제출 #1360115

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1360115		husseinjuanda	Gift (IZhO18_nicegift)	C++20	컴파일 에러	0 ms	0 KiB

nicegift

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

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, k; cin >> n >> k;
    set<pair<int, int>> x;
    for(int i = 0; i < n; i++){
        int b; cin >> b;
        x.insert({b, i});
    }
    vector<pair<int, vector<int>>> op;
    while(x.size() >= k){
        vector<pair<int, int>> j;
        for(int y = 0; y < k; y++){
            j.push_back(*x.rbegin());
            x.erase(prev(x.end()));
        }
        int v = j.back().first;
        if(x.size() > 0){
            v = v - x.rbegin()->first;
        }
        v = max(v, 1);
        vector<int> id;
        for(int i = 0; i < j.size(); i++){
            j[i].first -= v;
            if(j[i].first != 0){
                x.insert(j[i]);
            }
            id.push_back(j[i].second);
        }
        op.push_back({v, id});
    }
    if(x.size() != 0){
        cout << -1 << "\n";
        return 0;
    }
    cout << op.size() << "\n";
    for(auto [a, b] : op){
        cout << a << " ";
        for(auto i : b){
            cout << i+1 << " ";
        }cout << "\n";
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

nicegift.cpp: In function 'int main()':
nicegift.cpp:25:16: error: no matching function for call to 'max(long long int&, int)'
   25 |         v = max(v, 1);
      |             ~~~^~~~~~
In file included from /usr/include/c++/13/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51,
                 from nicegift.cpp:1:
/usr/include/c++/13/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
nicegift.cpp:25:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   25 |         v = max(v, 1);
      |             ~~~^~~~~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note:   template argument deduction/substitution failed:
nicegift.cpp:25:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   25 |         v = max(v, 1);
      |             ~~~^~~~~~
In file included from /usr/include/c++/13/algorithm:61:
/usr/include/c++/13/bits/stl_algo.h:5795:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5795 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5795:5: note:   template argument deduction/substitution failed:
nicegift.cpp:25:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   25 |         v = max(v, 1);
      |             ~~~^~~~~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5805 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note:   template argument deduction/substitution failed:
nicegift.cpp:25:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   25 |         v = max(v, 1);
      |             ~~~^~~~~~