C++经典算法题-巴斯卡三角形

#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");
        }
    }