Submission #143410

#	Time	Username	Problem	Language	Result	Execution time	Memory
143410		gs14004	Arranging Shoes (IOI19_shoes)	C++17	15 / 100	34 ms	1916 KiB

shoes

#include "shoes.h"
#define sz(v) ((int)(v).size())
long long count_swaps(std::vector<int> s) {
  	int n = sz(s) / 2;
	return 1ll * n * (n - 1) / 2;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15