Submission #409855

#	Time	Username	Problem	Language	Result	Execution time	Memory
409855		soba	Swapping Cities (APIO20_swap)	C++14	Compilation error	0 ms	0 KiB

swap

#include "swap.h"
#include <bits/stdc++.h>
#include <vector>
using namespace std;
map<pair<int,int> , int >mp;
void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) {
            mp[{0,1}]=-1;
}

int getMinimumFuelCapacity(int X, int Y){
    if(X==0&&Y==1)return mp[{x,y}];
    return -1;
}

Compilation message (stderr)

swap.cpp: In function 'int getMinimumFuelCapacity(int, int)':
swap.cpp:11:30: error: 'x' was not declared in this scope
   11 |     if(X==0&&Y==1)return mp[{x,y}];
      |                              ^
swap.cpp:11:32: error: 'y' was not declared in this scope
   11 |     if(X==0&&Y==1)return mp[{x,y}];
      |                                ^
swap.cpp:11:28: error: no match for 'operator[]' (operand types are 'std::map<std::pair<int, int>, int>' and '<brace-enclosed initializer list>')
   11 |     if(X==0&&Y==1)return mp[{x,y}];
      |                            ^
In file included from /usr/include/c++/10/map:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:81,
                 from swap.cpp:2:
/usr/include/c++/10/bits/stl_map.h:492:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
  492 |       operator[](const key_type& __k)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:492:34: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const key_type&' {aka 'const std::pair<int, int>&'}
  492 |       operator[](const key_type& __k)
      |                  ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_map.h:512:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
  512 |       operator[](key_type&& __k)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:512:29: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::map<std::pair<int, int>, int>::key_type&&' {aka 'std::pair<int, int>&&'}
  512 |       operator[](key_type&& __k)
      |                  ~~~~~~~~~~~^~~