Submission #1225899

#TimeUsernameProblemLanguageResultExecution timeMemory
1225899sokratisiSwapping Cities (APIO20_swap)C++20
Compilation error
0 ms0 KiB
#include "swap.h" #include <vector> using namespace std; // zero indexing int n, m, dist[100005], p[100005], dumbdist[100005]; bool vis[100005]; vector<vector<pair<int, int>>> adj[100005]; void dijkstra(int s) { for (int i = 0; i < n; i++) dist[i] = 1e9+5; for (int i = 0; i < n; i++) vis[i] = false; priority_queue<pair<int, int>> q; dist[s] = 0; q.push({0, s}); p[s] = -1; while(!q.empty()) { int node = q.top().second; if (vis[node]) continue; vis[node] = true; for (auto u: adj[node]) { if (!vis[u]) { if (max(dist[node],u.second) < dist[u.first]) { dist[u.first] = max(dist[node],u.second); p[u] = node; q.push({-dist[u.first], u.first}); } } } } } void help_dumbdijkstra(int s, int nxt) { // put final vertex here if (p[s] != -1) dumbdijkstra(p[s], s); for (auto u: adj[s]) { if (u.first != p[s] && u.first != nxt) { dumbdist[s] = min(max(dist[s], u.second), max(dist[u.first], u.second)); } } } void dumbdijkstra(int s) { // put final vertex here for (int i = 0; i < n; i++) dumbdist[i] = 1e9+5; help_dumbdijkstra(s, -1); } void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) { n = N; m = M; for (int i = 0; i < m; i++) { adj[u[i]].push_back({v[i], w[i]}); adj[v[i]].push_back({u[i], w[i]}); } } int getMinimumFuelCapacity(int x, int y) { dijkstra(x); dumbdijkstra(y); if (dumbdist[y] > 1e9) return -1; return dumbdist[y]; }

Compilation message (stderr)

swap.cpp: In function 'void dijkstra(int)':
swap.cpp:15:5: error: 'priority_queue' was not declared in this scope
   15 |     priority_queue<pair<int, int>> q;
      |     ^~~~~~~~~~~~~~
swap.cpp:2:1: note: 'std::priority_queue' is defined in header '<queue>'; did you forget to '#include <queue>'?
    1 | #include "swap.h"
  +++ |+#include <queue>
    2 | #include <vector>
swap.cpp:15:33: error: expected primary-expression before '>' token
   15 |     priority_queue<pair<int, int>> q;
      |                                 ^~
swap.cpp:15:36: error: 'q' was not declared in this scope
   15 |     priority_queue<pair<int, int>> q;
      |                                    ^
swap.cpp:24:21: error: no match for 'operator[]' (operand types are 'bool [100005]' and 'std::vector<std::pair<int, int> >')
   24 |             if (!vis[u]) {
      |                     ^
swap.cpp:25:38: error: 'class std::vector<std::pair<int, int> >' has no member named 'second'
   25 |                 if (max(dist[node],u.second) < dist[u.first]) {
      |                                      ^~~~~~
swap.cpp:25:55: error: 'class std::vector<std::pair<int, int> >' has no member named 'first'
   25 |                 if (max(dist[node],u.second) < dist[u.first]) {
      |                                                       ^~~~~
swap.cpp:26:28: error: 'class std::vector<std::pair<int, int> >' has no member named 'first'
   26 |                     dist[u.first] = max(dist[node],u.second);
      |                            ^~~~~
swap.cpp:26:54: error: 'class std::vector<std::pair<int, int> >' has no member named 'second'
   26 |                     dist[u.first] = max(dist[node],u.second);
      |                                                      ^~~~~~
swap.cpp:27:22: error: no match for 'operator[]' (operand types are 'int [100005]' and 'std::vector<std::pair<int, int> >')
   27 |                     p[u] = node;
      |                      ^
swap.cpp:28:37: error: 'class std::vector<std::pair<int, int> >' has no member named 'first'
   28 |                     q.push({-dist[u.first], u.first});
      |                                     ^~~~~
swap.cpp:28:47: error: 'class std::vector<std::pair<int, int> >' has no member named 'first'
   28 |                     q.push({-dist[u.first], u.first});
      |                                               ^~~~~
swap.cpp: In function 'void help_dumbdijkstra(int, int)':
swap.cpp:36:21: error: 'dumbdijkstra' was not declared in this scope; did you mean 'dumbdist'?
   36 |     if (p[s] != -1) dumbdijkstra(p[s], s);
      |                     ^~~~~~~~~~~~
      |                     dumbdist
swap.cpp:38:15: error: 'class std::vector<std::pair<int, int> >' has no member named 'first'
   38 |         if (u.first != p[s] && u.first != nxt) {
      |               ^~~~~
swap.cpp:38:34: error: 'class std::vector<std::pair<int, int> >' has no member named 'first'
   38 |         if (u.first != p[s] && u.first != nxt) {
      |                                  ^~~~~
swap.cpp:39:46: error: 'class std::vector<std::pair<int, int> >' has no member named 'second'
   39 |             dumbdist[s] = min(max(dist[s], u.second), max(dist[u.first], u.second));
      |                                              ^~~~~~
swap.cpp:39:66: error: 'class std::vector<std::pair<int, int> >' has no member named 'first'
   39 |             dumbdist[s] = min(max(dist[s], u.second), max(dist[u.first], u.second));
      |                                                                  ^~~~~
swap.cpp:39:76: error: 'class std::vector<std::pair<int, int> >' has no member named 'second'
   39 |             dumbdist[s] = min(max(dist[s], u.second), max(dist[u.first], u.second));
      |                                                                            ^~~~~~
swap.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
swap.cpp:53:13: error: 'u' was not declared in this scope
   53 |         adj[u[i]].push_back({v[i], w[i]});
      |             ^
swap.cpp:53:30: error: 'v' was not declared in this scope
   53 |         adj[u[i]].push_back({v[i], w[i]});
      |                              ^
swap.cpp:53:36: error: 'w' was not declared in this scope
   53 |         adj[u[i]].push_back({v[i], w[i]});
      |                                    ^