제출 #172896

#제출 시각아이디문제언어결과실행 시간메모리
172896elitewantsyouGift (IZhO18_nicegift)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> //#pragma GCC optimize("Ofast") #define fi first #define se second const int N = 1000010; using namespace std; int n; int k; long long a[N]; int main() { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); ios_base::sync_with_stdio(0); cin >> n >> k; set < pair < long long, int > > s; long long S = 0; for(int i = 1; i <= n; i++){ cin >> a[i]; s.insert({a[i], i}); S += a[i]; } if(1ll * (--s.end())->fi > S / k || S % k){ cout << -1 << "\n"; return 0; } vector < long long > qu; vector < vector < int > > res; vector < int > v; while(s.size() > 0){ v.clear(); for(int i = 0; i < k; i++){ v.push_back((--s.end())->se); s.erase(--s.end()); } long long rem = 0; if(!s.empty()){ rem = (--s.end())->fi; } long long l = 1, r = min(a[v.back()], S / k); long long dif = a[v[0]] - rem; if(rem <= (S - dif * k) / k){ l = (S - rem * k) / k - 2; r = min(r, l + 2); l = max(l, 1); } else assert(0); while(l < r){ long long m = (l + r) / 2 + 1; if(max(rem, a[v[0]] - m) > (S - m * k) / k){ r = m - 1; } else{ l = m; } } S -= k * l; res.push_back(v); qu.push_back(l); for(int i: v){ a[i] -= l; if(!a[i]){ continue; } s.insert({a[i], i}); } } cout << qu.size() << "\n"; for(int i = 0; i < qu.size(); i++){ cout << qu[i]; for(int x: res[i]){ cout << " " << x; } cout << "\n"; } }

컴파일 시 표준 에러 (stderr) 메시지

nicegift.cpp: In function 'int main()':
nicegift.cpp:56:37: error: no matching function for call to 'max(long long int&, int)'
                         l = max(l, 1);
                                     ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from nicegift.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:219:5: note:   template argument deduction/substitution failed:
nicegift.cpp:56:37: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
                         l = max(l, 1);
                                     ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from nicegift.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:265:5: note:   template argument deduction/substitution failed:
nicegift.cpp:56:37: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
                         l = max(l, 1);
                                     ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from nicegift.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3462:5: note: candidate: template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)
     max(initializer_list<_Tp> __l)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
nicegift.cpp:56:37: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
                         l = max(l, 1);
                                     ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from nicegift.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3468:5: note: candidate: template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)
     max(initializer_list<_Tp> __l, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3468:5: note:   template argument deduction/substitution failed:
nicegift.cpp:56:37: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
                         l = max(l, 1);
                                     ^
nicegift.cpp:79:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < qu.size(); i++){
                        ~~^~~~~~~~~~~
nicegift.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen("input.txt", "r", stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
nicegift.cpp:19:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen("output.txt", "w", stdout);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~