oj.uz

Submission #1119812

# Submission time Handle Problem Language Result Execution time Memory
1119812 2024-11-27T12:52:09 Z Neco_arc Long Mansion (JOI17_long_mansion) C++17
10 / 100
 3000 ms 18816 KB 
#include <bits/stdc++.h>

#define ll long long
#define name "Long Mansion"
#define all(x) x.begin(), x.end()
#define _left id * 2, l, mid
#define _right id * 2 + 1, mid + 1, r
#define fi(i, a, b)  for(int i = a; i <= b; ++i)
#define fid(i, a, b) for(int i = a; i >= b; --i)
#define maxn (int) (5e5 + 7)

using namespace std;

/// ma

int n;
vector<int> P[maxn];
int a[maxn], fl[maxn], fr[maxn];

int check(int l, int r, int x) {
    auto it = lower_bound(all(P[x]), l);
    return it != P[x].end() && (*it <= r);
}

void solve() {

    cin >> n;
    fi(i, 1, n - 1) cin >> a[i];
    fi(i, 1, n) {
        int sz, x; cin >> sz;
        while(sz--) cin >> x, P[x].push_back(i);
    }

    fi(i, 1, n) {
        int l = i, r = i, ok = 1;
        while(ok) {
            ok = 0;

            if(l > 1 && check(l, r, a[l - 1])) {
                ok = 1;
                l = fl[l - 1], r = max(r, fr[l]);
            }
            else if(r < n && check(l, r, a[r])) { ++r, ok = 1; }
        }
        fl[i] = l, fr[i] = r;
    }

    int q; cin >> q;
    fi(i, 1, q) {
        int x, y; cin >> x >> y;
        if(fl[x] <= y && y <= fr[x]) cout << "YES\n";
        else cout << "NO\n";
    }

}

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);

    if(fopen(name".inp", "r")) {
        freopen(name".inp", "r", stdin);
        freopen(name".out", "w", stdout);
    }

    solve();

}

Compilation message

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:63:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |         freopen(name".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
long_mansion.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |         freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 12372 KB Output is correct
2 Correct 24 ms 12356 KB Output is correct
3 Correct 101 ms 12372 KB Output is correct
4 Correct 12 ms 12372 KB Output is correct
5 Correct 11 ms 12116 KB Output is correct
6 Correct 13 ms 12372 KB Output is correct
7 Correct 14 ms 12232 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 12372 KB Output is correct
2 Correct 24 ms 12356 KB Output is correct
3 Correct 101 ms 12372 KB Output is correct
4 Correct 12 ms 12372 KB Output is correct
5 Correct 11 ms 12116 KB Output is correct
6 Correct 13 ms 12372 KB Output is correct
7 Correct 14 ms 12232 KB Output is correct
8 Correct 76 ms 17996 KB Output is correct
9 Correct 75 ms 17984 KB Output is correct
10 Correct 108 ms 18524 KB Output is correct
11 Correct 190 ms 18816 KB Output is correct
12 Correct 69 ms 17604 KB Output is correct
13 Correct 65 ms 18156 KB Output is correct
14 Correct 73 ms 18404 KB Output is correct
15 Correct 90 ms 18160 KB Output is correct
16 Correct 67 ms 17996 KB Output is correct
17 Correct 65 ms 18252 KB Output is correct
18 Correct 68 ms 18220 KB Output is correct
19 Correct 71 ms 18260 KB Output is correct
20 Correct 82 ms 18300 KB Output is correct
21 Correct 72 ms 17740 KB Output is correct
22 Correct 63 ms 18252 KB Output is correct
23 Correct 92 ms 18148 KB Output is correct
24 Correct 82 ms 18000 KB Output is correct
25 Correct 66 ms 17996 KB Output is correct
26 Correct 90 ms 17996 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3037 ms 16896 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 12372 KB Output is correct
2 Correct 24 ms 12356 KB Output is correct
3 Correct 101 ms 12372 KB Output is correct
4 Correct 12 ms 12372 KB Output is correct
5 Correct 11 ms 12116 KB Output is correct
6 Correct 13 ms 12372 KB Output is correct
7 Correct 14 ms 12232 KB Output is correct
8 Correct 76 ms 17996 KB Output is correct
9 Correct 75 ms 17984 KB Output is correct
10 Correct 108 ms 18524 KB Output is correct
11 Correct 190 ms 18816 KB Output is correct
12 Correct 69 ms 17604 KB Output is correct
13 Correct 65 ms 18156 KB Output is correct
14 Correct 73 ms 18404 KB Output is correct
15 Correct 90 ms 18160 KB Output is correct
16 Correct 67 ms 17996 KB Output is correct
17 Correct 65 ms 18252 KB Output is correct
18 Correct 68 ms 18220 KB Output is correct
19 Correct 71 ms 18260 KB Output is correct
20 Correct 82 ms 18300 KB Output is correct
21 Correct 72 ms 17740 KB Output is correct
22 Correct 63 ms 18252 KB Output is correct
23 Correct 92 ms 18148 KB Output is correct
24 Correct 82 ms 18000 KB Output is correct
25 Correct 66 ms 17996 KB Output is correct
26 Correct 90 ms 17996 KB Output is correct
27 Execution timed out 3037 ms 16896 KB Time limit exceeded
28 Halted 0 ms 0 KB -