Submission #282679

#	Time	Username	Problem	Language	Result	Execution time	Memory
282679		medmdg	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	1 ms	256 KiB

shoes

#include <bits/stdc++.h>

using namespace std;
long long count_swaps(std::vector<int> S){
    int ans=0;
    int count=0;
    while(S.size()){
        if(S[0]>0)
            count ++;
        for(long long int i=1;i<S.size();i++){
            if(S[i]==-1*S[0]){
                count += i-1;
                S.erase(S.begin()+i);
                S.erase(S.begin());
                break;
            }
        }
        ans+=count;
    }
    return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:10:32: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |         for(long long int i=1;i<S.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