Submission #196976

#	Time	Username	Problem	Language	Result	Execution time	Memory
196976		Basilhijaz	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	3 ms	380 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(std::vector<int> s) {
    int cnt = 0; long long swaps = 0;
    for(int i = 0; i < s.size(); i++){
        if(s[i] < 0){
            swaps += abs(i - (cnt * 2));
            for(int j = 0; j < s.size(); j++){
                bool check = false;
                if(s[j] == s[i]*-1){
                    check = true;
                    swaps += abs((cnt*2)+1 - j);
                }
                if(i > j){
                    if((cnt*2)+1 > j){
                        swaps--;
                    }
                    else if((cnt*2)+1 < j){
                        swaps++;
                    }
                }
                if(check){
                    break;
                }
            }
            cnt++;
        }
    }
	return swaps;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:6:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < s.size(); i++){
                    ~~^~~~~~~~~~
shoes.cpp:9:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int j = 0; j < s.size(); j++){
                            ~~^~~~~~~~~~

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