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Submission #811011

# Submission time Handle Problem Language Result Execution time Memory
811011 2023-08-06T20:05:11 Z BT21tata Digital Circuit (IOI22_circuit) C++17
0 / 100
 541 ms 10292 KB 
#include "circuit.h"
typedef long long ll;
#include <bits/stdc++.h>
using namespace std;
const ll MOD=1e9+2022;
const int N=2e5+5;

struct tree
{
    ll one, zero, lazy;
}t[4*N];

int nw[N], cnt, old[N], n, m;
ll suff[N], prv=1, a[N];
vector<int>g[N];

void dfs(int v)
{
    if(!g[v].size()) return;
    nw[v]=++cnt;
    old[cnt]=v;
    for(int u : g[v])
        dfs(u);
}

void calc(int v, int p)
{
    if(!g[v].size())
    {
        a[v-n]=prv*suff[nw[p+1]];
        a[v-n]%=MOD;
        return;
    }
    
    for(int u : g[v])
        calc(u, v);
    
    prv*=g[v].size();
    prv%=MOD;
}

void build(int v, int l, int r, vector<int>&state)
{
    if(l==r)
    {
        if(state[l]) t[v]={a[l], 0, 0};
        else t[v]={0, a[l], 0};
        return;
    }
    
    int mid=(l+r)>>1;
    build(v<<1, l, mid, state);
    build(v<<1|1, mid+1, r, state);

    t[v]={(t[v<<1].one+t[v<<1|1].one)%MOD, (t[v<<1].zero+t[v<<1|1].zero)%MOD, 0};
}

void push(int v, int l, int r)
{
    swap(t[v].zero, t[v].one);
    t[v].lazy=0;
    t[v<<1].lazy^=1;
    t[v<<1|1].lazy^=1;
}

void update(int v, int l, int r, int tl, int tr)
{
    if(t[v].lazy) push(v, l, r);
    if(r<tl or tr<l) return;
    if(tl<=l and r<=tr)
    {
        t[v].lazy=1;
        push(v, l, r);
        return;
    }

    int mid=(l+r)>>1;
    update(v<<1, l, mid, tl, tr);
    update(v<<1|1, mid+1, r, tl, tr);

    t[v]={(t[v<<1].one+t[v<<1|1].one)%MOD, (t[v<<1].zero+t[v<<1|1].zero)%MOD, 0};
}

void init(int N, int M, vector<int> p, vector<int> state)
{
    n=N; m=M;
    for(int i=1; i<n+m; i++)
        g[p[i]].push_back(i);

    dfs(0);

    suff[n]=1;
    for(int i=n-1; i>=0; i--)
    {
        suff[i]=suff[i+1]*g[old[i]].size();
        suff[i]%=MOD;
    }

    calc(0, -1);

    build(1, 0, m-1, state);
}

int count_ways(int l, int r)
{
    update(1, 0, m-1, l-n, r-n);
    return t[1].one;
}

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 4944 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 4944 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 4944 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 541 ms 10292 KB 1st lines differ - on the 1st token, expected: '431985922', found: '39753160'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 541 ms 10292 KB 1st lines differ - on the 1st token, expected: '431985922', found: '39753160'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 4944 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 4944 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 4944 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -