Submission #633068

#	Time	Username	Problem	Language	Result	Execution time	Memory
633068		tutis	디지털 회로 (IOI22_circuit)	C++17	0 / 100	398 ms	5044 KiB

circuit

#include "circuit.h"
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll mod = 1000002022;
vector<pair<ll, ll>>a;

vector<int>P;
vector<int>A;
vector<vector<int>>c;
int N, M;
vector<bool> F(200009, false);
vector<int> L, R;
void calc(int i)
{
    int d = c[i].size();
    vector<ll> k(d + 2, 0ll);
    ll v = 1;
    a[i] = {0ll, 0ll};
    for (int j : c[i])
    {
        int v0 = a[j].first;
        int v1 = a[j].second;
        if (F[j])
            swap(v0, v1);
        ll a1_ = 0;
        ll a0_ = 0;
        a1_ = a[i].second * (v0 + v1) + v * v1;
        a0_ = a[i].first * (v0 + v1) + v * v0;
        a[i].first = a0_;
        a[i].second = a1_;
        v *= (v0 + v1);
        a[i].first %= mod;
        a[i].second %= mod;
        v %= mod;
    }
}
vector<ll>D;
void init(int N_, int M_, vector<int> P_, vector<int> A_) {
    P = P_;
    A = A_;
    N = N_;
    M = M_;
    c = vector<vector<int>>(N + M);
    for (int i = 1; i < N + M; i++)
        c[P[i]].push_back(i);
    ll prod[N + M];
    {
        function<void(int)>dfs = [&](int i)->void
        {
            prod[i] = max(1, (int)c[i].size());
            for (int j : c[i])
            {
                dfs(j);
                prod[i] *= prod[j];
                prod[i] %= mod;
            }
        };
        dfs(0);
    }
    D = vector<ll>(N + M);
    {
        function<void(int, ll)>dfs = [&](int i, ll ss)->void
        {
            D[i] = ss;
            vector<ll>s;
            int cnt = 0;
            for (int j : c[i])
            {
                s.push_back(prod[j]);
                cnt++;
            }
            vector<ll>t = s;
            reverse(t.begin(), t.end());
            s.insert(s.begin(), 1);
            t.insert(t.begin(), 1);
            for (int i = 1; i < (int)s.size(); i++)
                s[i] = (s[i - 1] * s[i]) % mod;
            for (int i = 1; i < (int)t.size(); i++)
                t[i] = (t[i - 1] * t[i]) % mod;
            int k = 0;
            for (int j : c[i])
            {
                ll s_ = ss;
                s_ *= s[k];
                s_ %= mod;
                s_ *= t[cnt - 1 - k];
                s_ %= mod;
                dfs(j, s_);
                k++;
            }
        };
        dfs(0, 1);
    }
}
int count_ways(int X, int Y) {
    X -= N;
    Y -= N;
    for (int i = X; i <= Y; i++)
        A[i] ^= 1;
    ll ret = 0;
    for (int i = X; i <= Y; i++)
        if (A[i] == 1)
        {
            ret += D[i + N];
            ret %= mod;
        }
    return (int)ret;
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 7
• Subtask 3: 0 / 9
• Subtask 4: 0 / 4
• Subtask 5: 0 / 12
• Subtask 6: 0 / 27
• Subtask 7: 0 / 28
• Subtask 8: 0 / 11