第一道题: #1\. input n, m, p = map(int, raw_input().strip().split()) matrix = [] for i in range(n): row = map(int, raw_input().strip().split()) matrix.append(row) #2\. bfs p_table = [[-1]*m for _ in range(n)] #p_table[0][0] = p pre_dict = {} i_pre = 0 j_pre = 0 current = [(0, 0, p, i_pre, j_pre...