未优化：测试数据 #0: Accepted, time = 0 ms, mem = 1156 KiB, score = 10
测试数据 #1: Accepted, time = 0 ms, mem = 1152 KiB, score = 10
测试数据 #2: Accepted, time = 15 ms, mem = 1160 KiB, score = 10
测试数据 #3: Accepted, time = 0 ms, mem = 1156 KiB, score = 10
测试数据 #4: Accepted, time = 31 ms, mem = 1156 KiB, score = 10
测试数据 #5: Accepted, time = 265 ms, mem = 1156 KiB, score = 10
测试数据 #6: Accepted, time = 406 ms, mem = 1156 KiB, score = 10
测试数据 #7: Accepted, time = 453 ms, mem = 1156 KiB, score = 10
测试数据 #8: TimeLimitExceeded, time = 1015 ms, mem = 1160 KiB, score = 0
测试数据 #9: TimeLimitExceeded, time = 1015 ms, mem = 1156 KiB, score = 0

优化后：
测试数据 #0: Accepted, time = 0 ms, mem = 4644 KiB, score = 10
测试数据 #1: Accepted, time = 0 ms, mem = 4644 KiB, score = 10
测试数据 #2: Accepted, time = 0 ms, mem = 4644 KiB, score = 10
测试数据 #3: Accepted, time = 15 ms, mem = 4648 KiB, score = 10
测试数据 #4: Accepted, time = 15 ms, mem = 4644 KiB, score = 10
测试数据 #5: Accepted, time = 31 ms, mem = 4648 KiB, score = 10
测试数据 #6: Accepted, time = 31 ms, mem = 4648 KiB, score = 10
测试数据 #7: Accepted, time = 46 ms, mem = 4648 KiB, score = 10
测试数据 #8: Accepted, time = 125 ms, mem = 4648 KiB, score = 10
测试数据 #9: Accepted, time = 171 ms, mem = 4648 KiB, score = 10