Submission #401190

#	Time	Username	Problem	Language	Result	Execution time	Memory
401190		victoriad	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

#include "shoes.h"

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:5:5: error: 'vector' was not declared in this scope; did you mean 'std::vector'?
    5 |     vector<int>menos;
      |     ^~~~~~
      |     std::vector
In file included from /usr/include/c++/9/vector:67,
                 from shoes.h:5,
                 from shoes.cpp:1:
/usr/include/c++/9/bits/stl_vector.h:386:11: note: 'std::vector' declared here
  386 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
shoes.cpp:5:12: error: expected primary-expression before 'int'
    5 |     vector<int>menos;
      |            ^~~
shoes.cpp:6:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
shoes.cpp:7:19: error: 'menos' was not declared in this scope
    7 |         if(s[i]<0)menos.push_back(i);
      |                   ^~~~~
shoes.cpp:9:19: error: 'menos' was not declared in this scope
    9 |     for(int i=0;i<menos.size();i++){
      |                   ^~~~~
shoes.cpp:10:12: error: 'abs' was not declared in this scope
   10 |         x+=abs(i*2-menos[i]);
      |            ^~~