oj.uz

Submission #1001163

# Submission time Handle Problem Language Result Execution time Memory
1001163 2024-06-18T16:14:02 Z De3b0o Jail (JOI22_jail) C++14
49 / 100
 5000 ms 1048576 KB 
#include<bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define in insert
#define pb push_back
#define ppb pop_back()
#define d3 ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define cans cout << ans << "\n";
#define yes cout << "Yes" << "\n";
#define no cout << "No" << "\n";
#define pll pair<ll,ll>
#define lin cout << "\n";
#define mod 1000000007
#define mid ((l+r)/2)
#define lc (2*x)
#define rc (2*x+1)

using namespace std;

ll n , m;
vector<ll> adj[120009];
ll S[120009] , T[120009];
vector<ll> path[120009];
set<ll> pas[120009];
ll pr[120009];
ll o[120009];
vector<ll> g[120009];
ll vs;
ll vis[120009];

void ddfs(ll x)
{
    if(vis[x])
        return;
    vis[x]=1;
    vs++;
    for(auto it : g[x])
        ddfs(it);
}

void dfs(ll x , ll p , ll f , ll s)
{
    pr[x]=p;
    if(x==f)
    {
        ll y = f;
        while(y)
        {
            path[s].pb(y);
            pas[s].in(y);
            y=pr[y];
        }
        reverse(path[s].begin(),path[s].end());
        return;
    }
    for(auto it : adj[x])
    {
        if(it==p)
            continue;
        dfs(it,x,f,s);
    }
}

int main()
{
    d3
    ll t;
    cin >> t;
    while(t--)
    {
        cin >> n;
        for(int i = 1 ; n>=i ; i++)
            adj[i].clear();
        for(int i = 0 ; n-1>i ; i++)
        {
            ll u , v;
            cin >> u >> v;
            adj[u].pb(v);
            adj[v].pb(u);
        }
        cin >> m;
        for(int i = 1 ; m>=i ; i++)
        {
            cin >> S[i] >> T[i];
            path[i].clear();
            pas[i].clear();
            g[i].clear();
            o[i]=0;
            dfs(S[i],0,T[i],i);
        }
        bool ans = 0;
        for(int i = 1 ; m>=i ; i++)
        {
            for(int j = 1 ; m>=j ; j++)
            {
                if(i==j)
                    continue;
                if(pas[i].find(S[j])==pas[i].end()&&pas[j].find(T[i])==pas[j].end())
                {
                    g[j].pb(i);
                    o[i]++;
                }
            }
        }
        ll x = 0;
        ll v[120009] = {0};
        while(true)
        {
            ll y = 0;
            vector<ll> d;
            for(int i = 1 ; m>=i ; i++)
            {
                if(v[i])
                    continue;
                if(o[i]==m-x-1)
                {
                    v[i]=1;
                    d.pb(i);
                    y++;
                }
            }
            if(!y)
                break;
            x+=y;
            for(auto it : d)
            {
                for(auto it1 : g[it])
                    o[it1]--;
            }
        }
        if(x==m)
            yes
        else
            no
    }
}

Compilation message

jail.cpp: In function 'int main()':
jail.cpp:92:14: warning: unused variable 'ans' [-Wunused-variable]
   92 |         bool ans = 0;
      |              ^~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 18536 KB Output is correct
2 Correct 4 ms 18496 KB Output is correct
3 Correct 4 ms 18484 KB Output is correct
4 Correct 20 ms 19036 KB Output is correct
5 Correct 39 ms 19280 KB Output is correct
6 Correct 6 ms 18780 KB Output is correct
7 Correct 6 ms 18780 KB Output is correct
8 Correct 16 ms 19804 KB Output is correct
9 Correct 1918 ms 176724 KB Output is correct
10 Runtime error 2959 ms 1048576 KB Execution killed with signal 9
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 18520 KB Output is correct
2 Correct 4 ms 18524 KB Output is correct
3 Correct 5 ms 18780 KB Output is correct
4 Correct 9 ms 18780 KB Output is correct
5 Correct 10 ms 18792 KB Output is correct
6 Correct 6 ms 18788 KB Output is correct
7 Correct 5 ms 18780 KB Output is correct
8 Correct 8 ms 18776 KB Output is correct
9 Correct 6 ms 18776 KB Output is correct
10 Correct 5 ms 18780 KB Output is correct
11 Correct 6 ms 18780 KB Output is correct
12 Correct 5 ms 18520 KB Output is correct
13 Correct 5 ms 18524 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 18520 KB Output is correct
2 Correct 4 ms 18524 KB Output is correct
3 Correct 5 ms 18780 KB Output is correct
4 Correct 9 ms 18780 KB Output is correct
5 Correct 10 ms 18792 KB Output is correct
6 Correct 6 ms 18788 KB Output is correct
7 Correct 5 ms 18780 KB Output is correct
8 Correct 8 ms 18776 KB Output is correct
9 Correct 6 ms 18776 KB Output is correct
10 Correct 5 ms 18780 KB Output is correct
11 Correct 6 ms 18780 KB Output is correct
12 Correct 5 ms 18520 KB Output is correct
13 Correct 5 ms 18524 KB Output is correct
14 Correct 5 ms 18524 KB Output is correct
15 Correct 4 ms 18524 KB Output is correct
16 Correct 5 ms 18736 KB Output is correct
17 Correct 5 ms 18568 KB Output is correct
18 Correct 6 ms 18780 KB Output is correct
19 Correct 5 ms 18524 KB Output is correct
20 Correct 6 ms 18780 KB Output is correct
21 Correct 5 ms 18780 KB Output is correct
22 Correct 5 ms 18780 KB Output is correct
23 Correct 6 ms 18524 KB Output is correct
24 Correct 5 ms 18516 KB Output is correct
25 Correct 6 ms 18772 KB Output is correct
26 Correct 5 ms 18776 KB Output is correct
27 Correct 5 ms 18780 KB Output is correct
28 Correct 5 ms 18524 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 18520 KB Output is correct
2 Correct 4 ms 18524 KB Output is correct
3 Correct 5 ms 18780 KB Output is correct
4 Correct 9 ms 18780 KB Output is correct
5 Correct 10 ms 18792 KB Output is correct
6 Correct 6 ms 18788 KB Output is correct
7 Correct 5 ms 18780 KB Output is correct
8 Correct 8 ms 18776 KB Output is correct
9 Correct 6 ms 18776 KB Output is correct
10 Correct 5 ms 18780 KB Output is correct
11 Correct 6 ms 18780 KB Output is correct
12 Correct 5 ms 18520 KB Output is correct
13 Correct 5 ms 18524 KB Output is correct
14 Correct 5 ms 18524 KB Output is correct
15 Correct 4 ms 18524 KB Output is correct
16 Correct 5 ms 18736 KB Output is correct
17 Correct 5 ms 18568 KB Output is correct
18 Correct 6 ms 18780 KB Output is correct
19 Correct 5 ms 18524 KB Output is correct
20 Correct 6 ms 18780 KB Output is correct
21 Correct 5 ms 18780 KB Output is correct
22 Correct 5 ms 18780 KB Output is correct
23 Correct 6 ms 18524 KB Output is correct
24 Correct 5 ms 18516 KB Output is correct
25 Correct 6 ms 18772 KB Output is correct
26 Correct 5 ms 18776 KB Output is correct
27 Correct 5 ms 18780 KB Output is correct
28 Correct 5 ms 18524 KB Output is correct
29 Correct 16 ms 19804 KB Output is correct
30 Correct 10 ms 18780 KB Output is correct
31 Correct 13 ms 19036 KB Output is correct
32 Correct 10 ms 18780 KB Output is correct
33 Correct 6 ms 18780 KB Output is correct
34 Correct 11 ms 18976 KB Output is correct
35 Correct 19 ms 19292 KB Output is correct
36 Correct 10 ms 18932 KB Output is correct
37 Correct 10 ms 18872 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 18520 KB Output is correct
2 Correct 4 ms 18524 KB Output is correct
3 Correct 5 ms 18780 KB Output is correct
4 Correct 9 ms 18780 KB Output is correct
5 Correct 10 ms 18792 KB Output is correct
6 Correct 6 ms 18788 KB Output is correct
7 Correct 5 ms 18780 KB Output is correct
8 Correct 8 ms 18776 KB Output is correct
9 Correct 6 ms 18776 KB Output is correct
10 Correct 5 ms 18780 KB Output is correct
11 Correct 6 ms 18780 KB Output is correct
12 Correct 5 ms 18520 KB Output is correct
13 Correct 5 ms 18524 KB Output is correct
14 Correct 5 ms 18524 KB Output is correct
15 Correct 4 ms 18524 KB Output is correct
16 Correct 5 ms 18736 KB Output is correct
17 Correct 5 ms 18568 KB Output is correct
18 Correct 6 ms 18780 KB Output is correct
19 Correct 5 ms 18524 KB Output is correct
20 Correct 6 ms 18780 KB Output is correct
21 Correct 5 ms 18780 KB Output is correct
22 Correct 5 ms 18780 KB Output is correct
23 Correct 6 ms 18524 KB Output is correct
24 Correct 5 ms 18516 KB Output is correct
25 Correct 6 ms 18772 KB Output is correct
26 Correct 5 ms 18776 KB Output is correct
27 Correct 5 ms 18780 KB Output is correct
28 Correct 5 ms 18524 KB Output is correct
29 Correct 16 ms 19804 KB Output is correct
30 Correct 10 ms 18780 KB Output is correct
31 Correct 13 ms 19036 KB Output is correct
32 Correct 10 ms 18780 KB Output is correct
33 Correct 6 ms 18780 KB Output is correct
34 Correct 11 ms 18976 KB Output is correct
35 Correct 19 ms 19292 KB Output is correct
36 Correct 10 ms 18932 KB Output is correct
37 Correct 10 ms 18872 KB Output is correct
38 Correct 2033 ms 176776 KB Output is correct
39 Runtime error 2873 ms 1048576 KB Execution killed with signal 9
40 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 18520 KB Output is correct
2 Correct 4 ms 18524 KB Output is correct
3 Correct 5 ms 18728 KB Output is correct
4 Correct 4 ms 18712 KB Output is correct
5 Correct 29 ms 18780 KB Output is correct
6 Correct 5 ms 18524 KB Output is correct
7 Correct 6 ms 18524 KB Output is correct
8 Correct 5 ms 18520 KB Output is correct
9 Correct 5 ms 18524 KB Output is correct
10 Correct 5 ms 18516 KB Output is correct
11 Correct 5 ms 18524 KB Output is correct
12 Correct 10 ms 18780 KB Output is correct
13 Correct 107 ms 19304 KB Output is correct
14 Correct 88 ms 19652 KB Output is correct
15 Correct 88 ms 19436 KB Output is correct
16 Execution timed out 5052 ms 27064 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 18536 KB Output is correct
2 Correct 4 ms 18496 KB Output is correct
3 Correct 4 ms 18484 KB Output is correct
4 Correct 20 ms 19036 KB Output is correct
5 Correct 39 ms 19280 KB Output is correct
6 Correct 6 ms 18780 KB Output is correct
7 Correct 6 ms 18780 KB Output is correct
8 Correct 16 ms 19804 KB Output is correct
9 Correct 1918 ms 176724 KB Output is correct
10 Runtime error 2959 ms 1048576 KB Execution killed with signal 9
11 Halted 0 ms 0 KB -