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Submission #1106743

# Submission time Handle Problem Language Result Execution time Memory
1106743 2024-10-31T02:33:40 Z ro9669 Voting Cities (NOI22_votingcity) C++17
45 / 100
 247 ms 2896 KB 
 #include <bits/stdc++.h>
 #define fi first
 #define se second
 #define all(v) v.begin() , v.end()
 #define sz(v) int(v.size())
 #define unq(v) sort(all(v)); v.resize(unique(all(v)) - v.begin());
 using namespace std;

 typedef long long ll;
 typedef pair<int , int> ii;
 typedef pair<long long , int> lli;

 const int maxN = int(5e3)+7;
 const ll inf = ll(1e18)+7;

 int n , m , k , q , en[maxN] , c[5];
 ll dp[maxN][1<<5] , d[maxN];
 vector<ii> g[maxN] , rev_g[maxN];
 vector<int> nxt[maxN] , topo;
 bool vis[maxN];

void dfs(int u){
    vis[u] = 1;
    for (int v : nxt[u]){
        if (vis[v] == 0){
            dfs(v);
        }
    }
    topo.push_back(u);
}

void reset(){
    for (int u = 0 ; u < n ; u++){
        d[u] = inf;
        nxt[u].clear();
        vis[u] = 0;
        for (int mask = 0 ; mask < (1<<5) ; mask++) dp[u][mask] = inf;
    }
    topo.clear();
}

void solve(){
    cin >> n >> m >> k;
    for (int i = 0 ; i < k ; i++){
        cin >> en[i];
    }
    for (int i = 0 ; i < m ; i++){
        int u , v , w;
        cin >> u >> v >> w;
        g[u].push_back({v , w});
        rev_g[v].push_back({u , w});
    }
    cin >> q;
    while (q--){
        int st; cin >> st;
        for (int i = 0 ; i < 5 ; i++) cin >> c[i];
        reset();
        d[st] = 0;
        priority_queue<lli , vector<lli> , greater<lli>> pq;
        pq.push({d[st] , st});
        while (pq.empty() == 0){
            auto it = pq.top(); pq.pop();
            int u = it.se;
            if (d[u] != it.fi) continue;
            for (auto e : g[u]){
                int v = e.fi;
                int w = e.se;
                if (d[v] > d[u] + 1ll * w){
                    d[v] = d[u] + 1ll * w;
                    pq.push({d[v] , v});
                }
            }
        }
        for (int u = 0 ; u < n ; u++){
            for (auto e : g[u]){
                int v = e.fi;
                int w = e.se;
                if (d[u] + 1ll * w == d[v]){
                    nxt[u].push_back(v);
                }
            }
        }
        dfs(st);
        reverse(all(topo));
        dp[st][0] = 0;
        for (int v : topo){
            for (auto e : rev_g[v]){
                int u = e.fi;
                int w = e.se;
                for (int mask = 0 ; mask < (1<<5) ; mask++){
                    dp[v][mask] = min(dp[v][mask] , dp[u][mask] + 1ll * w);
                    for (int i = 0 ; i < 5 ; i++){
                        if ((mask>>i)&1) continue;
                        if (c[i] == -1) continue;
                        dp[v][mask ^ (1<<i)] = min(dp[v][mask ^ (1<<i)] , dp[u][mask] + 1ll * c[i] + (1ll * (10 - i - 1) * w) / 10);
                    }
                }
            }
        }
        ll ans = inf;
        for (int i = 0 ; i < k ; i++){
            for (int mask = 0 ; mask < (1<<5) ; mask++){
                ans = min(ans , dp[en[i]][mask]);
            }
        }
        if (ans == inf) ans = -1;
        cout << ans << "\n";
    }
}

#define name "A"

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    if (fopen(name".INP" , "r")){
        freopen(name".INP" , "r" , stdin);
        freopen(name".OUT" , "w" , stdout);
    }
    int t = 1; //cin >> t;
    while (t--) solve();
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:116:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  116 |         freopen(name".INP" , "r" , stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:117:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |         freopen(name".OUT" , "w" , stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2384 KB Output is correct
2 Correct 3 ms 2640 KB Output is correct
3 Correct 11 ms 2640 KB Output is correct
4 Correct 1 ms 592 KB Output is correct
5 Correct 1 ms 592 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2384 KB Output is correct
2 Correct 3 ms 2640 KB Output is correct
3 Correct 11 ms 2640 KB Output is correct
4 Correct 1 ms 592 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 164 ms 2604 KB Output is correct
7 Correct 72 ms 2640 KB Output is correct
8 Correct 218 ms 2640 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 1 ms 592 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2384 KB Output is correct
2 Correct 3 ms 2640 KB Output is correct
3 Correct 11 ms 2640 KB Output is correct
4 Correct 1 ms 592 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 164 ms 2604 KB Output is correct
7 Correct 72 ms 2640 KB Output is correct
8 Correct 218 ms 2640 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 174 ms 2612 KB Output is correct
12 Correct 71 ms 2808 KB Output is correct
13 Correct 212 ms 2640 KB Output is correct
14 Correct 1 ms 592 KB Output is correct
15 Correct 1 ms 592 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2384 KB Output is correct
2 Correct 3 ms 2640 KB Output is correct
3 Correct 11 ms 2640 KB Output is correct
4 Correct 1 ms 592 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 8 ms 2384 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 8 ms 2640 KB Output is correct

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2384 KB Output is correct
2 Correct 3 ms 2640 KB Output is correct
3 Correct 11 ms 2640 KB Output is correct
4 Correct 1 ms 592 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 164 ms 2604 KB Output is correct
7 Correct 72 ms 2640 KB Output is correct
8 Correct 218 ms 2640 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 8 ms 2384 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 8 ms 2640 KB Output is correct
14 Correct 247 ms 2396 KB Output is correct
15 Correct 89 ms 2896 KB Output is correct
16 Incorrect 238 ms 2888 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 196 ms 2604 KB Output is correct
2 Correct 191 ms 2604 KB Output is correct
3 Correct 72 ms 2808 KB Output is correct
4 Correct 238 ms 2696 KB Output is correct

Subtask #7
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 848 KB Output is correct
2 Correct 21 ms 848 KB Output is correct
3 Correct 2 ms 1016 KB Output is correct
4 Correct 13 ms 876 KB Output is correct
5 Correct 19 ms 848 KB Output is correct
6 Correct 2 ms 848 KB Output is correct
7 Correct 40 ms 848 KB Output is correct
8 Correct 23 ms 848 KB Output is correct

Subtask #8
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2384 KB Output is correct
2 Correct 3 ms 2640 KB Output is correct
3 Correct 11 ms 2640 KB Output is correct
4 Correct 1 ms 592 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 164 ms 2604 KB Output is correct
7 Correct 72 ms 2640 KB Output is correct
8 Correct 218 ms 2640 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 174 ms 2612 KB Output is correct
12 Correct 71 ms 2808 KB Output is correct
13 Correct 212 ms 2640 KB Output is correct
14 Correct 1 ms 592 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 8 ms 2384 KB Output is correct
17 Correct 5 ms 2808 KB Output is correct
18 Correct 8 ms 2640 KB Output is correct
19 Correct 247 ms 2396 KB Output is correct
20 Correct 89 ms 2896 KB Output is correct
21 Incorrect 238 ms 2888 KB Output isn't correct
22 Halted 0 ms 0 KB -