【Codeforces Round #422 (Div. 2) A】I'm bored with life

【题目链接】:http://codeforces.com/contest/822/problem/A

【题意】

让你求a!和b!的gcd
min(a,b)<=12

【题解】

哪个小就输出那个数的阶乘

【Number Of WA】

0

【反思】

【完整代码】

#include <bits/stdc++.h>
using namespace std;
#define lson l,m,rt<<1
#define rson m+1,r,rt<<1|1
#define LL long long
#define rep1(i,a,b) for (int i = a;i <= b;i++)
#define rep2(i,a,b) for (int i = a;i >= b;i--)
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define ms(x,y) memset(x,y,sizeof x)
#define Open() freopen("F:\rush.txt","r",stdin)
#define Close() ios::sync_with_stdio(0)

typedef pair<int,int> pii;
typedef pair<LL,LL> pll;

const int dx[9] = {0,1,-1,0,0,-1,-1,1,1};
const int dy[9] = {0,0,0,-1,1,-1,1,-1,1};
const double pi = acos(-1.0);
const int N = 12+5;

LL fac[N];

int main(){
    //Open();
    Close();
    fac[0] = 1;
    rep1(i,1,12)
        fac[i] = 1LL*fac[i-1]*i;
    int a,b;
    cin >> a >> b;
    cout << fac[min(a,b)] << endl;
    return 0;
}