Submission #961261

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
961261	2024-04-11T19:03:45 Z	pragmatist	Gift (IZhO18_nicegift)	C++17	Compilation error	0 ms	0 KB

nicegift

#include<bits/stdc++.h>

using namespace std;

const int N = (int)1e6+7;

int n, k;
long long a[N];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
	cin >> n >> k;
	long long tot = 0;
	int mx = 0;
	for(int i = 1; i <= n; ++i) {
		cin >> a[i];
		tot += a[i];
		mx = max(mx, a[i]);
	}    
	set<pair<long long, int> > s;
	for(int i = 1; i <= n; ++i) {
		s.insert({a[i], i});
	}
	vector<vector<long long> > ans;
	while((int)s.size()>=k) {
		vector<int> cur;       
		for(int j = 0; j < k; ++j) {
			auto it = --s.end();
			cur.push_back(it->second);
			s.erase(it);
		}
		int can = 1;
		if(!s.empty()) {
			can = (--s.end())->first;
		}
		can = a[cur.back()]-can+1;
		vector<long long> v={can};
		for(auto id : cur) {
			assert(a[id]>=can);
			v.push_back(id);
		}
		ans.push_back(v);
		for(auto id : cur) {
			a[id] -= can;
			if(a[id]>0) {
				s.insert({a[id], id});
			}
		}
	}
	if(!s.empty()) {
		cout << "-1\n";
		return 0;
	}
	cout << (int)ans.size() << "\n";
	for(auto x : ans) {
		for(auto y : x) {
			cout << y << ' ';
		}
		cout << "\n";
	}
    return 0;
}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:19:20: error: no matching function for call to 'max(int&, long long int&)'
   19 |   mx = max(mx, a[i]);
      |                    ^
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 nicegift.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:
nicegift.cpp:19:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   19 |   mx = max(mx, a[i]);
      |                    ^
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 nicegift.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:
nicegift.cpp:19:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   19 |   mx = max(mx, a[i]);
      |                    ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from nicegift.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:
nicegift.cpp:19:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   19 |   mx = max(mx, a[i]);
      |                    ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from nicegift.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:
nicegift.cpp:19:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   19 |   mx = max(mx, a[i]);
      |                    ^