python中assert的用法
assert：断言格式：assert 表达式 [, 参数]当表达式为真时，程序继续往下执行；当表达式为假时，抛出AssertionError错误，并将 参数 输出举例：def foo(s): n = int(s) assert n != 0, 'n is zero!' return 10 / nfoo('0...
清脆学姐
对BFS与DFS的一些看法 （ 以HDU 1242 Rescue为例 ）
Problem DescriptionAngel was caught by the MOLIGPY! He was put in prison by Moligpy. The prison is described as a N * M (N, M Angel's friends want to save Angel. Their task is: approach Ange
