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P1163 银行贷款

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Baoshuo Ren 2020-10-25 20:45:23 +08:00 committed by Baoshuo Ren
parent 19ff441b6e
commit 9575e7d641
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 21 additions and 0 deletions
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problem/P1163/P1163.cpp Normal file
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#include <bits/stdc++.h>
using namespace std;
int main() {
double n, m, k, l, r, mid;
cin >> n >> m >> k;
l = 00.0;
r = 10.0;
while (r - l >= 0.0001) {
mid = (l + r) / 2;
if (pow(1.0 / (1.0 + mid), k) >= 1 - n / m * mid) {
r = mid;
}
else {
l = mid;
}
}
cout << fixed << setprecision(1) << l * 100 << endl;
return 0;
}