oj.uz

Submission #951657

# Submission time Handle Problem Language Result Execution time Memory
951657 2024-03-22T09:02:01 Z qwe1rt1yuiop1 Fish 2 (JOI22_fish2) C++14
25 / 100
 4000 ms 9836 KB 
#include <bits/stdc++.h>
#define int long long
// using ll = long long;
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using namespace std;
using pii = pair<int, int>;

vector<int> ll, rr, v, p, ok;

void dfs(int x, int l, int r)
{
    ok[x] = 1;
    if (ll[x] != -1 && v[x] <= p[x - 1] - p[l - 1])
        dfs(ll[x], l, x - 1);
    if (rr[x] != -1 && v[x] <= p[r] - p[x])
        dfs(rr[x], x + 1, r);
}

void solve()
{
    int n;
    cin >> n;
    v.assign(n + 1, 0);
    for (int i = 1; i <= n; ++i)
        cin >> v[i];
    auto v0 = v;
    int n0 = n;

    int q;
    cin >> q;
    while (q--)
    {
        int t, a, b;
        cin >> t >> a >> b;
        if (t == 1)
        {
            v0[a] = b;
            continue;
        }
        v.assign(1, 0);
        for (int i = a; i <= b; ++i)
            v.emplace_back(v0[i]);
        n = sz(v) - 1;
        p = v;
        for (int i = 1; i <= n; ++i)
            p[i] += p[i - 1];
        v[0] = INT_MAX, v.emplace_back(INT_MAX);
        --v[0];

        vector<int> l(n + 2, -1), r(n + 2, -1);

        vector<int> stk;
        stk.emplace_back(0);
        for (int i = 1; i <= n; ++i)
        {
            while (v[stk.back()] < v[i])
                stk.pop_back();
            l[i] = stk.back();
            stk.emplace_back(i);
        }
        stk.clear();
        stk.emplace_back(n + 1);
        for (int i = n; i >= 1; --i)
        {
            while (v[stk.back()] <= v[i])
                stk.pop_back();
            r[i] = stk.back();
            stk.emplace_back(i);
        }

        ll.assign(n + 2, -1), rr = ll;

        for (int i = 1; i <= n; ++i)
        {
            if (v[l[i]] < v[r[i]])
            {
                assert(rr[l[i]] == -1);
                rr[l[i]] = i;
            }
            else
            {
                assert(ll[r[i]] == -1);
                ll[r[i]] = i;
            }
        }

        ok.assign(n + 1, 0);
        dfs(rr[0], 1, n);
        cout << accumulate(all(ok), 0) << '\n';
    }
}

/*
 */

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);

    solve();

    return 0;
}

Compilation message

fish2.cpp: In function 'void solve()':
fish2.cpp:28:9: warning: unused variable 'n0' [-Wunused-variable]
   28 |     int n0 = n;
      |         ^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 3 ms 348 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 10 ms 6616 KB Output is correct
3 Correct 8 ms 6984 KB Output is correct
4 Correct 9 ms 6732 KB Output is correct
5 Correct 10 ms 6676 KB Output is correct
6 Correct 14 ms 6612 KB Output is correct
7 Correct 9 ms 6732 KB Output is correct
8 Correct 14 ms 6616 KB Output is correct
9 Correct 9 ms 6732 KB Output is correct
10 Correct 10 ms 6732 KB Output is correct
11 Correct 8 ms 6732 KB Output is correct
12 Correct 10 ms 6728 KB Output is correct
13 Correct 12 ms 6732 KB Output is correct
14 Correct 10 ms 6732 KB Output is correct
15 Correct 13 ms 6608 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 3 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 10 ms 6616 KB Output is correct
23 Correct 8 ms 6984 KB Output is correct
24 Correct 9 ms 6732 KB Output is correct
25 Correct 10 ms 6676 KB Output is correct
26 Correct 14 ms 6612 KB Output is correct
27 Correct 9 ms 6732 KB Output is correct
28 Correct 14 ms 6616 KB Output is correct
29 Correct 9 ms 6732 KB Output is correct
30 Correct 10 ms 6732 KB Output is correct
31 Correct 8 ms 6732 KB Output is correct
32 Correct 10 ms 6728 KB Output is correct
33 Correct 12 ms 6732 KB Output is correct
34 Correct 10 ms 6732 KB Output is correct
35 Correct 13 ms 6608 KB Output is correct
36 Correct 209 ms 8576 KB Output is correct
37 Correct 360 ms 8592 KB Output is correct
38 Correct 408 ms 8124 KB Output is correct
39 Correct 93 ms 8432 KB Output is correct
40 Correct 468 ms 8292 KB Output is correct
41 Correct 863 ms 9716 KB Output is correct
42 Correct 1104 ms 8692 KB Output is correct
43 Correct 664 ms 8816 KB Output is correct
44 Correct 781 ms 8580 KB Output is correct
45 Correct 236 ms 8372 KB Output is correct
46 Correct 368 ms 8920 KB Output is correct
47 Correct 460 ms 8924 KB Output is correct
48 Correct 270 ms 7340 KB Output is correct
49 Correct 879 ms 8472 KB Output is correct
50 Correct 445 ms 9272 KB Output is correct
51 Correct 2033 ms 8708 KB Output is correct
52 Correct 2103 ms 9220 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 10 ms 6616 KB Output is correct
3 Correct 8 ms 6984 KB Output is correct
4 Correct 9 ms 6732 KB Output is correct
5 Correct 10 ms 6676 KB Output is correct
6 Correct 14 ms 6612 KB Output is correct
7 Correct 9 ms 6732 KB Output is correct
8 Correct 14 ms 6616 KB Output is correct
9 Correct 9 ms 6732 KB Output is correct
10 Correct 10 ms 6732 KB Output is correct
11 Correct 8 ms 6732 KB Output is correct
12 Correct 10 ms 6728 KB Output is correct
13 Correct 12 ms 6732 KB Output is correct
14 Correct 10 ms 6732 KB Output is correct
15 Correct 13 ms 6608 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Execution timed out 4058 ms 9836 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 10 ms 6616 KB Output is correct
3 Correct 8 ms 6984 KB Output is correct
4 Correct 9 ms 6732 KB Output is correct
5 Correct 10 ms 6676 KB Output is correct
6 Correct 14 ms 6612 KB Output is correct
7 Correct 9 ms 6732 KB Output is correct
8 Correct 14 ms 6616 KB Output is correct
9 Correct 9 ms 6732 KB Output is correct
10 Correct 10 ms 6732 KB Output is correct
11 Correct 8 ms 6732 KB Output is correct
12 Correct 10 ms 6728 KB Output is correct
13 Correct 12 ms 6732 KB Output is correct
14 Correct 10 ms 6732 KB Output is correct
15 Correct 13 ms 6608 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Execution timed out 4019 ms 7488 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 3 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 10 ms 6616 KB Output is correct
23 Correct 8 ms 6984 KB Output is correct
24 Correct 9 ms 6732 KB Output is correct
25 Correct 10 ms 6676 KB Output is correct
26 Correct 14 ms 6612 KB Output is correct
27 Correct 9 ms 6732 KB Output is correct
28 Correct 14 ms 6616 KB Output is correct
29 Correct 9 ms 6732 KB Output is correct
30 Correct 10 ms 6732 KB Output is correct
31 Correct 8 ms 6732 KB Output is correct
32 Correct 10 ms 6728 KB Output is correct
33 Correct 12 ms 6732 KB Output is correct
34 Correct 10 ms 6732 KB Output is correct
35 Correct 13 ms 6608 KB Output is correct
36 Correct 209 ms 8576 KB Output is correct
37 Correct 360 ms 8592 KB Output is correct
38 Correct 408 ms 8124 KB Output is correct
39 Correct 93 ms 8432 KB Output is correct
40 Correct 468 ms 8292 KB Output is correct
41 Correct 863 ms 9716 KB Output is correct
42 Correct 1104 ms 8692 KB Output is correct
43 Correct 664 ms 8816 KB Output is correct
44 Correct 781 ms 8580 KB Output is correct
45 Correct 236 ms 8372 KB Output is correct
46 Correct 368 ms 8920 KB Output is correct
47 Correct 460 ms 8924 KB Output is correct
48 Correct 270 ms 7340 KB Output is correct
49 Correct 879 ms 8472 KB Output is correct
50 Correct 445 ms 9272 KB Output is correct
51 Correct 2033 ms 8708 KB Output is correct
52 Correct 2103 ms 9220 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Execution timed out 4058 ms 9836 KB Time limit exceeded
55 Halted 0 ms 0 KB -