Submission #772605

#	Time	Username	Problem	Language	Result	Execution time	Memory
772605		RecursiveCo	Commuter Pass (JOI18_commuter_pass)	C++14	24 / 100	150 ms	262144 KiB

commuter_pass

// CF template, version 3.0

#include <bits/stdc++.h>

using namespace std;

#define improvePerformance ios_base::sync_with_stdio(false); cin.tie(0)
#define getTest int t; cin >> t
#define eachTest for (int _var=0;_var<t;_var++)
#define get(name) int (name); cin >> (name)
#define out(o) cout << (o)
#define getList(cnt, name) vector<int> (name); for (int _=0;_<(cnt);_++) { get(a); (name).push_back(a); }
#define sortl(name) sort((name).begin(), (name).end())
#define rev(name) reverse((name).begin(), (name).end())
#define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
#define decision(b) if (b){out("YES");}else{out("NO");}

#define int long long int

vector<vector<pair<int, int>>> adjList;
int n;

vector<int> dijkstra(int v) {
    vector<bool> visited(n, false);
    vector<int> shortest(n, 1e18);
    priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;
    pq.push({0, v});
    while (!pq.empty()) {
        auto top = pq.top();
        pq.pop();
        if (visited[top.second]) continue;
        visited[top.second] = true;
        shortest[top.second] = min(shortest[top.second], top.first);
        for (auto con: adjList[top.second]) {
            if (!visited[con.first]) pq.push({shortest[top.second] + con.second, con.first});
        }
    }
    return shortest;
}

signed main() {
    improvePerformance;
    cin >> n;
    get(m);
    get(s);
    get(t);
    get(u);
    get(v);
    s--;
    t--;
    u--;
    v--;
    adjList.resize(n);
    forto(m, i) {
        get(a);
        get(b);
        get(w);
        a--;
        b--;
        adjList[a].push_back({b, w});
        adjList[b].push_back({a, w});
    }

    vector<vector<int>> d(n, vector<int>(n, 1e18));
    forto(n, i) d[i][i] = 0;
    forto(n, i) for (auto con: adjList[i]) d[i][con.first] = con.second;
    forto(n, k) {
        forto(n, i) {
            forto(n, j) {
                d[i][j] = min(d[i][j], d[i][k] + d[k][j]);
            }
        }
    }
    int ans = d[u][v];
    forto(n, x) {
        forto(n, y) {
            if (d[s][x] + d[x][y] + d[y][t] == d[s][t]) {
                ans = min(ans, min(d[u][x] + d[y][v], d[u][y] + d[x][v]));
            }
        }
    }
    out(ans);
}

Compilation message (stderr)

commuter_pass.cpp: In function 'int main()':
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 'm' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:44:5: note: in expansion of macro 'get'
   44 |     get(m);
      |     ^~~
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 's' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:45:5: note: in expansion of macro 'get'
   45 |     get(s);
      |     ^~~
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 't' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:46:5: note: in expansion of macro 'get'
   46 |     get(t);
      |     ^~~
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 'u' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:47:5: note: in expansion of macro 'get'
   47 |     get(u);
      |     ^~~
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 'v' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:48:5: note: in expansion of macro 'get'
   48 |     get(v);
      |     ^~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:54:5: note: in expansion of macro 'forto'
   54 |     forto(m, i) {
      |     ^~~~~
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 'a' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:55:9: note: in expansion of macro 'get'
   55 |         get(a);
      |         ^~~
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 'b' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:56:9: note: in expansion of macro 'get'
   56 |         get(b);
      |         ^~~
commuter_pass.cpp:10:23: warning: unnecessary parentheses in declaration of 'w' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
commuter_pass.cpp:57:9: note: in expansion of macro 'get'
   57 |         get(w);
      |         ^~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:65:5: note: in expansion of macro 'forto'
   65 |     forto(n, i) d[i][i] = 0;
      |     ^~~~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:66:5: note: in expansion of macro 'forto'
   66 |     forto(n, i) for (auto con: adjList[i]) d[i][con.first] = con.second;
      |     ^~~~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'k' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:67:5: note: in expansion of macro 'forto'
   67 |     forto(n, k) {
      |     ^~~~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:68:9: note: in expansion of macro 'forto'
   68 |         forto(n, i) {
      |         ^~~~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:69:13: note: in expansion of macro 'forto'
   69 |             forto(n, j) {
      |             ^~~~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'x' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:75:5: note: in expansion of macro 'forto'
   75 |     forto(n, x) {
      |     ^~~~~
commuter_pass.cpp:15:35: warning: unnecessary parentheses in declaration of 'y' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
commuter_pass.cpp:76:9: note: in expansion of macro 'forto'
   76 |         forto(n, y) {
      |         ^~~~~

• Subtask 1: 0 / 16
• Subtask 2: 0 / 15
• Subtask 3: 24 / 24
• Subtask 4: 0 / 45