算法训练——c语言经典算法大全-巴斯卡三角形(三)

 

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 #include <stdio.h>
#define N 12
long combi(int n, int r){
int i;
long p = 1;
for(i = 1; i <= r; i++)
p = p * (n-i+1) / i;
return p;
}
void paint() {
int n, r, t;
for(n = 0; n <= N; n++) {
for(r = 0; r <= n; r++) {
int i;/* 排版设定开始 */
if(r == 0) {
for(i = 0; i <= (N-n); i++)
printf(" ");
}else {
printf(" ");
} /* 排版设定结束 */
printf("%3d", combi(n, r));
}
printf("\n");
} }