Submission #763740

#	Time	Username	Problem	Language	Result	Execution time	Memory
763740		raysh07	Digital Circuit (IOI22_circuit)	C++17	Compilation error	0 ms	0 KiB

circuit

#include "circuit.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long

const int N = 2e5 + 69;
const int mod = 1e9 + 2022;
vector <int> adj[N];
int n, m;
int w1[N], sub[N];

int power(int x, int y){
    if (y==0) return 1;
    
    int v = power(y/2);
    v *= v; v %= mod;
    
    if (y & 1) return v * x % mod;
    else return v;
}

void dfs(int u){
    if (u >= n) sub[u] = 1;
    for (int v : adj[u]){
        dfs(v);
        sub[u] += sub[v];
    }
    
    if (u >= n) return;
    for (int v : adj[u]){
        w1[u] += w1[v] * power(2, sub[u] - sub[v]);
        w1[u] %= mod;
    }
}

void init(int32_t N, int32_t M, vector<int32_t> p, vector<int32_t> a) {
    n = N;
    m = M;
    for (int i = 1; i < n + m; i++){
        adj[p[i]].push_back(i);
    }
    
    for (int i = 0; i < m; i++){
        if (a[i] == 1)
        w1[i + n] = 1;
    }
}

int32_t count_ways(int32_t l, int32_t r) {
    for (int i = l + n; i <= r + n; i++){
        w1[i] ^= 1;
    }
    
    dfs(0);
    
    return (int32_t) w1[0];
}

Compilation message (stderr)

circuit.cpp: In function 'long long int power(long long int, long long int)':
circuit.cpp:15:22: error: too few arguments to function 'long long int power(long long int, long long int)'
   15 |     int v = power(y/2);
      |                      ^
circuit.cpp:12:5: note: declared here
   12 | int power(int x, int y){
      |     ^~~~~