Submission #201541

#	Time	Username	Problem	Language	Result	Execution time	Memory
201541		s_avila_g	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	5 ms	376 KiB

shoes

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

long long count_swaps(std::vector<int> s) {
    bool der = false;
    int ans = 0;
    for(int i = 0 ; i < s.size(); i++){
        der = false;
        if(s[i] >  0)  der = true;
        int pos = s.size() + 1;
        for(int j = i+1; j < s.size(); j++){
            if(abs(s[i] == abs(s[j]))){
                pos = j;
                s.erase(s.begin() + j);
                break;
            }
        }
        if(pos == i  + 1 && !der){
            i += 2;
            continue;
        }
        if(pos == s.size() + 1) continue;
        if(der) ans += abs(i - pos);
        else ans += abs(i - pos) - 1;
    }
    return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:8:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0 ; i < s.size(); i++){
                     ~~^~~~~~~~~~
shoes.cpp:12:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = i+1; j < s.size(); j++){
                          ~~^~~~~~~~~~
shoes.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(pos == s.size() + 1) continue;
            ~~~~^~~~~~~~~~~~~~~

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