Submission #1077479

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077479		Faisal_Saqib	Digital Circuit (IOI22_circuit)	C++17	Compilation error	0 ms	0 KiB

circuit

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const ll NP=2e5+100,mod=1e9+2022;
ll n,m,p[NP],a[NP];
vector<ll> ma[NP];
ll dp[NP][2],lazy[NP],dp1[NP][2];
void compute(int x=0,bool continue_=1)
{
	dp[x][0]=dp[x][1]=0;
	dp1[x][0]=dp1[x][1]=0;
	if(n<=x){
		dp[x][a[x-n]]=1;
		dp1[x][1-a[x-n]]=1;
		return;
	}
	int sz=ma[x].size();
	vector<int> tmp(sz+1);
	// DP 1
	tmp[0]=1;
	for(auto y:ma[x])
	{
		if(continue_)
			compute(y);
		for(int j=sz;j>=0;j--)
		{
			if(j==0)
			{
				tmp[j]=(tmp[j]*dp[y][0])%mod;
			}
			else
			{
				tmp[j]=(tmp[j]*dp[y][0])%mod;
				tmp[j]=(tmp[j] + ((tmp[j-1]*dp[y][1])%mod))%mod;
			}
		}
	}
	int sm=0;
	for(int j=sz;j>=1;j--)
	{
		sm = ( sm + tmp[j] ) % mod;
		dp[x][1] = ( dp[x][1] + sm ) % mod;
	}
	sm=tmp[0];
	for(int j=1;j<=sz;j++)
	{
		dp[x][0] = ( dp[x][0] + sm ) % mod;
		sm = ( sm + tmp[j] ) % mod;
	}


	// Dp 1
	for(int j=0;j<=sz;j++)tmp[j]=0;
	tmp[0]=1;
	for(auto y:ma[x])
	{
		for(int j=sz;j>=0;j--)
		{
			if(j==0)
			{
				tmp[j]=(tmp[j]*dp1[y][0])%mod;
			}
			else
			{
				tmp[j]=(tmp[j]*dp1[y][0])%mod;
				tmp[j]=(tmp[j] + ((tmp[j-1]*dp1[y][1])%mod))%mod;
			}
		}
	}
	sm=0;
	for(int j=sz;j>=1;j--)
	{
		sm = ( sm + tmp[j] ) % mod;
		dp1[x][1] = ( dp1[x][1] + sm ) % mod;
	}
	sm=tmp[0];
	for(int j=1;j<=sz;j++)
	{
		dp1[x][0] = ( dp1[x][0] + sm ) % mod;
		sm = ( sm + tmp[j] ) % mod;
	}
}
void prepro(int x=0){
	if(n<=x)
	{
		lc[x]=rc[x]=-1;
		return;
	}
	lc[x]=ma[x][0];
	rc[x]=ma[x][1];
	prepro(lc[x]);
	prepro(rc[x]);
}
void push(int v)
{
	lazy[lc[v]]^=lazy[v];
	lazy[rc[v]]^=lazy[v];
	if(lazy[v])
	{
		swap(dp[v][0],dp1[v][0]);
		swap(dp[v][1],dp1[v][1]);
	}
}
void update(int v,int l,int r,int ql,int qr)
{
	if(qr<l or r<ql) // nothing changes here
		return;
	if(ql<=l and r<=qr) // whole subtree to be updated
	{
		lazy[v]^=1;
		return;
	}
	push(v);
	int mid=(l+r)/2;
	update(lc[v],l,mid,ql,qr);
	update(rc[v],mid+1,r,ql,qr);
	compute(v,0);
}
void init(int N, int M, std::vector<int> P, std::vector<int> A)
{
	n=N,m=M;
	for(ll i=0;i<n+m;i++)
	{
		p[i]=P[i];
		if(p[i]!=-1)ma[p[i]].push_back(i);
	}
	for(ll j=0;j<m;j++)a[j]=A[j];
	prepro();
	compute();
}

int count_ways(int L, int R)
{
	for(ll i=L-n;i<=R-n;i++)a[i]=(a[i]?0:1);
	update(0,0,m-1,L-n,R-n);
	push(0);
	return (int)dp[0][1];
}

Compilation message (stderr)

circuit.cpp: In function 'void prepro(int)':
circuit.cpp:86:3: error: 'lc' was not declared in this scope; did you mean 'll'?
   86 |   lc[x]=rc[x]=-1;
      |   ^~
      |   ll
circuit.cpp:86:9: error: 'rc' was not declared in this scope
   86 |   lc[x]=rc[x]=-1;
      |         ^~
circuit.cpp:89:2: error: 'lc' was not declared in this scope; did you mean 'll'?
   89 |  lc[x]=ma[x][0];
      |  ^~
      |  ll
circuit.cpp:90:2: error: 'rc' was not declared in this scope
   90 |  rc[x]=ma[x][1];
      |  ^~
circuit.cpp: In function 'void push(int)':
circuit.cpp:96:7: error: 'lc' was not declared in this scope; did you mean 'll'?
   96 |  lazy[lc[v]]^=lazy[v];
      |       ^~
      |       ll
circuit.cpp:97:7: error: 'rc' was not declared in this scope
   97 |  lazy[rc[v]]^=lazy[v];
      |       ^~
circuit.cpp: In function 'void update(int, int, int, int, int)':
circuit.cpp:115:9: error: 'lc' was not declared in this scope; did you mean 'l'?
  115 |  update(lc[v],l,mid,ql,qr);
      |         ^~
      |         l
circuit.cpp:116:9: error: 'rc' was not declared in this scope; did you mean 'r'?
  116 |  update(rc[v],mid+1,r,ql,qr);
      |         ^~
      |         r