| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 143409 | gs14004 | Arranging Shoes (IOI19_shoes) | C++17 | 2 ms | 376 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"
#define sz(v) ((int)(v).size())
long long count_swaps(std::vector<int> s) {
return 1ll * sz(s) * (sz(s) - 1) / 2;
}
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