Submission #418958

#	Time	Username	Problem	Language	Result	Execution time	Memory
418958		FlippenFaz	Arranging Shoes (IOI19_shoes)	C++14	15 / 100	23 ms	1860 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

long long sum_to_N(long long inp) {
    long long temp = 0;
    if (inp%2 == 0) {
        temp = inp/2;
        temp *= (inp+1);
    } else {
        temp = (inp+1)/2;
        temp *= inp;
    }
    return temp;
}

long long count_swaps(std::vector<int> s) {
	
    int num = (s.size()/2-1);
    cerr << "SIZE: " << num << endl;
    return sum_to_N( (s.size()/2-1) );

}

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