Submission #1010054

#	Time	Username	Problem	Language	Result	Execution time	Memory
1010054		overwatch9	Shortcut (IOI16_shortcut)	C++17	Compilation error	0 ms	0 KiB

shortcut

#include "shortcut.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
vector <vector <pair <int, int>>> adj;
int N;
pair <int, ll> dijkstra(int s) {
    priority_queue <pair <ll, int>> pq;
    vector <ll> dis(N+1, 1e17);
    vector <bool> processed(N+1);
    dis[s] = 0;
    pq.push({0, s});
    int node = 0l
    ll mx = 0;
    while (!pq.empty()) {
        s = pq.top().second;
        pq.pop();
        if (processed[s])
            continue;
        processed[s] = true;
        if (mx < dis[s]) {
            mx = dis[s];
            node = s;
        }
        for (auto i : adj[s]) {
            if (dis[i.first] > dis[s] + i.second) {
                dis[i.first] = dis[s] + i.second;
                pq.push({-dis[i.first], i.first});
            }
        }
    }
    return {node, mx};
}
long long find_shortcut(int n, vector<int> l, vector<int> d, int c)
{
    adj.resize(n * 2 + 5);
    for (int i = 0; i+1 < n; i++) {
        adj[i].push_back({i+1, l[i]});
        adj[i+1].push_back({i, l[i]});
    }
    int ogn = n;
    for (int i = 0; i < ogn; i++) {
        if (d[i] == 0)
            continue;
        adj[i].push_back({n, d[i]});
        adj[n].push_back({i, d[i]});
        n++;
    }
    N = n;
    pair <int, ll> res = dijkstra(0);
    res = dijkstra(res.first);
    ll ans = res.second;
    for (int i = 0; i < ogn; i++) {
        for (int j = i+1; j < ogn; j++) {
            adj[i].push_back({j, c});
            adj[j].push_back({i, c});
            res = dijkstra(0);
            res = dijkstra(res.first);
            ans = min(ans, res.second);
            adj[i].pop_back();
            adj[j].pop_back();
        }
    }
    return ans;
}
// int main() {
//     int n;
//     cin >> n;
//     vector <int> l(n), d(n);
//     for (int i = 0; i < n-1; i++)
//         cin >> l[i];
//     for (int i = 0; i < n; i++)
//         cin >> d[i];
//     int c;
//     cin >> c;
//     cout << find_shortcut(n, l, d, c) << '\n';
// }

Compilation message (stderr)

shortcut.cpp: In function 'std::pair<int, long long int> dijkstra(int)':
shortcut.cpp:14:5: error: expected ',' or ';' before 'll'
   14 |     ll mx = 0;
      |     ^~
shortcut.cpp:21:13: error: 'mx' was not declared in this scope
   21 |         if (mx < dis[s]) {
      |             ^~
shortcut.cpp:32:19: error: 'mx' was not declared in this scope
   32 |     return {node, mx};
      |                   ^~
shortcut.cpp:32:21: error: could not convert '{node, <expression error>}' from '<brace-enclosed initializer list>' to 'std::pair<int, long long int>'
   32 |     return {node, mx};
      |                     ^
      |                     |
      |                     <brace-enclosed initializer list>