二维数组求杨辉三角

Posted 2020-10-30 要有梦想

 1 #include<stdio.h>
 2 int main(){
 3     int i,j,n;
 4     int a[13][13];
 5     do{
 6         printf("Enter n(1—12)：");
 7         scanf("%d",&n);
 8     }while(!(n>=1&&n<=12));
 9     for(i=0;i<=n;i++){
10         a[i][0]=1;
11         a[i][i]=1;
12         for(j=1;j<=i-1;j++)
13             a[i][j]=a[i-1][j-1]+a[i-1][j];
14         for(j=1;j<=37-3*i;j++)
15             printf(" ");
16         for(j=0;j<=i;j++)
17             printf("%6d",a[i][j]);
18         printf("\n\n");
19     }
20     return 0;
21 }