oj.uz

Submission #544974

# Submission time Handle Problem Language Result Execution time Memory
544974 2022-04-03T09:07:56 Z leaked Jail (JOI22_jail) C++14
49 / 100
 55 ms 1100 KB 
#include <bits/stdc++.h>

#define f first
#define s second
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define vec vector
#define pb push_back
#define sz(x) (int)(x).size()
#define pw(x) (1LL<<(x))
#define fast_resp ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef long double ld;
typedef pair<int,ll> pil;
template<class T> bool umin(T &a,const T &b){return (a>b?a=b,1:0);}
template<class T> bool umax(T &a,const T &b){return (a<b?a=b,1:0);}
const int M=1e9+7;
const int N=300+1;
void add(int &a,int b){
    a+=b;
    if(a>=M) a-=M;
    else if(a<0) a+=M;
}
int mult(int a,int b){
    return 1ll*a*b%M;
}
vec<int> gr[N],g[N];
int used[N],ok;
void dfs(int v){
    used[v]=1;
    for(auto &z : gr[v]){
        if(used[z]){
            ok&=(used[z]==2);
            continue;
        }
        dfs(z);
    }
    used[v]=2;
}
int par[N],in[N],out[N],tt;
void dfs1(int v,int p){
    par[v]=p;
    in[v]=tt++;
    for(auto &z : g[v]){
        if(z==p) continue;
        dfs1(z,v);
    }
    out[v]=tt-1;
}
bool is(int a,int b){
    return in[a]<=in[b]&&out[a]>=out[b];
}
void solve(){
    int n,m;
    cin>>n;
    for(int i=0;i<n;i++) g[i].clear();
    ok=1;
    for(int i=1;i<n;i++){
        int v,u;
        cin>>v>>u;--v;--u;
        g[v].pb(u);g[u].pb(v);
    }
    dfs1(0,0);
    cin>>m;
    vec<int> st(m),f(m);
    for(int i=0;i<m;i++) used[i]=0,gr[i].clear();
    for(int i=0;i<m;i++){
        cin>>st[i]>>f[i];--st[i];--f[i];

    }
    for(int i=0;i<m;i++){
        for(int j=0;j<m;j++){
            if(i==j) continue;
            /// shoot
            int v=st[i],u=f[i];
            while(!is(v,u)){
                if(v==st[j]) gr[j].pb(i);
                if(v==f[j]) gr[i].pb(j);
                v=par[v];
            }
            if(v==st[j]) gr[j].pb(i);
            if(v==f[j]) gr[i].pb(j);
            v=st[i];
            swap(v,u);
            while(!is(v,u)){
                if(v==st[j]) gr[j].pb(i);
                if(v==f[j]) gr[i].pb(j);
                v=par[v];
            }
        }
    }
    for(int i=0;i<m;i++){
        if(!used[i])
            dfs(i);
    }
    cout<<(ok?"Yes":"No")<<'\n';
}
signed main(){
    fast_resp;
    int t;
    cin>>t;
    while(t--){
        solve();
    }
    return 0;
}
/*

*/

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 9 ms 724 KB Output is correct
5 Correct 17 ms 980 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 28 ms 488 KB Output is correct
9 Runtime error 1 ms 468 KB Execution killed with signal 11
10 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 352 KB Output is correct
7 Correct 1 ms 352 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 352 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 352 KB Output is correct
7 Correct 1 ms 352 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 352 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 340 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 352 KB Output is correct
7 Correct 1 ms 352 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 352 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 27 ms 596 KB Output is correct
30 Correct 3 ms 352 KB Output is correct
31 Correct 9 ms 428 KB Output is correct
32 Correct 6 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 8 ms 340 KB Output is correct
35 Correct 36 ms 340 KB Output is correct
36 Correct 4 ms 340 KB Output is correct
37 Correct 4 ms 340 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 352 KB Output is correct
7 Correct 1 ms 352 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 352 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 27 ms 596 KB Output is correct
30 Correct 3 ms 352 KB Output is correct
31 Correct 9 ms 428 KB Output is correct
32 Correct 6 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 8 ms 340 KB Output is correct
35 Correct 36 ms 340 KB Output is correct
36 Correct 4 ms 340 KB Output is correct
37 Correct 4 ms 340 KB Output is correct
38 Runtime error 1 ms 516 KB Execution killed with signal 11
39 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 6 ms 480 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 55 ms 864 KB Output is correct
14 Correct 38 ms 1100 KB Output is correct
15 Correct 54 ms 968 KB Output is correct
16 Runtime error 1 ms 468 KB Execution killed with signal 11
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 9 ms 724 KB Output is correct
5 Correct 17 ms 980 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 28 ms 488 KB Output is correct
9 Runtime error 1 ms 468 KB Execution killed with signal 11
10 Halted 0 ms 0 KB -