oj.uz

Submission #764932

# Submission time Handle Problem Language Result Execution time Memory
764932 2023-06-24T06:39:12 Z vjudge1 Speedrun (RMI21_speedrun) C++17
29 / 100
 65 ms 47820 KB 
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <bitset>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include "speedrun.h"

// Akhmet Issa

using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define ent "\n"

const int maxn = 1e6 + 100;
const ll INF = (ll)2e18;
const int inf = (ll)2e9;
const int maxl = 20;
const int MOD = 1e9 + 7;

int S;
vector<int> g[maxn];
int used[maxn];

void assignHints(int subtask, int n, int A [], int B []){
    int r = 1;
    for(int i = 1; i < n; i++){
        g[A[i]].push_back(B[i]);
        g[B[i]].push_back(A[i]);
    }
    if(subtask == 2){
        setHintLen(20);
        for(int i = 1; i <= n; i++){
            if(g[i].size() > 1) r = i;
        }
        for(int i = 1; i <= n; i++){
            if(i == r) continue;
            for(int j = 1; j <= 20; j++){
                if(r & (1<<(j-1))) setHint(i, j, 1);
            }
        }
    } else if(subtask == 1){
        setHintLen(n);
        for(int i = 1; i <= n; i++){
            for(int to: g[i]){
                setHint(i, to, 1);
            }
        }
    }
}

void dfs(int subtask, int v, int pr, int n){
    if(subtask == 2){
        used[v] = 1;
        int num = 0;
        for(int i = 1; i <= 20; i++){
            if(getHint(i)) num += (1<<(i-1));
        }
        if(!num){
            for(int to = 1; to <= n; to++){
                if(!used[to]){
                    goTo(to);
                    dfs(subtask, to, v, n);
                }
            }
        } else{
            if(!used[num]){
                goTo(num);
                dfs(subtask, num, v, n);
            }
        }
        if(pr) goTo(pr);
    } else if(subtask == 1){
        used[v] = 1;
        for(int to = 1; to <= n; to++){
            if(getHint(to) && !used[to]){
                goTo(to);
                dfs(subtask, to, v, n);
            }
        }
        if(pr) goTo(pr);
    }
}

void speedrun(int subtask, int n, int start){
    if(subtask == 2){
        dfs(subtask, start, 0, n);
    } else if(subtask == 1){
        dfs(subtask, start, 0, n);
    }
}

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 47688 KB Output is correct
2 Correct 56 ms 47652 KB Output is correct
3 Correct 60 ms 47712 KB Output is correct
4 Correct 50 ms 47820 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 47572 KB Output is correct
2 Correct 65 ms 47520 KB Output is correct

Subtask #3
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 23756 KB setHintLen was never called
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 23752 KB setHintLen was never called
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 23760 KB setHintLen was never called
2 Halted 0 ms 0 KB -