#include <stdio.h>
#include <windows.h>
main()
{
int i,j,k,n=0;
int a[100][100]={0};
printf("请输入杨辉三角的行数：");
scanf("%d",&n);
for (i = 0; i<=n;i++)
a[i][0]=1;
for (i = 1; i<=n;i++)
for (j=1;j<=i;j++)
a[i][j]=a[i-1][j-1]+a[i-1][j];
for (i=0;i<=n;i++)
{ for (k=n;k>=i;k--)
printf(" ");
for (j=0;j<=i;j++)
printf("M",a[i][j]);
printf("\n");
}
system("pause");
}
