oj.uz

Submission #1005436

# Submission time Handle Problem Language Result Execution time Memory
1005436 2024-06-22T12:42:11 Z vjudge1 Party (POI11_imp) C++17
27 / 100
 3000 ms 43848 KB 
#include <bits/stdc++.h>

#define suiii ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long
#define co cout<<
//#pragma GCC optimize("O3,Ofast,unroll-loops")
//#pragma GCC target("avx2,sse3,sse4,avx")
using namespace std;
//stuff
int n,m;
vector<int>v[3005];
bitset<3005>curr,mat[3005],vis;
int cnt=0;
void rec(int x){
    if(cnt==n/3){
        for(int i=0;i<3005;i++){
            if(curr[i]==1) co i<<' ';
        }
        exit(0);
    }
    if(x==n) return;
    if(n-x+cnt<n/3) return ;
    if((curr&mat[x])==curr){
        curr[x]=1;
        cnt++;
        rec(x+1);
        cnt--;
        curr[x]=0;
    }
    rec(x+1);
    return;
}
void rec1(ll x,ll last){
    if(x==n/3){
        for(int i=0;i<3005;i++){
            if(curr[i]==1) co i<<' ';
        }
        exit(0);
    }
    ll num;
    bitset<3005>dont={};
    if(last==-1){
        num=rand()%n+1;
        while(dont[num]||vis[num]||(curr&mat[num])!=curr) dont[num]=1,num=rand()%n+1;
    }
    else{
        num=v[last][rand()%v[last].size()];
        while(dont[num]||vis[num]||(curr&mat[num])!=curr) dont[num]=1,num=v[last][rand()%v[last].size()];
    }
    vis[num]=1;
    curr[num]=1;
    rec1(x+1,num);
    curr[num]=0;
    vis[num]=0;
}
void solve(){
    cin>>n>>m;
    for(int i=0;i<m;i++){
        ll a,b;
        cin>>a>>b;
        v[a].push_back(b);
        v[b].push_back(a);
        mat[a][b]=1;
        mat[b][a]=1;
    }
    if(n<=100) rec(0);
    else while(1) rec1(0,-1);
}
int main()
{
    suiii
    int t=1;
    // cin>>t;
    while(t--){
        solve();
    }
    return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 576 KB Output is correct
5 Correct 1 ms 604 KB Output is correct

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3040 ms 600 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1372 KB Output is correct
2 Correct 44 ms 5460 KB Output is correct
3 Correct 34 ms 5456 KB Output is correct
4 Correct 35 ms 5460 KB Output is correct
5 Execution timed out 3045 ms 5456 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1880 KB Output is correct
2 Correct 88 ms 12564 KB Output is correct
3 Correct 94 ms 12372 KB Output is correct
4 Correct 88 ms 12368 KB Output is correct
5 Correct 90 ms 12532 KB Output is correct

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 4444 KB Output is correct
2 Correct 130 ms 17492 KB Output is correct
3 Correct 126 ms 17488 KB Output is correct
4 Execution timed out 3048 ms 16980 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 12628 KB Output is correct
2 Correct 160 ms 19260 KB Output is correct
3 Execution timed out 3043 ms 19116 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #7
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 151 ms 16696 KB Output is correct
2 Correct 226 ms 22172 KB Output is correct
3 Correct 224 ms 22096 KB Output is correct
4 Execution timed out 3043 ms 21840 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #8
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 19004 KB Output is correct
2 Correct 305 ms 34820 KB Output is correct
3 Correct 268 ms 34828 KB Output is correct
4 Correct 288 ms 34644 KB Output is correct
5 Correct 280 ms 35152 KB Output is correct

Subtask #9
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 244 ms 20788 KB Output is correct
2 Execution timed out 3055 ms 37604 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 280 ms 37716 KB Output is correct
2 Execution timed out 3010 ms 41040 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 355 ms 43092 KB Output is correct
2 Correct 404 ms 43604 KB Output is correct
3 Execution timed out 3072 ms 43848 KB Time limit exceeded
4 Halted 0 ms 0 KB -