Submission #484450

#	Time	Username	Problem	Language	Result	Execution time	Memory
484450		Marslai24	Naan (JOI19_naan)	C++17	Compilation error	0 ms	0 KiB

naan

#include <bits/stdc++.h>
using namespace std;
#define int long long // a.k.a. TLE creator
#define all(x) x.begin(), x.end()

template<class A, class B> istream &operator >>(istream &o, pair<A, B> &x){return o >> x.first >> x.second, o;}
template<class A, class B> ostream &operator <<(ostream &o, pair<A, B> &x){return o << x.first << ' ' << x.second, o;}

const int INF = 4e18, MOD = 1e9 + 7, N = 1e5 + 10, K = __lg(N) + 1;

void setIO(){ios::sync_with_stdio(false); cin.tie(0);}

struct frac{
    int p, q;
    frac(){p = 0, q = 1;}
    frac(int _p, int _q) : p(_p), q(_q){}
    int gcd(int a, int b){return b ? gcd(b, a % b) : a;}
    void simple(){
        int g = gcd(p, q);
        if(!g)return;
        p /= g, q /= g;
    }
    bool operator <(const frac &o)const{
        return p * o.q < o.p * q;
    }
    bool operator ==(frac &o){
        simple(); o.simple();
        return p == o.p && q == o.q;
    }
    frac operator +(const frac &o)const{
        frac ans;
        ans.q = q * o.q;
        ans.p = p * o.q + o.p * q;
        ans.simple();
        return ans;
    }
    frac operator -(const frac &o)const{
        frac ans;
        ans.q = q * o.q;
        ans.p = p * o.q - o.p * q;
        ans.simple();
        return ans;
    }
    frac operator *(const frac &o)const{
        frac ans(p * o.p, q * o.q);
        ans.simple();
        return ans;
    }
    frac operator /(const frac &o)const{
        frac ans(p * o.q, o.p * q);
        ans.simple();
        return ans;
    }
    void print(){
        cout << p << ' ' << q << endl;
    }
};

signed main(){
    setIO();
    int n, l;
    cin >> n >> l;
    frac a[n][l];
    for(int i = 0; i < n; i++){
        for(int j = 0; j < l; j++){
            int x;
            cin >> x;
            a[i][j] = frac(x, 1);
        }
    }
    vector<pair<frac, int>> best[n];
    for(int i = 0; i < n; i++){
        int cnt = 0;
        frac tar, now, pre, ptr;
        for(int j = 0; j < l; j++)tar = tar + a[i][j];
        tar = tar / frac(n, 1);
        for(int j = 0; j < l; ){
            if(now + a[i][j] * (frac(1, 1) - ptr) - pre < tar){
                now = now + a[i][j] * (frac(1, 1) - ptr);
                ptr = frac();
                j++;
            }else{
                frac rem = tar - (now - pre);
                rem = rem / a[i][j];
                now = now + rem;
                best[cnt++].push_back({now, i});
                pre = now;
                ptr = ptr + rem;
                if(ptr == frac(1, 1))j++;
            }
        }
    }
    for(int i = 0; i < n; i++){
        sort(all(best[i]));
    }
    bool vis[n]{};
    vector<int> ans;
    for(int i = 0; i < n; i++){
        for(auto [j, k] : best[i]){
            if(!vis[k]){
                if(i != n - 1)j.print();
                vis[k] = 1;
                ans.push_back(k + 1);
                break;
            }
        }
    }
    for(int i : ans)cout << i << ' ';
}

Compilation message (stderr)

naan.cpp: In function 'int main()':
naan.cpp:89:24: error: no match for 'operator==' (operand types are 'frac' and 'frac')
   89 |                 if(ptr == frac(1, 1))j++;
      |                    ~~~ ^~ ~~~~~~~~~~
      |                    |      |
      |                    frac   frac
naan.cpp:26:10: note: candidate: 'bool frac::operator==(frac&)' (near match)
   26 |     bool operator ==(frac &o){
      |          ^~~~~~~~
naan.cpp:26:10: note:   conversion of argument 1 would be ill-formed:
naan.cpp:89:27: error: cannot bind non-const lvalue reference of type 'frac&' to an rvalue of type 'frac'
   89 |                 if(ptr == frac(1, 1))j++;
      |                           ^~~~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:1035:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)'
 1035 |     operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1035:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:1131:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)'
 1131 |     operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1131:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:1206:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1206 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1206:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:1298:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)'
 1298 |     operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1298:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:1373:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1373 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1373:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:1466:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)'
 1466 |     operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1466:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:1545:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1545 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1545:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from naan.cpp:1:
/usr/include/c++/10/bits/regex.h:2101:5: note: candidate: 'template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const std::__cxx11::match_results<_BiIter, _Alloc>&, const std::__cxx11::match_results<_BiIter, _Alloc>&)'
 2101 |     operator==(const match_results<_Bi_iter, _Alloc>& __m1,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:2101:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 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 naan.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:466:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
  466 |     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:466:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::pair<_T1, _T2>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 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 naan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:360:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
  360 |     operator==(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:360:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::reverse_iterator<_Iterator>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 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 naan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:398:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
  398 |     operator==(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:398:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::reverse_iterator<_Iterator>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 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 naan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1427:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
 1427 |     operator==(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1427:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::move_iterator<_IteratorL>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 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 naan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1495:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
 1495 |     operator==(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1495:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::move_iterator<_IteratorL>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/iosfwd:40,
                 from /usr/include/c++/10/ios:38,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from naan.cpp:1:
/usr/include/c++/10/bits/postypes.h:222:5: note: candidate: 'template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)'
  222 |     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/postypes.h:222:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::fpos<_StateT>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/string:41,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from naan.cpp:1:
/usr/include/c++/10/bits/allocator.h:206:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_T2>&)'
  206 |     operator==(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
/usr/include/c++/10/bits/allocator.h:206:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::allocator<_CharT>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from naan.cpp:1:
/usr/include/c++/10/string_view:490:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
  490 |     operator==(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:490:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from naan.cpp:1:
/usr/include/c++/10/string_view:496:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)'
  496 |     operator==(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:496:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from naan.cpp:1:
/usr/include/c++/10/string_view:519:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >, std::basic_string_view<_CharT, _Traits>)'
  519 |     operator==(__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:519:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from naan.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6153:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6153 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6153:5: note:   template argument deduction/substitution failed:
naan.cpp:89:36: note:   'frac' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
   89 |                 if(ptr == frac(1, 1))j++;
      |                                    ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/co