50919 题解 递归实现排列型枚举
递归实现排列型枚举
https://ac.nowcoder.com/acm/problem/50919
c++ stl全排列函数 next_permutation不香吗qwq
#include<cstdio>
#include<algorithm>
using namespace std;
int n,a[9]= {1,2,3,4,5,6,7,8,9};
int main() {
scanf("%d",&n);
do {
for (int i=0; i<n; i++) printf("%d ",a[i]);
puts("");
} while(next_permutation(a,a+n));
}