| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 889119 | Erick_7314 | Arranging Shoes (IOI19_shoes) | C++17 | 15 ms | 2140 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "shoes.h"
long long count_swaps(std::vector<int> s) {
long long n = s.size() / 2;
// n*(n-1)/2
return n*(n-1)/2;
}
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