제출 #752999

#제출 시각아이디문제언어결과실행 시간메모리
752999MohamedFaresNebili사이버랜드 (APIO23_cyberland)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; using ll = long long; using pi = pair<double, pair<int, int>>; const ll M = 1000000000000000005; const double epsilon = 0.000001; double solve(int n, int m, int k, int h, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) { double d[n]; d[0] = 0; for(int l = 1; l < n; l++) d[l] = M; vector<pair<int, int>> adj[n]; for(int l = 0; l < m; l++) { adj[x[l]].push_back({y[l], c[l]}); adj[y[l]].push_back({x[l], c[l]}); } priority_queue<pi, vector<pi>, greater<pi>> pq; pq.push({0, {k + 1, 0}}); while(!pq.empty()) { double w = pq.top().first; int u = pq.top().second.second; int t = pq.top().second.first; pq.pop(); for(auto v : adj[u]) { double D = w + v.second; if(arr[v.first] == 0) D = 0; if(arr[v].first != 2) { if(d[v.first] > D) { d[v.first] = D; if(v.first != h) pq.push({d[v.first], {t, v.first}}); } } else { if(t > 0) D /= 2.0, t--; else continue; if(d[v.first] > D) { d[v.first] = D; if(v.first != h) pq.push({d[v.first], {t, v.first}}); } } } } if(d[h] == M) return -1; return d[h]; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

cyberland.cpp: In function 'double solve(int, int, int, int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
cyberland.cpp:28:27: error: no match for 'operator[]' (operand types are 'std::vector<int>' and 'std::pair<int, int>')
   28 |                     if(arr[v].first != 2) {
      |                           ^
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from cyberland.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1043:7: note: candidate: 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::reference = int&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
 1043 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1043:28: note:   no known conversion for argument 1 from 'std::pair<int, int>' to 'std::vector<int>::size_type' {aka 'long unsigned int'}
 1043 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |                  ~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1061:7: note: candidate: 'std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) const [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::const_reference = const int&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
 1061 |       operator[](size_type __n) const _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1061:28: note:   no known conversion for argument 1 from 'std::pair<int, int>' to 'std::vector<int>::size_type' {aka 'long unsigned int'}
 1061 |       operator[](size_type __n) const _GLIBCXX_NOEXCEPT
      |                  ~~~~~~~~~~^~~