oj.uz

답안 #580279

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
580279 2022-06-21T02:44:50 Z balbit Jail (JOI22_jail) C++14
72 / 100
 5000 ms 872128 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pii pair<ll, ll>
#define f first
#define s second

#define MX(a,b) a = max(a,b)
#define MN(a,b) a = min(a,b)

#define SZ(x) (int)(x).size()
#define ALL(x) (x).begin(), (x).end()
#define pb push_back

#define FOR(i,a,b) for (int i = a; i<b; ++i)
#define REP(i,n) FOR(i,0,n)
#define REP1(i,n) FOR(i,1,n+1)

#ifdef BALBIT
#define bug(...) cerr<<"#"<<__LINE__<<": "<<#__VA_ARGS__<<"- ", _do(__VA_ARGS__)
template<typename T> void _do( T && x) {cerr<<x<<endl;}
template<typename T, typename ...S> void _do( T && x, S && ...y) {cerr<<x<<", "; _do(y...);}
#else
#define bug(...)
#define endl '\n'
#endif // BALBIT

const int maxn = 2e5+5;


vector<int> tree[maxn];
int dep[maxn];
int fa[18][maxn];

void dfs(int v, int p) {
    for (int u : tree[v]) {
        if (u == p) continue;
        dep[u] = dep[v] + 1;
        fa[0][u] = v;
        dfs(u,v);
    }
}

int st[maxn], en[maxn]; // starting or ending???
int snode[maxn], enode[maxn];
void CLR(int n){
    REP(i,n) {
        tree[i].clear(); dep[i] = 0;
        st[i] = en[i] = -1;
    }
}

vector<int> g[maxn];
int indeg[maxn];

signed main(){
    ios::sync_with_stdio(0), cin.tie(0);
    bug(1,2);

    int T; cin>>T;
    while (T--) {
        int n; cin>>n;
        CLR(n);

        REP(i,n-1) {
            int a,b; cin>>a>>b; --a; --b;
            tree[a].pb(b); tree[b].pb(a);
        }

        dfs(0,-1);

        int q; cin>>q;
        REP(i,q) {
            cin>>snode[i]>>enode[i]; --snode[i]; --enode[i];
            st[snode[i]] = i; en[enode[i]] = i;
        }

        REP(i,q) g[i].clear();

        REP(i,q) {
            int a = snode[i], b = enode[i];
            bool yo = 0;
            while (a!=b || yo) {
                if (dep[a] < dep[b]) swap(a,b);
                // walk a
                if (~st[a] && st[a] != i) {
                    g[i].pb(st[a]);
                    bug(i, st[a]);
                }
                if (~en[a] && en[a] != i) {
                    g[en[a]].pb(i);
                    bug(en[a], i);
                }
                if (yo) break;
                a = fa[0][a];
                if (a == b) yo = 1;
            }

        }

        REP(i,q) {
            indeg[i] = 0;
        }
        REP(i,q) {
            for (int u : g[i]) {
                ++indeg[u];
            }
        }
        queue<int> qq;
        REP(i,q) {
            if (indeg[i] == 0) {
                qq.push(i);
            }
        }
        int done = 0;
        while (!qq.empty() ){
            int v = qq.front(); qq.pop();
            ++done;
            for (int u : g[v]) {
                if (--indeg[u] == 0) {
                    qq.push(u);
                }
            }
        }

        bug(done);
        cout<<(done==q?"Yes":"No")<<endl;

    }


}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9728 KB Output is correct
2 Correct 6 ms 9812 KB Output is correct
3 Correct 5 ms 9732 KB Output is correct
4 Correct 12 ms 10004 KB Output is correct
5 Correct 22 ms 10452 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9796 KB Output is correct
8 Correct 7 ms 9872 KB Output is correct
9 Correct 88 ms 13584 KB Output is correct
10 Correct 228 ms 25632 KB Output is correct
11 Correct 11 ms 9812 KB Output is correct
12 Correct 38 ms 10816 KB Output is correct
13 Correct 158 ms 55180 KB Output is correct
14 Correct 169 ms 68996 KB Output is correct
15 Execution timed out 5085 ms 872128 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9808 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 7 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9744 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9812 KB Output is correct
10 Correct 8 ms 9792 KB Output is correct
11 Correct 6 ms 9808 KB Output is correct
12 Correct 6 ms 9736 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9808 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 7 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9744 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9812 KB Output is correct
10 Correct 8 ms 9792 KB Output is correct
11 Correct 6 ms 9808 KB Output is correct
12 Correct 6 ms 9736 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 6 ms 9684 KB Output is correct
15 Correct 6 ms 9812 KB Output is correct
16 Correct 7 ms 9912 KB Output is correct
17 Correct 6 ms 9808 KB Output is correct
18 Correct 6 ms 9760 KB Output is correct
19 Correct 6 ms 9672 KB Output is correct
20 Correct 8 ms 9816 KB Output is correct
21 Correct 7 ms 9812 KB Output is correct
22 Correct 7 ms 9752 KB Output is correct
23 Correct 6 ms 9732 KB Output is correct
24 Correct 6 ms 9740 KB Output is correct
25 Correct 6 ms 9804 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 6 ms 9812 KB Output is correct
28 Correct 6 ms 9684 KB Output is correct

Subtask #4
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9808 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 7 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9744 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9812 KB Output is correct
10 Correct 8 ms 9792 KB Output is correct
11 Correct 6 ms 9808 KB Output is correct
12 Correct 6 ms 9736 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 6 ms 9684 KB Output is correct
15 Correct 6 ms 9812 KB Output is correct
16 Correct 7 ms 9912 KB Output is correct
17 Correct 6 ms 9808 KB Output is correct
18 Correct 6 ms 9760 KB Output is correct
19 Correct 6 ms 9672 KB Output is correct
20 Correct 8 ms 9816 KB Output is correct
21 Correct 7 ms 9812 KB Output is correct
22 Correct 7 ms 9752 KB Output is correct
23 Correct 6 ms 9732 KB Output is correct
24 Correct 6 ms 9740 KB Output is correct
25 Correct 6 ms 9804 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 6 ms 9812 KB Output is correct
28 Correct 6 ms 9684 KB Output is correct
29 Correct 8 ms 9876 KB Output is correct
30 Correct 7 ms 9744 KB Output is correct
31 Correct 9 ms 9744 KB Output is correct
32 Correct 8 ms 9684 KB Output is correct
33 Correct 8 ms 9812 KB Output is correct
34 Correct 7 ms 9812 KB Output is correct
35 Correct 8 ms 9812 KB Output is correct
36 Correct 7 ms 9744 KB Output is correct
37 Correct 6 ms 9812 KB Output is correct

Subtask #5
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9808 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 7 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9744 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9812 KB Output is correct
10 Correct 8 ms 9792 KB Output is correct
11 Correct 6 ms 9808 KB Output is correct
12 Correct 6 ms 9736 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 6 ms 9684 KB Output is correct
15 Correct 6 ms 9812 KB Output is correct
16 Correct 7 ms 9912 KB Output is correct
17 Correct 6 ms 9808 KB Output is correct
18 Correct 6 ms 9760 KB Output is correct
19 Correct 6 ms 9672 KB Output is correct
20 Correct 8 ms 9816 KB Output is correct
21 Correct 7 ms 9812 KB Output is correct
22 Correct 7 ms 9752 KB Output is correct
23 Correct 6 ms 9732 KB Output is correct
24 Correct 6 ms 9740 KB Output is correct
25 Correct 6 ms 9804 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 6 ms 9812 KB Output is correct
28 Correct 6 ms 9684 KB Output is correct
29 Correct 8 ms 9876 KB Output is correct
30 Correct 7 ms 9744 KB Output is correct
31 Correct 9 ms 9744 KB Output is correct
32 Correct 8 ms 9684 KB Output is correct
33 Correct 8 ms 9812 KB Output is correct
34 Correct 7 ms 9812 KB Output is correct
35 Correct 8 ms 9812 KB Output is correct
36 Correct 7 ms 9744 KB Output is correct
37 Correct 6 ms 9812 KB Output is correct
38 Correct 87 ms 13444 KB Output is correct
39 Correct 232 ms 25576 KB Output is correct
40 Correct 70 ms 12452 KB Output is correct
41 Correct 30 ms 11020 KB Output is correct
42 Correct 50 ms 12512 KB Output is correct
43 Correct 25 ms 11340 KB Output is correct
44 Correct 12 ms 10196 KB Output is correct
45 Correct 54 ms 16856 KB Output is correct
46 Correct 47 ms 16744 KB Output is correct
47 Correct 73 ms 20592 KB Output is correct
48 Correct 70 ms 20636 KB Output is correct
49 Correct 49 ms 16972 KB Output is correct
50 Correct 50 ms 16984 KB Output is correct
51 Correct 44 ms 17712 KB Output is correct
52 Correct 41 ms 17968 KB Output is correct
53 Correct 14 ms 10396 KB Output is correct
54 Correct 65 ms 16712 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9732 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 7 ms 9684 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Correct 14 ms 9876 KB Output is correct
6 Correct 8 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct
9 Correct 6 ms 9736 KB Output is correct
10 Correct 6 ms 9732 KB Output is correct
11 Correct 6 ms 9684 KB Output is correct
12 Correct 7 ms 9820 KB Output is correct
13 Correct 22 ms 10328 KB Output is correct
14 Correct 27 ms 10516 KB Output is correct
15 Correct 25 ms 10444 KB Output is correct
16 Correct 59 ms 17420 KB Output is correct
17 Correct 134 ms 23400 KB Output is correct
18 Correct 251 ms 43488 KB Output is correct
19 Correct 59 ms 17484 KB Output is correct
20 Correct 61 ms 17352 KB Output is correct
21 Correct 62 ms 17748 KB Output is correct
22 Correct 105 ms 24152 KB Output is correct
23 Correct 85 ms 24528 KB Output is correct
24 Correct 102 ms 23384 KB Output is correct
25 Correct 91 ms 24628 KB Output is correct
26 Correct 89 ms 24660 KB Output is correct
27 Correct 106 ms 22564 KB Output is correct
28 Correct 89 ms 23712 KB Output is correct
29 Correct 95 ms 23840 KB Output is correct
30 Correct 91 ms 20308 KB Output is correct
31 Correct 71 ms 20316 KB Output is correct
32 Correct 85 ms 20308 KB Output is correct
33 Correct 70 ms 20240 KB Output is correct

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9728 KB Output is correct
2 Correct 6 ms 9812 KB Output is correct
3 Correct 5 ms 9732 KB Output is correct
4 Correct 12 ms 10004 KB Output is correct
5 Correct 22 ms 10452 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9796 KB Output is correct
8 Correct 7 ms 9872 KB Output is correct
9 Correct 88 ms 13584 KB Output is correct
10 Correct 228 ms 25632 KB Output is correct
11 Correct 11 ms 9812 KB Output is correct
12 Correct 38 ms 10816 KB Output is correct
13 Correct 158 ms 55180 KB Output is correct
14 Correct 169 ms 68996 KB Output is correct
15 Execution timed out 5085 ms 872128 KB Time limit exceeded
16 Halted 0 ms 0 KB -