Submission #474109

#	Time	Username	Problem	Language	Result	Execution time	Memory
474109		ValiAntonie	Arranging Shoes (IOI19_shoes)	C++14	0 / 100	1 ms	588 KiB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> v){
int indice = -1;
int v2[100001];
int i = 0, nr = 0, numar = 0, j = 0, j2 = 0, nr2;
int n = v.size();
for(i=0;i<n;i++)
  v2[i] = v[i];
for(i=0;i<n;i++){
    if(v2[i] > 0 && v2[i+1] < 0){
        swap(v2[i],v2[i+1]);
        nr2++;
    }
}
for(i=0;i<n;i++){
    if(v2[i] != -v2[i+1] && v2[i+1] != -v2[i+2] && v2[i] > 0){
        swap(v2[i],v2[i+1]);
        nr2++;
    }
}
for(i=indice;i<n;i++){
    if(v[i] < 0){
        indice++;
        numar = -v[i];
        for(j=i;j>indice;j--){
            swap(v[j],v[j-1]);
            nr++;
        }
        indice++;
        for(j2=1;j2<n;j2++){
            if(v[j2] == numar){
           for(j=i;j>indice;j--){
             swap(v[j],v[j-1]);
             nr++;
            }
            }
        }
        i = indice;
    }
}
return min(nr,nr2);
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:7:46: warning: 'nr2' may be used uninitialized in this function [-Wmaybe-uninitialized]
    7 | int i = 0, nr = 0, numar = 0, j = 0, j2 = 0, nr2;
      |                                              ^~~

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