oj.uz

Submission #967089

# Submission time Handle Problem Language Result Execution time Memory
967089 2024-04-21T06:02:39 Z angella Olympic Bus (JOI20_ho_t4) C++17
100 / 100
 908 ms 21732 KB 
/*
    IN THE NAME OF GOD
*/
#include <bits/stdc++.h>

// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
typedef long double ld;

#define F                                      first
#define S                                      second
#define Mp                                     make_pair
#define pb                                     push_back
#define pf                                     push_front
#define size(x)                                ((ll)x.size())
#define all(x)                                 (x).begin(),(x).end()
#define kill(x)		                           cout << x << '\n', exit(0);
#define fuck(x)                                cout << "(" << #x << " , " << x << ")" << endl
#define endl                                   '\n'

const int N = 3e5+23, lg = 18;
ll Mod = 1e9+7; //998244353;

inline ll MOD(ll a, ll mod=Mod) {a%=mod; (a<0)&&(a+=mod); return a;}
inline ll poww(ll a, ll b, ll mod=Mod) {
    ll ans = 1;
    a=MOD(a, mod);
    while (b) {
        if (b & 1) ans = MOD(ans*a, mod);
        b >>= 1;
        a = MOD(a*a, mod);
    }
    return ans;
}

int n, m, mark[N];
ll ev[N], eu[N], dist[N], c[N], d[N], f[205][205];
vector<int> adj[N];

ll solve(int rt, int e) {
    fill(dist, dist+n+2, 1e18);
    fill(mark, mark+n+2, 0);
    priority_queue<pll, vector<pll>,greater<pll>> pq;
    pq.push({0, rt});
    while(size(pq) > 0) {
        pll v = pq.top(); pq.pop();
        if(mark[v.S]) continue;
        mark[v.S]=1, dist[v.S] = v.F;
        for(int u : adj[v.S]) {
            if(u!=e&&mark[eu[u]]==0) pq.push({v.F+c[u], eu[u]});
        }
        if(v.S == eu[e]) pq.push({v.F+c[e], ev[e]});
    }
    if(rt == 1) return dist[n];
    return dist[1];
}

int main () {
	ios_base::sync_with_stdio(false), cin.tie(0);

	cin>>n>>m;
    for(int i=1; i<=n; i++) {
        for(int j=1; j<=n; j++) if(i!=j) f[i][j] = 1e18;
    }
    for(int i=1; i<=m; i++) {
        cin>>ev[i]>>eu[i]>>c[i]>>d[i];
        adj[ev[i]].pb(i);
        f[ev[i]][eu[i]] = min(c[i], f[ev[i]][eu[i]]);
    }
    for(int i=1; i<=n; i++) {
        for(int j=1; j<=n; j++) {
            for(int k=1; k<=n; k++) {
                f[j][k] = min(f[j][i]+f[i][k], f[j][k]);
            }
        }
    }

    ll ans = f[1][n] + f[n][1];
    for(int i=1; i<=m; i++) {
        if(min(f[1][n],f[1][eu[i]]+f[ev[i]][n]+c[i])+min(f[n][1],f[n][eu[i]]+f[ev[i]][1]+c[i])+d[i] < ans) {
            ans = min(ans, solve(1,i)+solve(n,i)+d[i]);
        }
    }

    cout<<(ans>=1e11 ? -1 : ans)<<endl;

	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14940 KB Output is correct
2 Correct 10 ms 16988 KB Output is correct
3 Correct 11 ms 15192 KB Output is correct
4 Correct 10 ms 14936 KB Output is correct
5 Correct 3 ms 16984 KB Output is correct
6 Correct 10 ms 16988 KB Output is correct
7 Correct 3 ms 16984 KB Output is correct
8 Correct 3 ms 16988 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 15 ms 17000 KB Output is correct
11 Correct 25 ms 17084 KB Output is correct
12 Correct 11 ms 16988 KB Output is correct
13 Correct 11 ms 16988 KB Output is correct
14 Correct 12 ms 16988 KB Output is correct
15 Correct 11 ms 16988 KB Output is correct
16 Correct 10 ms 16984 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 17244 KB Output is correct
2 Correct 33 ms 20324 KB Output is correct
3 Correct 22 ms 17428 KB Output is correct
4 Correct 11 ms 16988 KB Output is correct
5 Correct 11 ms 16988 KB Output is correct
6 Correct 10 ms 17052 KB Output is correct
7 Correct 10 ms 14940 KB Output is correct
8 Correct 4 ms 16988 KB Output is correct
9 Correct 69 ms 21364 KB Output is correct
10 Correct 49 ms 21052 KB Output is correct
11 Correct 34 ms 21528 KB Output is correct
12 Correct 35 ms 21364 KB Output is correct
13 Correct 30 ms 21380 KB Output is correct
14 Correct 30 ms 21404 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14936 KB Output is correct
2 Correct 10 ms 14940 KB Output is correct
3 Correct 20 ms 17308 KB Output is correct
4 Correct 10 ms 16988 KB Output is correct
5 Correct 21 ms 18268 KB Output is correct
6 Correct 3 ms 16984 KB Output is correct
7 Correct 3 ms 16988 KB Output is correct
8 Correct 71 ms 20848 KB Output is correct
9 Correct 81 ms 20808 KB Output is correct
10 Correct 25 ms 20716 KB Output is correct
11 Correct 25 ms 20632 KB Output is correct
12 Correct 27 ms 20604 KB Output is correct
13 Correct 3 ms 16988 KB Output is correct
14 Correct 3 ms 16988 KB Output is correct
15 Correct 3 ms 16984 KB Output is correct
16 Correct 3 ms 16984 KB Output is correct
17 Correct 3 ms 16984 KB Output is correct
18 Correct 3 ms 16988 KB Output is correct
19 Correct 26 ms 20648 KB Output is correct
20 Correct 31 ms 20760 KB Output is correct
21 Correct 28 ms 20640 KB Output is correct
22 Correct 26 ms 20744 KB Output is correct

Subtask #4
63.0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14940 KB Output is correct
2 Correct 10 ms 16988 KB Output is correct
3 Correct 11 ms 15192 KB Output is correct
4 Correct 10 ms 14936 KB Output is correct
5 Correct 3 ms 16984 KB Output is correct
6 Correct 10 ms 16988 KB Output is correct
7 Correct 3 ms 16984 KB Output is correct
8 Correct 3 ms 16988 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 15 ms 17000 KB Output is correct
11 Correct 25 ms 17084 KB Output is correct
12 Correct 11 ms 16988 KB Output is correct
13 Correct 11 ms 16988 KB Output is correct
14 Correct 12 ms 16988 KB Output is correct
15 Correct 11 ms 16988 KB Output is correct
16 Correct 10 ms 16984 KB Output is correct
17 Correct 21 ms 17244 KB Output is correct
18 Correct 33 ms 20324 KB Output is correct
19 Correct 22 ms 17428 KB Output is correct
20 Correct 11 ms 16988 KB Output is correct
21 Correct 11 ms 16988 KB Output is correct
22 Correct 10 ms 17052 KB Output is correct
23 Correct 10 ms 14940 KB Output is correct
24 Correct 4 ms 16988 KB Output is correct
25 Correct 69 ms 21364 KB Output is correct
26 Correct 49 ms 21052 KB Output is correct
27 Correct 34 ms 21528 KB Output is correct
28 Correct 35 ms 21364 KB Output is correct
29 Correct 30 ms 21380 KB Output is correct
30 Correct 30 ms 21404 KB Output is correct
31 Correct 10 ms 14936 KB Output is correct
32 Correct 10 ms 14940 KB Output is correct
33 Correct 20 ms 17308 KB Output is correct
34 Correct 10 ms 16988 KB Output is correct
35 Correct 21 ms 18268 KB Output is correct
36 Correct 3 ms 16984 KB Output is correct
37 Correct 3 ms 16988 KB Output is correct
38 Correct 71 ms 20848 KB Output is correct
39 Correct 81 ms 20808 KB Output is correct
40 Correct 25 ms 20716 KB Output is correct
41 Correct 25 ms 20632 KB Output is correct
42 Correct 27 ms 20604 KB Output is correct
43 Correct 3 ms 16988 KB Output is correct
44 Correct 3 ms 16988 KB Output is correct
45 Correct 3 ms 16984 KB Output is correct
46 Correct 3 ms 16984 KB Output is correct
47 Correct 3 ms 16984 KB Output is correct
48 Correct 3 ms 16988 KB Output is correct
49 Correct 26 ms 20648 KB Output is correct
50 Correct 31 ms 20760 KB Output is correct
51 Correct 28 ms 20640 KB Output is correct
52 Correct 26 ms 20744 KB Output is correct
53 Correct 22 ms 18268 KB Output is correct
54 Correct 22 ms 18268 KB Output is correct
55 Correct 21 ms 18272 KB Output is correct
56 Correct 10 ms 14940 KB Output is correct
57 Correct 10 ms 15004 KB Output is correct
58 Correct 43 ms 20944 KB Output is correct
59 Correct 44 ms 20960 KB Output is correct
60 Correct 54 ms 20680 KB Output is correct
61 Correct 53 ms 20916 KB Output is correct
62 Correct 388 ms 20960 KB Output is correct
63 Correct 908 ms 20972 KB Output is correct
64 Correct 121 ms 21152 KB Output is correct
65 Correct 294 ms 21176 KB Output is correct
66 Correct 560 ms 21260 KB Output is correct
67 Correct 67 ms 21732 KB Output is correct
68 Correct 59 ms 21056 KB Output is correct
69 Correct 55 ms 21080 KB Output is correct
70 Correct 28 ms 21260 KB Output is correct
71 Correct 34 ms 21364 KB Output is correct
72 Correct 29 ms 21196 KB Output is correct
73 Correct 29 ms 21400 KB Output is correct
74 Correct 35 ms 21340 KB Output is correct