Update notebook copyright

2021-04-01 20:14:10 +02:00
parent 823371161c
commit df6a885600
242 changed files with 242 additions and 242 deletions
--- a/examples/notebook/algorithms/knapsack.ipynb
+++ b/examples/notebook/algorithms/knapsack.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/algorithms/simple_knapsack_program.ipynb
+++ b/examples/notebook/algorithms/simple_knapsack_program.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/cvrp.ipynb
+++ b/examples/notebook/constraint_solver/cvrp.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/cvrp_reload.ipynb
+++ b/examples/notebook/constraint_solver/cvrp_reload.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/cvrptw.ipynb
+++ b/examples/notebook/constraint_solver/cvrptw.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/cvrptw_break.ipynb
+++ b/examples/notebook/constraint_solver/cvrptw_break.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/simple_cp_program.ipynb
+++ b/examples/notebook/constraint_solver/simple_cp_program.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/simple_routing_program.ipynb
+++ b/examples/notebook/constraint_solver/simple_routing_program.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/tsp.ipynb
+++ b/examples/notebook/constraint_solver/tsp.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/tsp_circuit_board.ipynb
+++ b/examples/notebook/constraint_solver/tsp_circuit_board.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/tsp_cities.ipynb
+++ b/examples/notebook/constraint_solver/tsp_cities.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/tsp_distance_matrix.ipynb
+++ b/examples/notebook/constraint_solver/tsp_distance_matrix.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp.ipynb
+++ b/examples/notebook/constraint_solver/vrp.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_breaks.ipynb
+++ b/examples/notebook/constraint_solver/vrp_breaks.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_capacity.ipynb
+++ b/examples/notebook/constraint_solver/vrp_capacity.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_drop_nodes.ipynb
+++ b/examples/notebook/constraint_solver/vrp_drop_nodes.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_global_span.ipynb
+++ b/examples/notebook/constraint_solver/vrp_global_span.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_initial_routes.ipynb
+++ b/examples/notebook/constraint_solver/vrp_initial_routes.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_pickup_delivery.ipynb
+++ b/examples/notebook/constraint_solver/vrp_pickup_delivery.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_pickup_delivery_fifo.ipynb
+++ b/examples/notebook/constraint_solver/vrp_pickup_delivery_fifo.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_pickup_delivery_lifo.ipynb
+++ b/examples/notebook/constraint_solver/vrp_pickup_delivery_lifo.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_resources.ipynb
+++ b/examples/notebook/constraint_solver/vrp_resources.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_starts_ends.ipynb
+++ b/examples/notebook/constraint_solver/vrp_starts_ends.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_time_windows.ipynb
+++ b/examples/notebook/constraint_solver/vrp_time_windows.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_tokens.ipynb
+++ b/examples/notebook/constraint_solver/vrp_tokens.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrp_with_time_limit.ipynb
+++ b/examples/notebook/constraint_solver/vrp_with_time_limit.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrpgs.ipynb
+++ b/examples/notebook/constraint_solver/vrpgs.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/constraint_solver/vrptw_store_solution_data.ipynb
+++ b/examples/notebook/constraint_solver/vrptw_store_solution_data.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/3_jugs_mip.ipynb
+++ b/examples/notebook/contrib/3_jugs_mip.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/3_jugs_regular.ipynb
+++ b/examples/notebook/contrib/3_jugs_regular.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/a_round_of_golf.ipynb
+++ b/examples/notebook/contrib/a_round_of_golf.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/all_interval.ipynb
+++ b/examples/notebook/contrib/all_interval.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/alldifferent_except_0.ipynb
+++ b/examples/notebook/contrib/alldifferent_except_0.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/alphametic.ipynb
+++ b/examples/notebook/contrib/alphametic.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/assignment.ipynb
+++ b/examples/notebook/contrib/assignment.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/assignment6_mip.ipynb
+++ b/examples/notebook/contrib/assignment6_mip.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/bacp.ipynb
+++ b/examples/notebook/contrib/bacp.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/blending.ipynb
+++ b/examples/notebook/contrib/blending.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/broken_weights.ipynb
+++ b/examples/notebook/contrib/broken_weights.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/bus_schedule.ipynb
+++ b/examples/notebook/contrib/bus_schedule.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/car.ipynb
+++ b/examples/notebook/contrib/car.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/check_dependencies.ipynb
+++ b/examples/notebook/contrib/check_dependencies.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/circuit.ipynb
+++ b/examples/notebook/contrib/circuit.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/coins3.ipynb
+++ b/examples/notebook/contrib/coins3.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/coins_grid.ipynb
+++ b/examples/notebook/contrib/coins_grid.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/coins_grid_mip.ipynb
+++ b/examples/notebook/contrib/coins_grid_mip.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/coloring_ip.ipynb
+++ b/examples/notebook/contrib/coloring_ip.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/combinatorial_auction2.ipynb
+++ b/examples/notebook/contrib/combinatorial_auction2.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/contiguity_regular.ipynb
+++ b/examples/notebook/contrib/contiguity_regular.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/costas_array.ipynb
+++ b/examples/notebook/contrib/costas_array.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/covering_opl.ipynb
+++ b/examples/notebook/contrib/covering_opl.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/crew.ipynb
+++ b/examples/notebook/contrib/crew.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/crossword2.ipynb
+++ b/examples/notebook/contrib/crossword2.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/crypta.ipynb
+++ b/examples/notebook/contrib/crypta.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/crypto.ipynb
+++ b/examples/notebook/contrib/crypto.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/curious_set_of_integers.ipynb
+++ b/examples/notebook/contrib/curious_set_of_integers.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/debruijn_binary.ipynb
+++ b/examples/notebook/contrib/debruijn_binary.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/diet1.ipynb
+++ b/examples/notebook/contrib/diet1.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/diet1_b.ipynb
+++ b/examples/notebook/contrib/diet1_b.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/diet1_mip.ipynb
+++ b/examples/notebook/contrib/diet1_mip.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/discrete_tomography.ipynb
+++ b/examples/notebook/contrib/discrete_tomography.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/divisible_by_9_through_1.ipynb
+++ b/examples/notebook/contrib/divisible_by_9_through_1.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/dudeney.ipynb
+++ b/examples/notebook/contrib/dudeney.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/einav_puzzle.ipynb
+++ b/examples/notebook/contrib/einav_puzzle.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/einav_puzzle2.ipynb
+++ b/examples/notebook/contrib/einav_puzzle2.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/eq10.ipynb
+++ b/examples/notebook/contrib/eq10.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/eq20.ipynb
+++ b/examples/notebook/contrib/eq20.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/fill_a_pix.ipynb
+++ b/examples/notebook/contrib/fill_a_pix.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/furniture_moving.ipynb
+++ b/examples/notebook/contrib/furniture_moving.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/futoshiki.ipynb
+++ b/examples/notebook/contrib/futoshiki.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/game_theory_taha.ipynb
+++ b/examples/notebook/contrib/game_theory_taha.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/grocery.ipynb
+++ b/examples/notebook/contrib/grocery.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/hidato.ipynb
+++ b/examples/notebook/contrib/hidato.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/just_forgotten.ipynb
+++ b/examples/notebook/contrib/just_forgotten.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/kakuro.ipynb
+++ b/examples/notebook/contrib/kakuro.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/kenken2.ipynb
+++ b/examples/notebook/contrib/kenken2.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/killer_sudoku.ipynb
+++ b/examples/notebook/contrib/killer_sudoku.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/knapsack_cp.ipynb
+++ b/examples/notebook/contrib/knapsack_cp.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/knapsack_mip.ipynb
+++ b/examples/notebook/contrib/knapsack_mip.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/labeled_dice.ipynb
+++ b/examples/notebook/contrib/labeled_dice.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/langford.ipynb
+++ b/examples/notebook/contrib/langford.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/least_diff.ipynb
+++ b/examples/notebook/contrib/least_diff.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/least_square.ipynb
+++ b/examples/notebook/contrib/least_square.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/lectures.ipynb
+++ b/examples/notebook/contrib/lectures.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/magic_sequence_sat.ipynb
+++ b/examples/notebook/contrib/magic_sequence_sat.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/magic_square.ipynb
+++ b/examples/notebook/contrib/magic_square.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/magic_square_and_cards.ipynb
+++ b/examples/notebook/contrib/magic_square_and_cards.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/magic_square_mip.ipynb
+++ b/examples/notebook/contrib/magic_square_mip.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/map.ipynb
+++ b/examples/notebook/contrib/map.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/marathon2.ipynb
+++ b/examples/notebook/contrib/marathon2.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/max_flow_taha.ipynb
+++ b/examples/notebook/contrib/max_flow_taha.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/max_flow_winston1.ipynb
+++ b/examples/notebook/contrib/max_flow_winston1.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/minesweeper.ipynb
+++ b/examples/notebook/contrib/minesweeper.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/mr_smith.ipynb
+++ b/examples/notebook/contrib/mr_smith.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/nonogram_default_search.ipynb
+++ b/examples/notebook/contrib/nonogram_default_search.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/nonogram_regular.ipynb
+++ b/examples/notebook/contrib/nonogram_regular.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/nonogram_table.ipynb
+++ b/examples/notebook/contrib/nonogram_table.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/nonogram_table2.ipynb
+++ b/examples/notebook/contrib/nonogram_table2.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/nontransitive_dice.ipynb
+++ b/examples/notebook/contrib/nontransitive_dice.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/examples/notebook/contrib/nqueens.ipynb
+++ b/examples/notebook/contrib/nqueens.ipynb
@@ -4,7 +4,7 @@
   "cell_type": "markdown",
   "metadata": {},
   "source": [
-    "##### Copyright 2020 Google LLC."
+    "##### Copyright 2021 Google LLC."
   ]
  },
  {
--- a/Show More
+++ b/Show More