题解 | #蛇形矩阵#

#include <iostream>
using namespace std;
int snake(int x,int y){//根据横纵坐标求数值
    int a,b,c;
    a=x+y-1;
    b=a*(a+1)/2;
    c=b-y+1;
    return c;
}
int main() {
    int n;
    cin>>n;
    int a, b;
    for (b=1; b<=n; b++) {
        for (a=1; a<=n-b+1; a++) {
            cout<<snake(a, b)<<' ';
        }
        cout<<endl;
    }
}