Submission #965350

#	Time	Username	Problem	Language	Result	Execution time	Memory
965350		akacool445k	Arranging Shoes (IOI19_shoes)	C++14	45 / 100	18 ms	3272 KiB

shoes

#include "shoes.h"

long long count_swaps(std::vector<int> s) {
	long long ans = 0;
	int a = 0, b = 0; 
	for(int x : s) {
		if(x < 0) {
			if(b > 0) {
				ans += b;
				b--;
			} else {
				a++;
			}
		} else {
			if(a > 0) {
				a--;
				ans += a;
			} else {
				b++;
			}
		}
	}
	return ans;
}

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