oj.uz

Submission #701791

# Submission time Handle Problem Language Result Execution time Memory
701791 2023-02-22T06:30:44 Z Do_you_copy Ceste (COCI17_ceste) C++17
160 / 160
 584 ms 25336 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define faster ios_base::sync_with_stdio(0); cin.tie(0);
#define pb push_back

using namespace std;
using ll = long long;
using pii = pair <int, int>;

const int thrs = 4e6;
const int maxN = 2004 + 1;
const ll inf = 0x3f3f3f3f3f3f3f3f;
//const int Mod =
int n, m;
struct TEdge{
    ll u, t, c;
};
vector <TEdge> adj[maxN];

struct TPQ{
    ll u, t, c;
    bool operator < (const TPQ &other) const{
        if (c == other.c) return t > other.t;
        return c > other.c;
    }
};
ll d[maxN];
int t[maxN];

void Init(){
    cin >> n >> m;
    for (int i = 1; i <= m; ++i){
        int u, v, t, c;
        cin >> u >> v >> t >> c;
        adj[u].pb({v, t, c});
        adj[v].pb({u, t, c});
    }
    priority_queue <TPQ> PQ;
    PQ.push({1, 0, 0});
    memset(d, 0x3f, sizeof(d));
    memset(t, 0x3f, sizeof(t));
    d[1] = t[1] = 0;
    while (!PQ.empty()){
        auto u = PQ.top();
        PQ.pop();
        d[u.u] = min(d[u.u], u.t * u.c);
        if (t[u.u] < u.t) continue;
        t[u.u] = u.t;
        for (auto i: adj[u.u]){
            if (u.t + i.t > thrs) continue;
            PQ.push({i.u, u.t + i.t, u.c + i.c});
        }
    }
    for (int i = 2; i <= n; ++i){
        if (d[i] == inf){
            cout << -1 << "\n";
        }
        else cout << d[i] << "\n";
    }
}

#define taskname "test"
signed main(){
    faster
    if (fopen(taskname ".inp", "r")){
        freopen(taskname ".inp", "r", stdin);
        freopen(taskname ".out", "w", stdout);
    }
    int tt = 1;
    //cin >> tt;
    while (tt--){
        Init();
    }
    if (fopen("timeout.txt", "r")){
        ofstream timeout("timeout.txt");
        cerr << "Time elapsed: " << signed(double(clock()) / CLOCKS_PER_SEC * 1000) << "ms\n";
        timeout << signed(double(clock()) / CLOCKS_PER_SEC * 1000);
        timeout.close();
    }
}

Compilation message

ceste.cpp: In function 'int main()':
ceste.cpp:67:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   67 |         freopen(taskname ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ceste.cpp:68:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |         freopen(taskname ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 3 ms 724 KB Output is correct
3 Correct 4 ms 788 KB Output is correct

Subtask #6
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 2028 KB Output is correct
2 Correct 49 ms 3656 KB Output is correct
3 Correct 63 ms 3792 KB Output is correct

Subtask #7
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 155 ms 3752 KB Output is correct
2 Correct 584 ms 25336 KB Output is correct
3 Correct 5 ms 916 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 1452 KB Output is correct
2 Correct 325 ms 12936 KB Output is correct
3 Correct 9 ms 756 KB Output is correct

Subtask #9
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 196 ms 1476 KB Output is correct
2 Correct 204 ms 3772 KB Output is correct
3 Correct 182 ms 3648 KB Output is correct

Subtask #10
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 3660 KB Output is correct
2 Correct 182 ms 3648 KB Output is correct
3 Correct 256 ms 3776 KB Output is correct