This commit is contained in:
Andrew 2019-11-18 11:02:11 +07:00
parent 0d75f30a49
commit 4744ebb565
69 changed files with 7 additions and 5 deletions

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// ac_4_14.cpp
// Горбацевич Андрей
#include <iostream>
#include <cmath>
using namespace std;
double inline ai(int i) {
return ((i%3 == 0)? (i / 3.) : (i / (i - 3.)));
}
double sai(int i) {
double out = 0;
for (int k = 1; k <= i; k++) {
auto fr = ai(k);
out += pow(fr, 2);
}
return out;
}
int main() {
int N;
cout << "N >>>";
cin >> N;
cout << "S= " << sai(N) << endl;
}