解题报告3173

水题

代码如下：

#include <iostream>using namespace std;int main(){int num[20][20]={0};int N,S;cin>>N>>S;int n = S;for (int i = 0;i < N;i++){for (int j = 0;j < N;j++){if (i>=j){num[j][i] = n++;if(n>9)n = 1;}}}for (int i = 0;i < N;i++){for (int j = 0;j < N;j++){if(num[i][j]>0)cout<<num[i][j];elsecout<<" ";if(j!=N-1)cout<<" ";}cout<<endl;}}