PAT 天梯赛 L1-040. 最佳情侣身高差 【水】

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cmath>
#include <deque>
#include <vector>
#include <queue>
#include <string>
#include <cstring>
#include <map>
#include <stack>
#include <set>
#include <cstdlib>
#include <ctype.h>
#include <numeric>
#include <sstream>
using namespace std;

typedef long long LL;
const double PI = 3.14159265358979323846264338327;
const double E = 2.718281828459;
const double eps = 1e-6;
const int MAXN = 0x3f3f3f3f;
const int MINN = 0xc0c0c0c0;
const int maxn = 1e5 + 5;
const int MOD = 1e9 + 7;

int main()
{
int n;
cin >> n;
while (n--)
{
char c;
double num;
scanf(" %c %lf", &c, &num);
if (c == 'M')
printf("%.2lf\n", (num * 1.0 / 1.09));
else
printf("%.2lf\n", num * 1.09);
}
}