# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
1251256 | mohamedboukerche55 | Arranging Shoes (IOI19_shoes) | C++20 | 12 ms | 1956 KiB |
#include "shoes.h"
using namespace std;
long long count_swaps(std::vector<int> S)
{
int n = S.size()/2;
return n * (n-1)/2;
}
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