Submission #889119

#	Time	Username	Problem	Language	Result	Execution time	Memory
889119		Erick_7314	Arranging Shoes (IOI19_shoes)	C++17	15 / 100	15 ms	2140 KiB

shoes

#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;
}

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