Submission #169920

#	Time	Username	Problem	Language	Result	Execution time	Memory
169920		whttt	Arranging Shoes (IOI19_shoes)	C++14	50 / 100	1070 ms	3192 KiB

shoes

#include <vector>
#include <iostream>
#include <algorithm>
#define ll long long
 
using namespace std;
 
ll count_swaps(vector<int> S){
  	ll sol = 0;
  	while(1){
      	if(S.size() == 0){
          	break;
        }
      	for(ll i = 1;;i++){
          	if(S[i] == -S[0]){
              	sol += i;
              	if(S[0] < 0){
                  	sol--;
                }
              	S.erase(S.begin()+i);
              	S.erase(S.begin());
              	break;
            }
        }
    }
  	return sol;
}

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