提出 925aef8f-308c-4334-b3ba-aa4cc589054f

コード

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

int main()
{
    vector<int> S;
    int Q,X,T;
    cin>>Q;
    for(int i=0;i<Q;i++){
        cin>>T;
        if(T==1)cin>>X;
        if(T==1){
           *S.end() = X; 
        }
        else if(T==2){
            cout<<S.at(0)<<endl;
            S.erase(S.at(0));
        }
        else if(T==3){
            cout<<S.size()<<endl;
        }
    }
}

結果

問題	点数	言語	結果	実行時間	メモリ
E - Q	0	C++	WJ	0 ms	0 KiB

コンパイルエラー

Main.cpp: In function 'int main()':
Main.cpp:17:20: error: no matching function for call to 'std::vector<int>::erase(__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&)'
   17 |             S.erase(S.at(0));
      |             ~~~~~~~^~~~~~~~~
In file included from /usr/include/c++/13/vector:66,
                 from /usr/include/c++/13/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:53,
                 from Main.cpp:1:
/usr/include/c++/13/bits/stl_vector.h:1534:7: note: candidate: 'constexpr std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::erase(const_iterator) [with _Tp = int; _Alloc = std::allocator<int>; iterator = std::vector<int>::iterator; const_iterator = std::vector<int>::const_iterator]'
 1534 |       erase(const_iterator __position)
      |       ^~~~~
/usr/include/c++/13/bits/stl_vector.h:1534:28: note:   no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} to 'std::vector<int>::const_iterator'
 1534 |       erase(const_iterator __position)
      |             ~~~~~~~~~~~~~~~^~~~~~~~~~
/usr/include/c++/13/bits/stl_vector.h:1562:7: note: candidate: 'constexpr std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::erase(const_iterator, const_iterator) [with _Tp = int; _Alloc = std::allocator<int>; iterator = std::vector<int>::iterator; const_iterator = std::vector<int>::const_iterator]'
 1562 |       erase(const_iterator __first, const_iterator __last)
      |       ^~~~~
/usr/include/c++/13/bits/stl_vector.h:1562:7: note:   candidate expects 2 arguments, 1 provided