Submission #168291

#	Time	Username	Problem	Language	Result	Execution time	Memory
168291		juggernaut	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	33 ms	4088 KiB

shoes

#include<bits/stdc++.h>
using namespace std;
#include "shoes.h"
long long count_swaps(vector<int>a){
    int i,cnt=0;
    queue<int>pos,neg;
    for(i=0;i<a.size();i++)
        if(a[i]<0)pos.push(i);
        else neg.push(i);
    for(i=0;i<a.size();i++){
        if(i&1){
            cnt+=max(neg.front()-i,0);
            neg.pop();
        }else{
            cnt+=max(pos.front()-i,0);
            pos.pop();
        }
    }
    return cnt;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:7:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<a.size();i++)
             ~^~~~~~~~~
shoes.cpp:10:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<a.size();i++){
             ~^~~~~~~~~

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