답안 #732622

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
732622	2023-04-29T06:51:40 Z	math_rabbit_1028	메기 농장 (IOI22_fish)	C++17	컴파일 오류	0 ms	0 KB

fish

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

long long zero[101010], full[101010];
vector< pair<int, long long> > ylist[101010];
vector< long long > sum[101010], dp[2][101010];

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
    for (int i = 0; i < M; i++) {
        X[i] += 1;
        Y[i] += 1;
        ylist[X[i]].push_back({Y[i], 0});
        ylist[X[i] - 1].push_back({Y[i], 0});
        ylist[X[i] + 1].push_back({Y[i], 0});
    }

    for (int i = 0; i <= N + 1; i++) {
        ylist[i].push_back({0, 0});
        ylist[i].push_back({N, 0});
        sort(ylist[i].begin(), ylist[i].end());
        ylist[i].erase(unique(ylist[i].begin(), ylist[i].end()), ylist[i].end());
    }

    for (int i = 0; i < M; i++) {
        int idx = lower_bound(ylist[X[i]].begin(), ylist[X[i]].end(), make_pair(Y[i], 0LL)) - ylist[X[i]].begin();
        ylist[X[i]][idx].second = W[i];
    }

    for (int i = 0; i <= N + 1; i++) {
        sum[i].push_back(0);
        for (int j = 1; j < ylist[i].size(); j++) {
            sum[i].push_back(sum[i].back() + ylist[i][j].second);
        }
    }

    for (int i = 0; i <= N + 1; i++) {
        for (int j = 0; j < ylist[i].size(); j++) dp[0][i].push_back(0);
        for (int j = 0; j < ylist[i].size(); j++) dp[1][i].push_back(0);
    }
    for (int j = 1; j < ylist[0].size() - 1; j++) dp[0][0][j] = -1e18;
    for (int j = 1; j < ylist[0].size() - 1; j++) dp[1][0][j] = -1e18;
    full[0] = -1e18;
    for (int i = 2; i <= N + 1; i++) {
        vector<int> temp, all;
        merge(ylist[i].begin(), ylist[i].end(), ylist[i - 1].begin(), ylist[i - 1].end(), temp.begin());
        merge(temp.begin(), temp.end(), ylist[i - 2].begin(), ylist[i - 2].end(), all.begin());
        all.erase(unique(all.begin(), all.end()), all.end());

        for (int t = 1; t < all.size() - 1; t++) {
            int j = lower_bound(ylist[i].begin(), ylist[i].end(), make_pair(all[t], 0LL)) - ylist[i].begin();
            int k = lower_bound(ylist[i - 1].begin(), ylist[i - 1].end(), make_pair(all[t], 0LL)) - ylist[i - 1].begin();
            zero[i] = max(zero[i], dp[1][i - 1][k] + sum[i][j]);
        }
        zero[i] = max(zero[i], zero[i - 1]);
        zero[i] = max(zero[i], full[i - 1] + sum[i][ylist[i].size() - 1]);

        for (int t = 1; t < all.size() - 1; t++) {
            int k = lower_bound(ylist[i - 1].begin(), ylist[i - 1].end(), make_pair(all[t], 0LL)) - ylist[i - 1].begin();
            full[i] = max(full[i], dp[0][i - 1][k] + sum[i - 1][ylist[i - 1].size() - 1] - sum[i - 1][k]);
        }
        full[i] = max(full[i], full[i - 1]);
        full[i] = max(full[i], zero[i - 2] + sum[i - 1][ylist[i - 1].size() - 1]);
        full[i] = max(full[i], full[i - 2] + sum[i - 1][ylist[i - 1].size() - 1]);
        for (int t = 1; t < all.size() - 1; t++) {
            int l = lower_bound(ylist[i - 2].begin(), ylist[i - 2].end(), make_pair(all[t], 0LL)) - ylist[i - 2].begin();
            full[i] = max(full[i], dp[1][i - 2][l] + sum[i - 1][ylist[i - 1].size() - 1]);
        }

        long long val0 = 0, val1 = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            int j = lower_bound(ylist[i].begin(), ylist[i].end(), make_pair(all[t], 0LL)) - ylist[i].begin();
            int k = lower_bound(ylist[i - 1].begin(), ylist[i - 1].end(), make_pair(all[t], 0LL)) - ylist[i - 1].begin();
            val0 = max(val0, dp[0][i - 1][k] - sum[i - 1][k]);
            val1 = max(val1, dp[1][i - 1][k] + sum[i][j]);
        }
        for (int t = 1; t < all.size() - 1; t++) {
            int j = lower_bound(ylist[i].begin(), ylist[i].end(), make_pair(all[t], 0LL)) - ylist[i].begin();
            int k = lower_bound(ylist[i - 1].begin(), ylist[i - 1].end(), make_pair(all[t], 0LL)) - ylist[i - 1].begin();
            dp[0][i][j] = max(dp[0][i][j], val0 + sum[i - 1][k]);
            dp[1][i][j] = max(dp[1][i][j], val1 - sum[i][j]);
            dp[1][i][j] = max(dp[1][i][j], full[i - 1] + sum[i][ylist[i].size() - 1] - sum[i][j]);
            dp[0][i][j] = max(dp[0][i][j], zero[i - 2] + sum[i - 1][k]);
            dp[0][i][j] = max(dp[0][i][j], full[i - 2] + sum[i - 1][ylist[i - 1].size() - 1]);
        }
        long long val2 = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            int j = lower_bound(ylist[i].begin(), ylist[i].end(), make_pair(all[t], 0LL)) - ylist[i].begin();
            int k = lower_bound(ylist[i - 1].begin(), ylist[i - 1].end(), make_pair(all[t], 0LL)) - ylist[i - 1].begin();
            int l = lower_bound(ylist[i - 2].begin(), ylist[i - 2].end(), make_pair(all[t], 0LL)) - ylist[i - 2].begin();
            val2 = max(val2, dp[1][i - 2][l]);
            dp[0][i][j] = max(dp[0][i][j], val2 + sum[i - 1][k]);
        }
        long long val3 = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            int j = lower_bound(ylist[i].begin(), ylist[i].end(), make_pair(all[t], 0LL)) - ylist[i].begin();
            int k = lower_bound(ylist[i - 1].begin(), ylist[i - 1].end(), make_pair(all[t], 0LL)) - ylist[i - 1].begin();
            int l = lower_bound(ylist[i - 2].begin(), ylist[i - 2].end(), make_pair(all[t], 0LL)) - ylist[i - 2].begin();
            val3 = max(val3, dp[1][i - 2][l] + sum[i - 1][k]);
            dp[0][i][j] = max(dp[0][i][j], val3);
        }
    }
    long long res = 0;
    res = zero[N + 1];
    return res;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:33:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for (int j = 1; j < ylist[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~~~~~
fish.cpp:39:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for (int j = 0; j < ylist[i].size(); j++) dp[0][i].push_back(0);
      |                         ~~^~~~~~~~~~~~~~~~~
fish.cpp:40:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for (int j = 0; j < ylist[i].size(); j++) dp[1][i].push_back(0);
      |                         ~~^~~~~~~~~~~~~~~~~
fish.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for (int j = 1; j < ylist[0].size() - 1; j++) dp[0][0][j] = -1e18;
      |                     ~~^~~~~~~~~~~~~~~~~~~~~
fish.cpp:43:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for (int j = 1; j < ylist[0].size() - 1; j++) dp[1][0][j] = -1e18;
      |                     ~~^~~~~~~~~~~~~~~~~~~~~
fish.cpp:51:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:59:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:66:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:72:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:78:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:88:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:96:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from fish.cpp:2:
/usr/include/c++/10/bits/stl_algo.h: In instantiation of '_OutputIterator std::__merge(_InputIterator1, _InputIterator1, _InputIterator2, _InputIterator2, _OutputIterator, _Compare) [with _InputIterator1 = __gnu_cxx::__normal_iterator<std::pair<int, long long int>*, std::vector<std::pair<int, long long int> > >; _InputIterator2 = __gnu_cxx::__normal_iterator<std::pair<int, long long int>*, std::vector<std::pair<int, long long int> > >; _OutputIterator = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]':
/usr/include/c++/10/bits/stl_algo.h:4963:37:   required from '_OIter std::merge(_IIter1, _IIter1, _IIter2, _IIter2, _OIter) [with _IIter1 = __gnu_cxx::__normal_iterator<std::pair<int, long long int>*, std::vector<std::pair<int, long long int> > >; _IIter2 = __gnu_cxx::__normal_iterator<std::pair<int, long long int>*, std::vector<std::pair<int, long long int> > >; _OIter = __gnu_cxx::__normal_iterator<int*, std::vector<int> >]'
fish.cpp:47:103:   required from here
/usr/include/c++/10/bits/stl_algo.h:4907:18: error: cannot convert 'std::pair<int, long long int>' to 'int' in assignment
 4907 |        *__result = *__first2;
      |        ~~~~~~~~~~^~~~~~~~~~~
/usr/include/c++/10/bits/stl_algo.h:4912:18: error: cannot convert 'std::pair<int, long long int>' to 'int' in assignment
 4912 |        *__result = *__first1;
      |        ~~~~~~~~~~^~~~~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'constexpr bool __gnu_cxx::__ops::_Iter_less_iter::operator()(_Iterator1, _Iterator2) const [with _Iterator1 = __gnu_cxx::__normal_iterator<std::pair<int, long long int>*, std::vector<std::pair<int, long long int> > >; _Iterator2 = __gnu_cxx::__normal_iterator<int*, std::vector<int> >]':
/usr/include/c++/10/bits/stl_algo.h:4905:14:   required from '_OutputIterator std::__merge(_InputIterator1, _InputIterator1, _InputIterator2, _InputIterator2, _OutputIterator, _Compare) [with _InputIterator1 = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _InputIterator2 = __gnu_cxx::__normal_iterator<std::pair<int, long long int>*, std::vector<std::pair<int, long long int> > >; _OutputIterator = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:4963:37:   required from '_OIter std::merge(_IIter1, _IIter1, _IIter2, _IIter2, _OIter) [with _IIter1 = __gnu_cxx::__normal_iterator<int*, std::vector<int> >; _IIter2 = __gnu_cxx::__normal_iterator<std::pair<int, long long int>*, std::vector<std::pair<int, long long int> > >; _OIter = __gnu_cxx::__normal_iterator<int*, std::vector<int> >]'
fish.cpp:48:94:   required from here
/usr/include/c++/10/bits/predefined_ops.h:43:23: error: no match for 'operator<' (operand types are 'std::pair<int, long long int>' and 'int')
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
 1096 |     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
 1104 |     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from fish.cpp:2:
/usr/include/c++/10/bits/regex.h:1075:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)'
 1075 |     operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1075:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from fish.cpp:2:
/usr/include/c++/10/bits/regex.h:1156:5: 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>&)'
 1156 |     operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1156:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from fish.cpp:2:
/usr/include/c++/10/bits/regex.h:1249:5: 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>&)'
 1249 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1249:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from fish.cpp:2:
/usr/include/c++/10/bits/regex.h:1323:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)'
 1323 |     operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1323:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from fish.cpp:2:
/usr/include/c++/10/bits/regex.h:1417:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1417 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1417:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from fish.cpp:2:
/usr/include/c++/10/bits/regex.h:1492:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)'
 1492 |     operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1492:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from fish.cpp:2:
/usr/include/c++/10/bits/regex.h:1592:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1592 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1592:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:489:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
  489 |     operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:489:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:366:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
  366 |     operator<(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:366:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'std::pair<int, long long int>' is not derived from 'const std::reverse_iterator<_Iterator>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from fish.h:1,
                 from fish.cpp:1:
/usr/include/c++/10/bits/stl_iterato