Submission #401192

#	Time	Username	Problem	Language	Result	Execution time	Memory
401192		victoriad	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

#include "shoes.h"
using namespace std;

long long count_swaps(std::vector<int> s) {
    long long int x=0;
    vector<int>menos;
    for(int i=0;i<s.size();i++){
        if(s[i]<0)menos.push_back(i);
    }
    for(int i=0;i<menos.size();i++){
        x+=abs(i*2-menos[i]);
    }
    return x;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:7:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
shoes.cpp:10:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for(int i=0;i<menos.size();i++){
      |                 ~^~~~~~~~~~~~~
shoes.cpp:11:12: error: 'abs' was not declared in this scope
   11 |         x+=abs(i*2-menos[i]);
      |            ^~~