#动态规划 while 1: try: n,m=map(int,input().split(' ')) dp=[[1 for i in range(n+1)] for j in range(m+1)] # print(dp) #[[0, 0, 0], [0, 0, 0], [0, 0, 0]] for i in range(1,m+1): for j in range(1,n+1): dp[i][j]=dp[i-1][j]+dp[i][j-1] pri...