软院校赛F题

大水题，题目大意a!和b^c比大小，1 <= a, b, c <=20000，思路就是用log。

#define _CRT_SECURE_NO_DEPRECATE#include<iostream>#include<cstdio>#include<algorithm>#include<string>#include<cstring>#include<queue>#include<vector>#include<cmath>#include<ctime>#define mx 200005#define LL long long #define mod 1000000009#define esp 1e-12#define y1 y1234#define inf 0x3f3f3f3f#define lson l,m,rt<<1#define rson m+1,r,rt<<1|1const double PI = acos(-1.0);using namespace std;int a[1005];double num[22222];int main(){num[0] = 0;for (int i = 1; i < 20000; i++){num[i] = num[i - 1] + log(double(i));}int a, b, c;while (scanf("%d%d%d", &a, &b, &c) == 3) {double y = c * log(double(b));if (num[a] == y)puts("0");else if (num[a] > y)puts("1");elseputs("-1");}}