Submission #153114

#	Time	Username	Problem	Language	Result	Execution time	Memory
153114		errorgorn	Arranging Shoes (IOI19_shoes)	C++14	25 / 100	34 ms	3192 KiB

shoes

#include "shoes.h"
using namespace std;
int s;
long long count_swaps(std::vector<int> shoes) {
	if (shoes.size()==2){
        return (shoes[0]<0)?0:1;
	}
	else {
        long long s=shoes.size();
        s>>=1;
        return s*(s-1)/2;
	}
}

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