牛客小白月赛1 B 简单题2 【数学】

题目链接

https://www.nowcoder.com/acm/contest/85/B

思路

这个 也是 E

AC代码

#include <cstdio>
#include <cstring>
#include <ctype.h>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <ctime>
#include <iostream>
#include <algorithm>
#include <deque>
#include <vector>
#include <queue>
#include <string>
#include <map>
#include <stack>
#include <set>
#include <numeric>
#include <sstream>
#include <iomanip>
#include <limits>

using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;

const double PI  = 3.14159265358979323846264338327;
const double E   = exp(1);
const double eps = 1e-6;

const int INF    = 0x3f3f3f3f;
const int maxn   = 1e5 + 5;
const int MOD    = 1e9 + 7;

int main()
{
    int t;
    cin >> t;
    while (t--)
    {
        int a, b, c;
        scanf("%d%d%d", &a, &b, &c);
        double sum;
        sum = pow(a, E);
        sum /= b;
        cout << setiosflags(ios::fixed) << setprecision(c) << sum <<endl;
    }
}