dp[i][j] = min(dp[i-1][j],j==1?dp[i-1][m]:dp[i-1][j-1])+tim[i][j]; 改成为什么过不了

				dp[i][j]=min(dp[i-1][1],dp[i-1][j])+tim[i][j];
			}
			else {
				dp[i][j]=min(dp[i-1][j+1],dp[i-1][j])+tim[i][j];