[ImgBot] Optimize images

*Total -- 550.15kb -> 287.45kb (47.75%)

/solution/1200-1299/1274.Number of Ships in a Rectangle/images/1445_example_1.png -- 23.83kb -> 4.98kb (79.1%)
/solution/1200-1299/1259.Handshakes That Don't Cross/images/5125_example_2.png -- 15.39kb -> 4.18kb (72.81%)
/solution/1500-1599/1559.Detect Cycles in 2D Grid/images/5482e1.png -- 3.68kb -> 1.02kb (72.3%)
/solution/1200-1299/1256.Encode Number/images/encode_number.png -- 9.19kb -> 2.71kb (70.45%)
/solution/1200-1299/1259.Handshakes That Don't Cross/images/5125_example_3.png -- 64.84kb -> 20.16kb (68.91%)
/solution/1100-1199/1135.Connecting Cities With Minimum Cost/images/1314_ex1.png -- 3.18kb -> 1.00kb (68.46%)
/solution/1000-1099/1059.All Paths from Source Lead to Destination/images/485_example_3.png -- 23.61kb -> 7.77kb (67.08%)
/solution/1500-1599/1559.Detect Cycles in 2D Grid/images/5482e2.png -- 3.97kb -> 1.31kb (67.07%)
/solution/1000-1099/1059.All Paths from Source Lead to Destination/images/485_example_1.png -- 20.94kb -> 7.03kb (66.41%)
/solution/1100-1199/1136.Parallel Courses/images/1316_ex1.png -- 4.04kb -> 1.39kb (65.55%)
/solution/1000-1099/1059.All Paths from Source Lead to Destination/images/485_example_4.png -- 21.04kb -> 7.28kb (65.4%)
/solution/1100-1199/1136.Parallel Courses/images/1316_ex2.png -- 4.17kb -> 1.45kb (65.3%)
/solution/1000-1099/1059.All Paths from Source Lead to Destination/images/485_example_2.png -- 27.90kb -> 9.82kb (64.79%)
/solution/1500-1599/1559.Detect Cycles in 2D Grid/images/5482e3.png -- 2.76kb -> 0.98kb (64.37%)
/solution/1000-1099/1059.All Paths from Source Lead to Destination/images/485_example_5.png -- 12.82kb -> 4.59kb (64.19%)
/solution/1500-1599/1568.Minimum Number of Days to Disconnect Island/images/1926_island.png -- 5.44kb -> 2.12kb (61.11%)
/solution/1100-1199/1135.Connecting Cities With Minimum Cost/images/1314_ex2.png -- 5.99kb -> 2.52kb (57.97%)
/solution/1500-1599/1557.Minimum Number of Vertices to Reach All Nodes/images/5480e2.png -- 6.78kb -> 2.96kb (56.41%)
/solution/1500-1599/1557.Minimum Number of Vertices to Reach All Nodes/images/5480e1.png -- 8.23kb -> 3.67kb (55.34%)
/solution/1500-1599/1569.Number of Ways to Reorder Array to Get Same BST/images/ex1.png -- 7.08kb -> 3.19kb (54.93%)
/solution/1500-1599/1569.Number of Ways to Reorder Array to Get Same BST/images/abc.png -- 7.59kb -> 3.52kb (53.6%)
/solution/1200-1299/1214.Two Sum BSTs/images/1368_2_b.png -- 9.17kb -> 4.30kb (53.09%)
/solution/1200-1299/1214.Two Sum BSTs/images/1368_2_a.png -- 5.53kb -> 2.68kb (51.5%)
/solution/1200-1299/1214.Two Sum BSTs/images/1368_1_b.png -- 5.11kb -> 2.49kb (51.38%)
/solution/1100-1199/1168.Optimize Water Distribution in a Village/1359_ex1.png -- 4.76kb -> 2.33kb (51.12%)
/solution/1200-1299/1214.Two Sum BSTs/images/1368_1_a2.png -- 4.95kb -> 2.51kb (49.2%)
/solution/1500-1599/1569.Number of Ways to Reorder Array to Get Same BST/images/ex4.png -- 3.94kb -> 2.01kb (49.03%)
/solution/1500-1599/1569.Number of Ways to Reorder Array to Get Same BST/images/bb.png -- 3.66kb -> 2.12kb (42.11%)
/solution/1000-1099/1066.Campus Bikes II/1261_example_1_v2.png -- 18.90kb -> 11.38kb (39.76%)
/solution/1000-1099/1057.Campus Bikes/images/1261_example_1_v2.png -- 18.90kb -> 11.38kb (39.76%)
/solution/1000-1099/1066.Campus Bikes II/1261_example_2_v2.png -- 20.00kb -> 12.26kb (38.72%)
/solution/1000-1099/1057.Campus Bikes/images/1261_example_2_v2.png -- 20.00kb -> 12.26kb (38.72%)
/solution/1500-1599/1559.Detect Cycles in 2D Grid/images/5482e11.png -- 6.06kb -> 3.74kb (38.27%)
/solution/0300-0399/0302.Smallest Rectangle Enclosing Black Pixels/images/302_smallest_rectangle_enclosing_black_pixels.png -- 6.28kb -> 4.04kb (35.63%)
/solution/1500-1599/1559.Detect Cycles in 2D Grid/images/5482e22.png -- 6.16kb -> 3.98kb (35.36%)
/solution/0300-0399/0308.Range Sum Query 2D - Mutable/images/308_range_sum_query_2d_mutable.png -- 23.63kb -> 16.38kb (30.69%)
/solution/1100-1199/1197.Minimum Knight Moves/images/knight.png -- 14.79kb -> 11.92kb (19.4%)
/solution/1200-1299/1273.Delete Tree Nodes/images/1421_sample_1.png -- 18.63kb -> 15.37kb (17.51%)
/solution/1200-1299/1245.Tree Diameter/images/1397_example_2.png -- 13.39kb -> 11.85kb (11.48%)
/solution/1200-1299/1245.Tree Diameter/images/1397_example_1.png -- 6.71kb -> 5.99kb (10.72%)
/solution/1100-1199/1102.Path With Maximum Minimum Value/images/1313_ex3.jpeg -- 14.08kb -> 13.32kb (5.36%)
/solution/1100-1199/1102.Path With Maximum Minimum Value/images/1313_ex1.jpeg -- 9.82kb -> 9.38kb (4.52%)
/solution/1100-1199/1102.Path With Maximum Minimum Value/images/1313_ex2.jpeg -- 10.51kb -> 10.05kb (4.32%)
/solution/1500-1599/1560.Most Visited Sector in  a Circular Track/images/3rd45e.jpg -- 22.68kb -> 22.02kb (2.92%)

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