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Submission #1084450

# Submission time Handle Problem Language Result Execution time Memory
1084450 2024-09-06T09:10:23 Z SamueleVid Digital Circuit (IOI22_circuit) C++17
0 / 100
 3000 ms 8280 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long

constexpr ll MOD = 1000002022;
constexpr int MAXN = 2e5 + 5;
vector<int> adj[MAXN];
pair<ll, ll> dp[MAXN]; // attivo, spento
int N, M;
vector<int> A;
vector<int> P;
int PW;

vector<ll> mult(vector<ll> &a, vector<ll> &b) { // b size è il minore ed è sempre 2
    int dim = (a.size() - 1) + (b.size() - 1) + 1;
    vector<ll> res(dim);

    for (int i = 0; i < a.size(); i ++) {
        for (int j = 0; j < b.size(); j ++) {
            int sum = (i + j < dim) ? i + j : i + j - dim;
            res[sum] += (a[i] * b[j]) % MOD;
            res[sum] %= MOD;
        }
    }

    return res;
}

pair<ll, ll> merge(int a, int b) {
    vector<ll> poly_a = {dp[a].second, dp[a].first};
    vector<ll> poly_b = {dp[b].second, dp[b].first};

    vector<ll> poly = mult(poly_a, poly_b);

    ll acceso = 0;
    ll spento = 0;
    for (int i = 0; i < poly.size(); i ++) {
        acceso += (poly[i] * i) % MOD;
        acceso %= MOD;
        spento += (poly[i] * (poly.size() - 1 - i)) % MOD;
        spento %= MOD;
    }

    return {acceso, spento};
}

void init(int N, int M, vector<int> P, vector<int> A) {
    :: N = N;
    :: M = M;
    :: A = A;
    :: P = P;
    :: PW = M;
    for (int i = 1; i < N + M; i ++) {
        adj[P[i]].push_back(i);
    }

    // dp 1 based

    for (int i = 0; i < PW; i ++) dp[PW + i] = {A[i], A[i] ^ 1};
    for (int i = PW; i >= 1; i --) dp[i] = merge(2 * i, 2 * i + 1);
}

int count_ways(int L, int R) {
    int x = L + 1;

    A[L - N] ^= 1;
    dp[x] = {A[L - N], A[L - N] ^ 1};
    x /= 2;
    while (x >= 1) {
        dp[x] = merge(2 * x, 2 * x + 1);
    }

    return dp[1].first;
}

Compilation message

circuit.cpp: In function 'std::vector<long long int> mult(std::vector<long long int>&, std::vector<long long int>&)':
circuit.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int i = 0; i < a.size(); i ++) {
      |                     ~~^~~~~~~~~~
circuit.cpp:20:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |         for (int j = 0; j < b.size(); j ++) {
      |                         ~~^~~~~~~~~~
circuit.cpp: In function 'std::pair<long long int, long long int> merge(int, int)':
circuit.cpp:38:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for (int i = 0; i < poly.size(); i ++) {
      |                     ~~^~~~~~~~~~~~~

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3075 ms 4952 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3059 ms 4952 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3075 ms 4952 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3026 ms 8280 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3026 ms 8280 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3059 ms 4952 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3075 ms 4952 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3075 ms 4952 KB Time limit exceeded
2 Halted 0 ms 0 KB -