A. A Big Dinner

题目链接：猛戳这儿

题意：求三个数的全排列

AC Code：

#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
long a[10],t;
long cmp(long x,long y){
    return x<y;
}
int main(){
    scanf("%d",&t);
    for (long i=1;i<=t;++i){
        for (long j=1;j<=3;++j)
            scanf("%d",&a[j]);
        sort(a+1,a+4,cmp);
        printf("Case #%d:
",i);
        do{
            printf("%d %d %d
",a[1],a[2],a[3]);
        }while(next_permutation(a+1,a+4));
    }
    return 0;
}

By：王桢旭