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743. 数组中的行

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https://www.acwing.com/problem/content/submission/code_detail/6863533/
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Baoshuo Ren 2021-08-03 15:03:14 +08:00 committed by Baoshuo Ren
parent ac5c9e19a0
commit eb20579b2a
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 19 additions and 0 deletions
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AcWing/743/743.cpp Normal file
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#include <bits/stdc++.h>
using namespace std;
int main() {
int l;
cin >> l;
char op;
cin >> op;
double x, sum = 0;
for (int i = 0; i < 12; i++) {
for (int j = 0; j < 12; j++) {
cin >> x;
if (i == l) sum += x;
}
}
cout << fixed << setprecision(1) << sum / (op == 'S' ? 1 : 12) << endl;
return 0;
}