#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"); } }