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B2015 计算并联电阻的阻值

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Baoshuo Ren 2021-07-16 10:57:48 +08:00 committed by Baoshuo Ren
parent d4930597c4
commit 3bf4920268
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 10 additions and 0 deletions
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Luogu/problem/B2015/B2015.cpp Normal file
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#include <bits/stdc++.h>
using namespace std;
int main() {
double r1, r2;
cin >> r1 >> r2;
cout << fixed << setprecision(2) << 1 / (1 / r1 + 1 / r2) << endl;
return 0;
}