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Submission #777413

# Submission time Handle Problem Language Result Execution time Memory
777413 2023-07-09T08:11:38 Z alexander707070 Digital Circuit (IOI22_circuit) C++17
7 / 100
 3000 ms 14992 KB 
#include<bits/stdc++.h>
#define MAXN 500007
using namespace std;

const long long mod=1000002022;

int n;
long long black[MAXN],white[MAXN];
long long prod[MAXN];
vector<int> v[MAXN];

void dfs(int x){
    if(v[x].size()==0){
        prod[x]=1; return;
    }

    prod[x]=1;
    for(int i=0;i<v[x].size();i++){
        dfs(v[x][i]);
        prod[x]*=prod[v[x][i]];
        prod[x]%=mod;
    }
    prod[x]*=2; prod[x]%=mod;

    black[x]=0;
    /* c=2 */ black[x]+=black[v[x][0]]*black[v[x][1]];
    /* c=1 */ black[x]+=black[v[x][0]]*black[v[x][1]]+black[v[x][0]]*white[v[x][1]]+white[v[x][0]]*black[v[x][1]];
    black[x]%=mod;

    white[x]=(prod[x]-black[x]+mod)%mod;
}

void init(int N, int M,vector<int> P,vector<int> A){
    n=N+M;
    for(int i=1;i<n;i++){
        v[P[i]].push_back(i);
    }
    for(int i=0;i<M;i++){
        if(A[i]==0){
            black[i+N]=0; white[i+N]=1;
        }else{
            black[i+N]=1; white[i+N]=0;
        }
    }
}

int count_ways(int L, int R){
    for(int i=L;i<=R;i++){
        swap(black[i],white[i]);
    }
    dfs(0);
    return black[0];
}

/*
int main(){
    init(15, 16, {-1, 0, 0, 1, 1, 2, 2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15}, {0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1});
}
*/

Compilation message

circuit.cpp: In function 'void dfs(int)':
circuit.cpp:18:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(int i=0;i<v[x].size();i++){
      |                 ~^~~~~~~~~~~~

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 11984 KB Output is correct
2 Incorrect 5 ms 11984 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11984 KB Output is correct
2 Correct 5 ms 12072 KB Output is correct
3 Correct 5 ms 12112 KB Output is correct
4 Correct 6 ms 12000 KB Output is correct
5 Correct 6 ms 12112 KB Output is correct
6 Correct 6 ms 12100 KB Output is correct
7 Correct 6 ms 12112 KB Output is correct
8 Correct 7 ms 12068 KB Output is correct
9 Correct 7 ms 12060 KB Output is correct
10 Correct 6 ms 12208 KB Output is correct
11 Correct 7 ms 12112 KB Output is correct
12 Correct 6 ms 12112 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 11984 KB Output is correct
2 Incorrect 5 ms 11984 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3077 ms 14992 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 3077 ms 14992 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11984 KB Output is correct
2 Correct 5 ms 12072 KB Output is correct
3 Correct 5 ms 12112 KB Output is correct
4 Correct 6 ms 12000 KB Output is correct
5 Correct 6 ms 12112 KB Output is correct
6 Correct 6 ms 12100 KB Output is correct
7 Correct 6 ms 12112 KB Output is correct
8 Correct 7 ms 12068 KB Output is correct
9 Correct 7 ms 12060 KB Output is correct
10 Correct 6 ms 12208 KB Output is correct
11 Correct 7 ms 12112 KB Output is correct
12 Correct 6 ms 12112 KB Output is correct
13 Execution timed out 3077 ms 14992 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 11984 KB Output is correct
2 Incorrect 5 ms 11984 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 11984 KB Output is correct
2 Incorrect 5 ms 11984 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
3 Halted 0 ms 0 KB -