Submission #1123358

#	Time	Username	Problem	Language	Result	Execution time	Memory
1123358		LTTrungCHL	Voting Cities (NOI22_votingcity)	C++20	45 / 100	1092 ms	5660 KiB

Main

///***LTT***///
/// ->NHAT QUOC GIA<- ///
#include<bits/stdc++.h>
//#pragma GCC optimize ("O3")
//#pragma GCC optimize ("unroll-loops")
//#pragma GCC target("popcnt")
//#define int long long
#define endl "\n"
#define F first
#define S second
#define pb push_back
using namespace std;
//vector <int> lg2;
//void LOG_ARR(int n){
//    lg2.resize(n + 3);
//    for (int i = 1;i <= n;++i){
//        lg2[i] = __lg(i);
//    }
//}
const long long oo = 1e9+7;
const int N = 5000 + 10;
int n, m, k;
int t[N];
pair <int, int> p[7];
vector <pair <int, int>> adj[N];
long long dis[N][34];
void solve(){
    cin >> n >> m >> k;
    for (int i = 1;i <= k;++i){
        cin >> t[i];
    }
    for (int i = 1;i <= m;++i){
        int u, v, w;
        cin >> u >> v >> w;
        adj[u].pb({v, w});
    }
    int q;
    cin >> q;
    while (q--){
        int s;
        cin >> s;
        int sl = 0;
        for (int i = 1;i <= 5;++i){
            int tmp;
            cin >> tmp;
            if (tmp != -1){
                p[++sl] = {tmp, i};
            }
        }
        for (int i = 0;i < n;++i){
            for (int j = 0;j < (1 << sl);++j){
                dis[i][j] = oo * oo;
            }
        }
        dis[s][0] = 0;
        priority_queue <pair<long long,pair <int, int>>> pq;
        pq.push({0,{s, 0}});
        while (!pq.empty()){
            int u = pq.top().S.F;
            int mask = pq.top().S.S;
            long long d = -pq.top().F;
            pq.pop();
            if (d > dis[u][mask]) continue;
            for (int i = 0;i < adj[u].size();++i){
                int v = adj[u][i].F;
                long long w = adj[u][i].S;
                if (d + w < dis[v][mask]){
                    dis[v][mask] = d + w;
                    pq.push({-dis[v][mask], {v, mask}});
                }
                for (int j = 0;j < sl;++j){
                    if ((1 << j) & mask) continue;
                    int cost = p[j + 1].F;
                    int pos = p[j + 1].S;
                    if (1ll * d + w + cost - (1ll * w/10 * pos) < dis[v][mask | (1 << j)]){
                        dis[v][mask | (1 << j)] = 1ll * d + w + cost - (1ll * w/10 * pos);
                        pq.push({-dis[v][mask | (1 << j)], {v, mask | (1 << j)}});
                    }
                }
            }
        }
        long long mi = oo * oo;
        for (int i = 1;i <= k;++i){
            for (int j = 0;j < (1 << sl);++j){
                mi = min(mi, dis[t[i]][j]);
            }
        }
        cout << (mi == oo * oo ? - 1 : mi) <<"\n";
    }
    return;
}
int main(){
    ios_base::sync_with_stdio(NULL);
    cin.tie(NULL);
    cout.tie(NULL);
    if (fopen("npt.inp", "r")){
        freopen("npt.inp", "r", stdin);
        freopen("npt.out", "w", stdout);
    }
//    int t;
//    cin >> t;

//    while(t--){
    solve();
//    }
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:97:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   97 |         freopen("npt.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:98:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   98 |         freopen("npt.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 0 / 5
• Subtask 6: 10 / 10
• Subtask 7: 15 / 15
• Subtask 8: 0 / 50