| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1165029 | SG2Alok | Arranging Shoes (IOI19_shoes) | C++20 | 12 ms | 1864 KiB |
#include "shoes.h"
long long count_swaps(std::vector<int> s) {
long long tmp = s.size() / 2;
return tmp * (tmp - 1) / 2;
}
/*
-1 1 -2 2 -3 3
2
*/
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