Submission #383780

#	Time	Username	Problem	Language	Result	Execution time	Memory
383780		meperdonas203	Arranging Shoes (IOI19_shoes)	C++17	45 / 100	40 ms	1900 KiB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> s) {
	for(int i=0;i<s.size();i++){
    s[i]=(s[i]<0)?-1:1;
  }
  long long int suma=0;
  long long int movs=0;
  for(auto i:s){
    if(i<0){
      if(suma>0){
        movs+=suma;
      }
      suma+=i;
    }else{
      suma+=i;
      if(suma<0){
        movs+=abs(suma);
      }
    }
  }
  return movs;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:5:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 |  for(int i=0;i<s.size();i++){
      |              ~^~~~~~~~~

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