제출 #145703

#제출 시각아이디문제언어결과실행 시간메모리
145703Minnakhmetov모임들 (IOI18_meetings)C++14
컴파일 에러
0 ms0 KiB
#include "meetings.h" #include <bits/stdc++.h> using namespace std; #define ll long long #define all(aaa) aaa.begin(), aaa.end() const int INF = 1e9; const int N1 = 5005, N2 = 1e5 + 5, K = 21; ll lp[N1][N1], rp[N1][N1]; int n, q; vector<int> a; vector<ll> slow(vector<int> L, vector<int> R) { for (int i = 0; i < n; i++) { ll cur = 0; int mx = a[i]; for (int j = i - 1; j >= 0; j--) { mx = max(mx, a[j]); cur += mx; lp[j][i] = cur; } cur = 0; mx = a[i]; for (int j = i + 1; j < n; j++) { mx = max(mx, a[j]); cur += mx; rp[i][j] = cur; } } vector<ll> ans(q); for (int i = 0; i < q; i++) { ll mn = INF; for (int j = L[i]; j <= R[i]; j++) { mn = min(mn, lp[L[i]][j] + rp[j][R[i]] + a[j]); } ans[i] = mn; } return ans; } struct Node { int mx, lp[K], rp[K], val[K][K]; Node() { for (int i = 0; i < K; i++) { for (int j = 0; j < K; j++) { val[i][j] = INF; } } fill(lp, lp + K, 0); fill(rp, rp + K, 0); mx = 0; } } t[N2 * 4]; void upd(ll &a, ll b) { a = min(a, b); } Node operator + (Node a, Node b) { Node c; c.mx = max(a.mx, b.mx); for (int i = 0; i < K; i++) { c.rp[i] = b.rp[i] + a.rp[max(i, b.mx)]; c.lp[i] = a.lp[i] + b.lp[max(i, a.mx)]; } for (int i = 0; i < K; i++) { for (int j = 0; j < K; j++) { upd(c.val[i][max(j, b.mx)], a.val[i][j] + b.lp[j]); upd(c.val[max(i, a.mx)][j], b.val[i][j] + a.rp[i]); } } return c; } void build(int v, int L, int R) { if (L == R) { t[v].val[a[L]][a[L]] = a[L]; for (int i = 0; i <= a[L]; i++) t[v].lp[i] = t[v].rp[i] = a[L]; for (int i = a[L] + 1; i < K; i++) { t[v].lp[i] = t[v].rp[i] = i; } t[v].mx = a[L]; } else { int m = (L + R) >> 1; build(v * 2, L, m); build(v * 2 + 1, m + 1, R); t[v] = t[v * 2] + t[v * 2 + 1]; } // cout << L << " " << R << " :\n"; // for (int i = 0; i < 2; i++) { // for (int j = 0; j < 2; j++) { // cout << i << " " << j << " = " << t[v].val[i][j] << "\n"; // } // } // cout << "\n\n"; // for (int i = 0; i < 2; i++) // cout << t[v].lp[i] << " "; // cout << "\n"; // for (int i = 0; i < 2; i++) // cout << t[v].rp[i] << " "; // cout << "\n"; // cout << "\n"; } Node que(int l, int r, int v, int L, int R) { if (l > r) return Node(); if (l == L && r == R) return t[v]; int m = (L + R) >> 1; return que(l, min(m, r), v * 2, L, m) + que(max(m + 1, l), r, v * 2 + 1, m + 1, R); } vector<ll> solveWhenLessThan20(vector<int> L, vector<int> R) { build(1, 0, n - 1); vector<ll> ans(q, 0); for (int i = 0; i < q; i++) { auto res = que(L[i], R[i], 1, 0, n - 1); ll mn = INF; for (int x = 0; x < K; x++) { for (int y = 0; y < K; y++) { mn = min(mn, res.val[x][y]); } } ans[i] = mn; } return ans; } std::vector<long long> minimum_costs(std::vector<int> H, std::vector<int> L, std::vector<int> R) { a = H; n = a.size(), q = L.size(); if (n < N1 && q < N1) { return slow(L, R); } return solveWhenLessThan20(L, R); }

컴파일 시 표준 에러 (stderr) 메시지

meetings.cpp: In function 'Node operator+(Node, Node)':
meetings.cpp:78:29: error: cannot bind non-const lvalue reference of type 'long long int&' to an rvalue of type 'long long int'
    upd(c.val[i][max(j, b.mx)], a.val[i][j] + b.lp[j]);
        ~~~~~~~~~~~~~~~~~~~~~^
meetings.cpp:63:6: note:   initializing argument 1 of 'void upd(long long int&, long long int)'
 void upd(ll &a, ll b) {
      ^~~
meetings.cpp:79:29: error: cannot bind non-const lvalue reference of type 'long long int&' to an rvalue of type 'long long int'
    upd(c.val[max(i, a.mx)][j], b.val[i][j] + a.rp[i]);
        ~~~~~~~~~~~~~~~~~~~~~^
meetings.cpp:63:6: note:   initializing argument 1 of 'void upd(long long int&, long long int)'
 void upd(ll &a, ll b) {
      ^~~
meetings.cpp: In function 'std::vector<long long int> solveWhenLessThan20(std::vector<int>, std::vector<int>)':
meetings.cpp:139:31: error: no matching function for call to 'min(long long int&, int&)'
     mn = min(mn, res.val[x][y]);
                               ^
In file included from /usr/include/c++/7/vector:60:0,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:195:5: note: candidate: template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:195:5: note:   template argument deduction/substitution failed:
meetings.cpp:139:31: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
     mn = min(mn, res.val[x][y]);
                               ^
In file included from /usr/include/c++/7/vector:60:0,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:243:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:243:5: note:   template argument deduction/substitution failed:
meetings.cpp:139:31: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
     mn = min(mn, res.val[x][y]);
                               ^
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 meetings.cpp:2:
/usr/include/c++/7/bits/stl_algo.h:3450:5: note: candidate: template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>)
     min(initializer_list<_Tp> __l)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3450:5: note:   template argument deduction/substitution failed:
meetings.cpp:139:31: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
     mn = min(mn, res.val[x][y]);
                               ^
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 meetings.cpp:2:
/usr/include/c++/7/bits/stl_algo.h:3456:5: note: candidate: template<class _Tp, class _Compare> constexpr _Tp std::min(std::initializer_list<_Tp>, _Compare)
     min(initializer_list<_Tp> __l, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3456:5: note:   template argument deduction/substitution failed:
meetings.cpp:139:31: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
     mn = min(mn, res.val[x][y]);
                               ^