oj.uz

Submission #790522

# Submission time Handle Problem Language Result Execution time Memory
790522 2023-07-22T19:15:37 Z borisAngelov Digital Circuit (IOI22_circuit) C++17
52 / 100
 897 ms 29200 KB 
#include "circuit.h"

#include <bits/stdc++.h>

using namespace std;

const int maxn = 200005;
const long long mod = 1e9 + 2022;

int n, m;

vector<int> g[maxn];

long long contribution[maxn];

long long power(long long a, long long b)
{
    if (b == 0)
    {
        return 1LL;
    }

    if (b % 2 == 0)
    {
        long long result = power(a, b / 2);
        return (result * result) % mod;
    }

    return (a * power(a, b - 1)) % mod;
}

void dfs(int node, int dep)
{
    if (g[node].empty())
    {
        contribution[node] = power(2, n - dep);
        return;
    }

    for (int i = 0; i < g[node].size(); ++i)
    {
        dfs(g[node][i], dep + 1);
    }
}

long long preffix[maxn];

long long get_sum(int l, int r)
{
    if (l == 0)
    {
        return preffix[r];
    }

    return (preffix[r] - preffix[l - 1] + mod) % mod;
}

struct segment_tree
{
    struct vertex
    {
        long long sum;
        bool lazy;

        vertex()
        {
            sum = 0;
            lazy = false;
        }

        vertex(long long _sum, bool _lazy)
        {
            sum = _sum;
            lazy = _lazy;
        }
    };

    vertex tree[4 * maxn];

    void push_lazy(int node, int l, int r)
    {
        if (tree[node].lazy == true)
        {
            tree[node].sum = (get_sum(l, r) - tree[node].sum + mod) % mod;

            if (l != r)
            {
                tree[2 * node].lazy = 1 - tree[2 * node].lazy;
                tree[2 * node + 1].lazy = 1 - tree[2 * node + 1].lazy;
            }

            tree[node].lazy = false;
        }
    }

    void update(int node, int l, int r, int ql, int qr)
    {
        push_lazy(node, l, r);

        if (l > qr || r < ql)
        {
            return;
        }

        if (ql <= l && r <= qr)
        {
            tree[node].lazy = true;
            push_lazy(node, l, r);
            return;
        }

        int mid = (l + r) / 2;

        update(2 * node, l, mid, ql, qr);
        update(2 * node + 1, mid + 1, r, ql, qr);

        tree[node].sum = (tree[2 * node].sum + tree[2 * node + 1].sum) % mod;
    }

    void update(int l, int r)
    {
        update(1, 0, m - 1, l, r);
    }
};

segment_tree tree;

void init(int N, int M, vector<int> P, vector<int> A)
{
    n = N;
    m = M;

    for (int i = 1; i < P.size(); ++i)
    {
        g[P[i]].push_back(i);
    }

    dfs(0, 0);

    for (int i = 0; i < m; ++i)
    {
        preffix[i] = contribution[i + n];

        if (i > 0)
        {
            preffix[i] += preffix[i - 1];
        }

        preffix[i] %= mod;
    }

    for (int i = 0; i < m; ++i)
    {
        if (A[i] == 1)
        {
            tree.update(i, i);
        }
    }
}

int count_ways(int L, int R)
{
    int l = L - n;
    int r = R - n;

    tree.update(l, r);

    return tree.tree[1].sum;
}

Compilation message

circuit.cpp: In function 'void dfs(int, int)':
circuit.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for (int i = 0; i < g[node].size(); ++i)
      |                     ~~^~~~~~~~~~~~~~~~
circuit.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>)':
circuit.cpp:133:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  133 |     for (int i = 1; i < P.size(); ++i)
      |                     ~~^~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 17488 KB Output is correct
2 Correct 8 ms 17488 KB Output is correct
3 Correct 8 ms 17488 KB Output is correct
4 Correct 8 ms 17488 KB Output is correct
5 Correct 8 ms 17460 KB Output is correct
6 Correct 8 ms 17480 KB Output is correct
7 Correct 7 ms 17488 KB Output is correct
8 Correct 7 ms 17488 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 17476 KB Output is correct
2 Correct 7 ms 17488 KB Output is correct
3 Correct 7 ms 17488 KB Output is correct
4 Correct 7 ms 17488 KB Output is correct
5 Correct 7 ms 17524 KB Output is correct
6 Correct 8 ms 17488 KB Output is correct
7 Correct 9 ms 17560 KB Output is correct
8 Correct 9 ms 17472 KB Output is correct
9 Correct 8 ms 17488 KB Output is correct
10 Correct 8 ms 17616 KB Output is correct
11 Correct 8 ms 17616 KB Output is correct
12 Correct 8 ms 17488 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 17488 KB Output is correct
2 Correct 8 ms 17488 KB Output is correct
3 Correct 8 ms 17488 KB Output is correct
4 Correct 8 ms 17488 KB Output is correct
5 Correct 8 ms 17460 KB Output is correct
6 Correct 8 ms 17480 KB Output is correct
7 Correct 7 ms 17488 KB Output is correct
8 Correct 7 ms 17488 KB Output is correct
9 Correct 7 ms 17476 KB Output is correct
10 Correct 7 ms 17488 KB Output is correct
11 Correct 7 ms 17488 KB Output is correct
12 Correct 7 ms 17488 KB Output is correct
13 Correct 7 ms 17524 KB Output is correct
14 Correct 8 ms 17488 KB Output is correct
15 Correct 9 ms 17560 KB Output is correct
16 Correct 9 ms 17472 KB Output is correct
17 Correct 8 ms 17488 KB Output is correct
18 Correct 8 ms 17616 KB Output is correct
19 Correct 8 ms 17616 KB Output is correct
20 Correct 8 ms 17488 KB Output is correct
21 Incorrect 8 ms 17488 KB 1st lines differ - on the 1st token, expected: '759476520', found: '833967706'
22 Halted 0 ms 0 KB -

Subtask #4
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 594 ms 19832 KB Output is correct
2 Correct 483 ms 22128 KB Output is correct
3 Correct 728 ms 22088 KB Output is correct
4 Correct 718 ms 22216 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 594 ms 19832 KB Output is correct
2 Correct 483 ms 22128 KB Output is correct
3 Correct 728 ms 22088 KB Output is correct
4 Correct 718 ms 22216 KB Output is correct
5 Correct 555 ms 19856 KB Output is correct
6 Correct 807 ms 22088 KB Output is correct
7 Correct 702 ms 22124 KB Output is correct
8 Correct 897 ms 22144 KB Output is correct
9 Correct 371 ms 17616 KB Output is correct
10 Correct 576 ms 17744 KB Output is correct
11 Correct 631 ms 17744 KB Output is correct
12 Correct 714 ms 17744 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 17476 KB Output is correct
2 Correct 7 ms 17488 KB Output is correct
3 Correct 7 ms 17488 KB Output is correct
4 Correct 7 ms 17488 KB Output is correct
5 Correct 7 ms 17524 KB Output is correct
6 Correct 8 ms 17488 KB Output is correct
7 Correct 9 ms 17560 KB Output is correct
8 Correct 9 ms 17472 KB Output is correct
9 Correct 8 ms 17488 KB Output is correct
10 Correct 8 ms 17616 KB Output is correct
11 Correct 8 ms 17616 KB Output is correct
12 Correct 8 ms 17488 KB Output is correct
13 Correct 594 ms 19832 KB Output is correct
14 Correct 483 ms 22128 KB Output is correct
15 Correct 728 ms 22088 KB Output is correct
16 Correct 718 ms 22216 KB Output is correct
17 Correct 555 ms 19856 KB Output is correct
18 Correct 807 ms 22088 KB Output is correct
19 Correct 702 ms 22124 KB Output is correct
20 Correct 897 ms 22144 KB Output is correct
21 Correct 371 ms 17616 KB Output is correct
22 Correct 576 ms 17744 KB Output is correct
23 Correct 631 ms 17744 KB Output is correct
24 Correct 714 ms 17744 KB Output is correct
25 Correct 812 ms 24392 KB Output is correct
26 Correct 728 ms 24452 KB Output is correct
27 Correct 811 ms 24508 KB Output is correct
28 Correct 788 ms 24556 KB Output is correct
29 Correct 861 ms 29200 KB Output is correct
30 Correct 774 ms 29188 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 17488 KB Output is correct
2 Correct 8 ms 17488 KB Output is correct
3 Correct 8 ms 17488 KB Output is correct
4 Correct 8 ms 17488 KB Output is correct
5 Correct 8 ms 17460 KB Output is correct
6 Correct 8 ms 17480 KB Output is correct
7 Correct 7 ms 17488 KB Output is correct
8 Correct 7 ms 17488 KB Output is correct
9 Correct 7 ms 17476 KB Output is correct
10 Correct 7 ms 17488 KB Output is correct
11 Correct 7 ms 17488 KB Output is correct
12 Correct 7 ms 17488 KB Output is correct
13 Correct 7 ms 17524 KB Output is correct
14 Correct 8 ms 17488 KB Output is correct
15 Correct 9 ms 17560 KB Output is correct
16 Correct 9 ms 17472 KB Output is correct
17 Correct 8 ms 17488 KB Output is correct
18 Correct 8 ms 17616 KB Output is correct
19 Correct 8 ms 17616 KB Output is correct
20 Correct 8 ms 17488 KB Output is correct
21 Incorrect 8 ms 17488 KB 1st lines differ - on the 1st token, expected: '759476520', found: '833967706'
22 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 17488 KB Output is correct
2 Correct 8 ms 17488 KB Output is correct
3 Correct 8 ms 17488 KB Output is correct
4 Correct 8 ms 17488 KB Output is correct
5 Correct 8 ms 17460 KB Output is correct
6 Correct 8 ms 17480 KB Output is correct
7 Correct 7 ms 17488 KB Output is correct
8 Correct 7 ms 17488 KB Output is correct
9 Correct 7 ms 17476 KB Output is correct
10 Correct 7 ms 17488 KB Output is correct
11 Correct 7 ms 17488 KB Output is correct
12 Correct 7 ms 17488 KB Output is correct
13 Correct 7 ms 17524 KB Output is correct
14 Correct 8 ms 17488 KB Output is correct
15 Correct 9 ms 17560 KB Output is correct
16 Correct 9 ms 17472 KB Output is correct
17 Correct 8 ms 17488 KB Output is correct
18 Correct 8 ms 17616 KB Output is correct
19 Correct 8 ms 17616 KB Output is correct
20 Correct 8 ms 17488 KB Output is correct
21 Incorrect 8 ms 17488 KB 1st lines differ - on the 1st token, expected: '759476520', found: '833967706'
22 Halted 0 ms 0 KB -