Submission #1097108

#	Time	Username	Problem	Language	Result	Execution time	Memory
1097108		Trisanu_Das	Infinite Race (EGOI24_infiniterace2)	C++17	Compilation error	0 ms	0 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long

int v[200005];

signed main(){
  ios_base::sync_with_stdio(0); cin.tie(0);
  int m, n; cin >> m >> n;
  int mx = 0;
  while(n--){
    int x; cin >> x;
    if(x){
      if(v[x] == mx) v[x] = ++mx;
      else v[x] = mx;
    }else if(a[-x] != 0) --a[-x];
  }
  cout << max(mx - 1, 0) << '\n';
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:16:14: error: 'a' was not declared in this scope
   16 |     }else if(a[-x] != 0) --a[-x];
      |              ^
Main.cpp:18:24: error: no matching function for call to 'max(long long int, int)'
   18 |   cout << max(mx - 1, 0) << '\n';
      |                        ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from Main.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
Main.cpp:18:24: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   18 |   cout << max(mx - 1, 0) << '\n';
      |                        ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from Main.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
Main.cpp:18:24: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   18 |   cout << max(mx - 1, 0) << '\n';
      |                        ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from Main.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
Main.cpp:18:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   18 |   cout << max(mx - 1, 0) << '\n';
      |                        ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from Main.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
Main.cpp:18:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   18 |   cout << max(mx - 1, 0) << '\n';
      |                        ^