제출 #760974

#제출 시각아이디문제언어결과실행 시간메모리
760974drdilyor메기 농장 (IOI22_fish)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "fish.h" using namespace std; using ll = long long; ll max_weights( int n, int m, vector<int> x, vector<int> y, vector<int> w) { vector arr(n+1, vector<pair<int,ll>>()); for (int i = 0; i < m; i++) { arr[x[i]+1].emplace_back(y[i], w[i]); } for (int i = 0; i < n; i++) sort(arr[i].begin(), arr[i].end()); auto pref = arr; for (int i = 0; i <= n; i++) { for (int j = 1; j < (int)pref[i].size(); j++) { pref[i][j].second += pref[i][j-1].second; } } auto sum_right = [&](int c, int right)->ll{ int l = -1, r = pref[c].size(); while (l < r-1) { int mid = (l+r) / 2; if (pref[c][mid].first <= right) l = mid; else r= mid; } return l==-1 ? 0 : pref[c][l].second; }; auto sum = [&](int c, int l, int r) { // [l, r] if (l <= r) return sum_right(c, r) - sum_right(c, l-1); else return 0ll; }; vector<vector<int>> byx(n+2), used(n+1); for (int i = 0; i < m; i++) byx[x[i]+1].push_back(y[i]); for (int i = 0; i <= n; i++) { if (i) for (int j : byx[i-1]) used[i].push_back(j+1); if (n-i) for (int j : byx[i+1]) used[i].push_back(j+1); used[i].push_back(0); sort(used[i].begin(), used[i].end()); } vector memo(2, vector(n+1, vector<ll>())); for (int i = 1; i <= n; i++) { memo[0][i].assign(used[i-1].size(), -1); memo[1][i].assign(used[i-1].size(), -1); } auto dp = [&](auto& dp, bool inc, int c, int h2_key)->ll{ if (c == n+1) return 0; int h2 = used[c-1][h2_key]; ll& res = memo[inc][c][h2_key]; if (res!=-1) return res; res = 0; if (inc) { for (int j = 0; j < (int)used[c].size(); j++) { int h3 = used[c][j]; if (h3 < h2) continue; ll val = sum(c-1, 0, h3-1); res = max(res, val + dp(dp, true, c+1, j)); res = max(res, val + dp(dp, false, c+1, j)); } res -= sum(c-1, 0, h2-1); } else { for (int j = 0; j < (int)used[c].size(); j++) { int h3 = used[c][j]; if (h3 > h2) break; ll val = sum(c, 0, h2-1); res = max(res, val + dp(dp, false, c+1, j)); } res -= sum(c, 0, h3-1); } res = max(res, dp(dp, true, c+1, 0)); res = max(res, 0); return res; }; ll res = dp(dp, true, 1, 0); return res; }

컴파일 시 표준 에러 (stderr) 메시지

fish.cpp: In lambda function:
fish.cpp:75:30: error: 'h3' was not declared in this scope; did you mean 'h2'?
   75 |             res -= sum(c, 0, h3-1);
      |                              ^~
      |                              h2
fish.cpp:78:25: error: no matching function for call to 'max(ll&, int)'
   78 |         res = max(res, 0);
      |                         ^
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 fish.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:
fish.cpp:78:25: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   78 |         res = max(res, 0);
      |                         ^
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 fish.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:
fish.cpp:78:25: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   78 |         res = max(res, 0);
      |                         ^
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: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:
fish.cpp:78:25: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   78 |         res = max(res, 0);
      |                         ^
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: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:
fish.cpp:78:25: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   78 |         res = max(res, 0);
      |                         ^