c++作业7

杨辉三角

#include <iostream>using namespace std;void yh(int n);int main() {    int n;    cin >> n;    yh(n);    return 0;}void yh(int n){    int a[50][50];    for (int i=0; i<n; i++)    {        a[i][0] = 1;        a[i][i] = 1;    }    for (int i=2; i<n; i++)    {        for (int j=1; j<n-1; j++)        {            a[i][j] = a[i-1][j-1] + a[i-1][j];        }    }    for (int i=0; i<n; i++)    {        for (int j=0; j<i+1; j++)        {           cout << a[i][j]<<" ";        }        cout << endl<<;   }    cout << endl;}