Submission #1173716

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173716		SpyrosAliv	Digital Circuit (IOI22_circuit)	C++20	2 / 100	180 ms	4788 KiB

circuit

#include <bits/stdc++.h>
using namespace std;

const int MOD = 1e9 + 2022;

int n;
vector<vector<int>> tree;
vector<int> dp;
bool binary = true;
bool sub1 = false;

void init(int N, int M, vector<int> P, vector<int> A) {
    n = N + M;
    if (N == 1) sub1 = true;
    tree.clear();
    tree.resize(n);
    for (int i = 1; i < n; i++) {
        tree[P[i]].push_back(i);
        tree[i].push_back(P[i]);
        if ((i - 1) / 2 != P[i]) {
            binary = false;
        }
    }
    dp.assign(n, 0);
    for (int i = 0; i < M; i++) {
        dp[i + N] = A[i];
    }
}

int count_ways(int L, int R) {
    if (sub1) {
        int tot = 0;
        for (int i = L; i <= R; i++) dp[i] = !dp[i];
        for (int i = 0; i < n; i++) tot += dp[i];
        return tot; 
    }
    return 0;
}

• Subtask 1: 2 / 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