답안 #840804

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
840804	2023-08-31T17:22:09 Z	MohamedAliSaidane	봉쇄 시간 (IOI23_closing)	C++17	9 / 100	194 ms	542560 KB

closing

#include "closing.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

#define pb push_back
#define ff first
#define ss second
#define all(x) (x).begin(),(x).end()

const int nax = 205;
const ll INF = 1e13;

int n, x, y;
ll k;
vector<pair<int,ll>> A[nax];
vector<int> adj[nax];
ll dx[nax], dy[nax];
ll dp[nax][2 * nax][4], memo[nax][2 * nax][4][nax];
int tx[nax], ty[nax];
int cnt = 0;
void dfsx(int u, int par)
{
    for(auto e: A[u])
    {
        if(e.ff == par)
            continue;
        dx[e.ff] = dx[u] + e.ss;
        tx[e.ff] = u;
        dfsx(e.ff, u);
    }
}
void dfsy(int u, int par)
{
    for(auto e: A[u])
    {
        if(e.ff == par)
            continue;
        dy[e.ff] = dy[u] + e.ss;
        ty[e.ff] = u;
        dfsy(e.ff, u);
    }
}
ll f(int u, int ans, int typ);

ll g(int u, int rem, int typ, int idx)
{
    if(rem < 0)
        return INF;
    if(idx == (int)(adj[u].size()))
        return rem > 0? INF: 0ll;
    if(memo[u][rem][typ][idx] != -1)
        return memo[u][rem][typ][idx];
    if(rem == 0)
        return memo[u][rem][typ][idx] = 0ll;
    ll rep = INF;
    for(int j = 0; j <= rem; j++)
    {
        if(typ == 0)
        {
            if(adj[u][idx] == ty[u])
                rep = min(rep, g(u, rem-j, typ, idx + 1) + f(adj[u][idx], j - 1, 2));
            rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j, 0));
        }
        else if(typ == 1)
        {
            rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j - 1, 1));
            rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j, 0));
            if(ty[u] == adj[u][idx])
            {
                rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j - 1, 2));
                rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j - 2, 3));
            }
        }
        else if(typ == 2)
        {
            rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j - 1, 2));
            if(ty[u] != adj[u][idx])
                rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j, 0));
        }
        else
        {
            rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j - 2, 3));
            rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j - 1, 2));
            if(ty[u] != adj[u][idx])
            {
                rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j - 1, 1));
                rep = min(rep, g(u, rem - j, typ, idx + 1) + f(adj[u][idx], j, 0));
            }
        }
    }
    return memo[u][rem][typ][idx] = rep;
}
ll f(int u, int ans, int typ)
{
    if(ans < 0)
        return INF;
    if(dp[u][ans][typ] != -1)
        return dp[u][ans][typ];
    ll deplt = typ == 0? 0: typ == 1? dx[u]: typ == 2? dy[u]: max(dx[u], dy[u]);
    if(adj[u].empty())
        return dp[u][ans][typ] = ans > 0? INF: deplt;
    
    return dp[u][ans][typ] = g(u, ans, typ, 0)  + deplt;
}
int max_score(int N, int X, int Y, long long K,
              std::vector<int> U, std::vector<int> V, std::vector<int> W)
{
    K =min(K, (ll)(1e12));
    n = N, x = X, y = Y, k = K;
    for(int i = 0; i < N; i ++)
    {
        A[i].clear();
        adj[i].clear();

    }
    memset(dp, -1, sizeof(dp));
    memset(memo, -1, sizeof(memo));
    for(int i = 0; i < n - 1; i++)
    {
        A[U[i]].pb({V[i], W[i]});
        A[V[i]].pb({U[i], W[i]});
    }
    tx[x] = x, ty[y] = y;
    dx[x] = dy[y] = 0ll;
    dfsx(x, x);
    dfsy(y, y);
    for(int i = 0; i < n; i++)
    {
        vector<int> v;
        for(auto e: A[i])
            if(e.ff != tx[i])
                adj[i].pb(e.ff);
    }
    for(int ans = 2; ans <= 2 * n; ans++)
    {
        ll cost = INF;
        cost = min(cost, f(x, ans, 0));
        cost = min(cost, f(x, ans - 1, 1));
        cost = min(cost, f(x, ans - 1, 2));
        cost = min(cost, f(x, ans - 2, 3));
        if(cost > k)
            return ans - 1;
    }
    cnt++;
    assert(cnt == 1);
    return 2 * n;
}

Subtask #0
0.0 / 0.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	542344 KB	Output is correct

Subtask #1
0.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	46 ms	4976 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #2
0.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	542336 KB	Output is correct
2	Correct	162 ms	542560 KB	Output is correct
3	Correct	150 ms	542424 KB	Output is correct
4	Correct	150 ms	542396 KB	Output is correct
5	Correct	152 ms	542308 KB	Output is correct
6	Correct	166 ms	542536 KB	Output is correct
7	Correct	152 ms	542352 KB	Output is correct
8	Correct	156 ms	542320 KB	Output is correct
9	Correct	150 ms	542352 KB	Output is correct
10	Incorrect	157 ms	542424 KB	1st lines differ - on the 1st token, expected: '44', found: '52'
11	Halted	0 ms	0 KB	-

Subtask #3
0.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	542336 KB	Output is correct
2	Correct	162 ms	542560 KB	Output is correct
3	Correct	150 ms	542424 KB	Output is correct
4	Correct	150 ms	542396 KB	Output is correct
5	Correct	152 ms	542308 KB	Output is correct
6	Correct	166 ms	542536 KB	Output is correct
7	Correct	152 ms	542352 KB	Output is correct
8	Correct	156 ms	542320 KB	Output is correct
9	Correct	150 ms	542352 KB	Output is correct
10	Incorrect	157 ms	542424 KB	1st lines differ - on the 1st token, expected: '44', found: '52'
11	Halted	0 ms	0 KB	-

Subtask #4
0.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	542336 KB	Output is correct
2	Correct	162 ms	542560 KB	Output is correct
3	Correct	150 ms	542424 KB	Output is correct
4	Correct	150 ms	542396 KB	Output is correct
5	Correct	152 ms	542308 KB	Output is correct
6	Correct	166 ms	542536 KB	Output is correct
7	Correct	152 ms	542352 KB	Output is correct
8	Correct	156 ms	542320 KB	Output is correct
9	Correct	150 ms	542352 KB	Output is correct
10	Incorrect	157 ms	542424 KB	1st lines differ - on the 1st token, expected: '44', found: '52'
11	Halted	0 ms	0 KB	-

Subtask #5
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	542344 KB	Output is correct
2	Correct	149 ms	542336 KB	Output is correct
3	Correct	162 ms	542560 KB	Output is correct
4	Correct	150 ms	542424 KB	Output is correct
5	Correct	150 ms	542396 KB	Output is correct
6	Correct	152 ms	542308 KB	Output is correct
7	Correct	149 ms	542360 KB	Output is correct
8	Correct	152 ms	542408 KB	Output is correct
9	Correct	152 ms	542336 KB	Output is correct
10	Correct	154 ms	542432 KB	Output is correct
11	Correct	154 ms	542424 KB	Output is correct
12	Correct	152 ms	542372 KB	Output is correct
13	Correct	154 ms	542324 KB	Output is correct
14	Correct	150 ms	542344 KB	Output is correct
15	Correct	154 ms	542316 KB	Output is correct
16	Correct	164 ms	542336 KB	Output is correct
17	Correct	151 ms	542420 KB	Output is correct
18	Correct	151 ms	542388 KB	Output is correct
19	Correct	156 ms	542316 KB	Output is correct
20	Correct	153 ms	542304 KB	Output is correct
21	Correct	151 ms	542424 KB	Output is correct
22	Correct	154 ms	542332 KB	Output is correct
23	Correct	154 ms	542384 KB	Output is correct
24	Correct	150 ms	542344 KB	Output is correct

Subtask #6
0.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	542344 KB	Output is correct
2	Correct	149 ms	542336 KB	Output is correct
3	Correct	162 ms	542560 KB	Output is correct
4	Correct	150 ms	542424 KB	Output is correct
5	Correct	150 ms	542396 KB	Output is correct
6	Correct	152 ms	542308 KB	Output is correct
7	Correct	166 ms	542536 KB	Output is correct
8	Correct	152 ms	542352 KB	Output is correct
9	Correct	156 ms	542320 KB	Output is correct
10	Correct	150 ms	542352 KB	Output is correct
11	Incorrect	157 ms	542424 KB	1st lines differ - on the 1st token, expected: '44', found: '52'
12	Halted	0 ms	0 KB	-

Subtask #7
0.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	542344 KB	Output is correct
2	Correct	149 ms	542336 KB	Output is correct
3	Correct	162 ms	542560 KB	Output is correct
4	Correct	150 ms	542424 KB	Output is correct
5	Correct	150 ms	542396 KB	Output is correct
6	Correct	152 ms	542308 KB	Output is correct
7	Correct	166 ms	542536 KB	Output is correct
8	Correct	152 ms	542352 KB	Output is correct
9	Correct	156 ms	542320 KB	Output is correct
10	Correct	150 ms	542352 KB	Output is correct
11	Incorrect	157 ms	542424 KB	1st lines differ - on the 1st token, expected: '44', found: '52'
12	Halted	0 ms	0 KB	-

Subtask #8
0.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	542344 KB	Output is correct
2	Correct	149 ms	542336 KB	Output is correct
3	Correct	162 ms	542560 KB	Output is correct
4	Correct	150 ms	542424 KB	Output is correct
5	Correct	150 ms	542396 KB	Output is correct
6	Correct	152 ms	542308 KB	Output is correct
7	Correct	166 ms	542536 KB	Output is correct
8	Correct	152 ms	542352 KB	Output is correct
9	Correct	156 ms	542320 KB	Output is correct
10	Correct	150 ms	542352 KB	Output is correct
11	Incorrect	157 ms	542424 KB	1st lines differ - on the 1st token, expected: '44', found: '52'
12	Halted	0 ms	0 KB	-

Subtask #9
0.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	542344 KB	Output is correct
2	Correct	149 ms	542336 KB	Output is correct
3	Correct	162 ms	542560 KB	Output is correct
4	Correct	150 ms	542424 KB	Output is correct
5	Correct	150 ms	542396 KB	Output is correct
6	Correct	152 ms	542308 KB	Output is correct
7	Correct	166 ms	542536 KB	Output is correct
8	Correct	152 ms	542352 KB	Output is correct
9	Correct	156 ms	542320 KB	Output is correct
10	Correct	150 ms	542352 KB	Output is correct
11	Incorrect	157 ms	542424 KB	1st lines differ - on the 1st token, expected: '44', found: '52'
12	Halted	0 ms	0 KB	-

답안 #840804

Compilation message