Submission #910907

#	Time	Username	Problem	Language	Result	Execution time	Memory
910907		tnun	Digital Circuit (IOI22_circuit)	C++17	2 / 100	3045 ms	10080 KiB

circuit

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
int N,M;
vector<int> P;
vector<int> A;
ll int mod=1000002022;
vector<int> adj[200050];
ll int one[200050]={0};
ll int zer[200050]={0};
void dfs(){
	for(int node=N+M-1;node>=0;node--){
	if(node>=N){
		if(A[node-N]==1){
			one[node]=1;
			zer[node]=0;
		}else{
			one[node]=0;
			zer[node]=1;
		}
		continue;
	}
	ll int all=1;
	for(int i=0;i<adj[node].size();i++){
		all*=(one[adj[node][i]]+zer[adj[node][i]]);
		all=all%mod;
	}
	for(int i=0;i<adj[node].size();i++){
		one[node]+=(one[adj[node][i]])*all/(one[adj[node][i]]+zer[adj[node][i]]);
		one[node]=one[node]%mod;
	}
	all=all*adj[node].size();
	all=all%mod;
	zer[node]=all-one[node];
}
}
int count_ways(int l,int r){
	memset(one, 0, sizeof(one));
	memset(zer, 0, sizeof(zer));
	for(int i=l;i<=r;i++){
		A[i-N]=(A[i-N]+1)%2;
	}
//	for(int i=0;i<A.size();i++){
//		cout<<A[i]<<" ";
//	}
//	cout<<endl;
	dfs();
//	for(int i=0;i<N+M;i++){
//		cout<<i<<" "<<one[i]<<" "<<zer[i]<<endl;
//	}
	return one[0];
}
void init(int n,int m, vector<int> p,vector<int> a){
	N=n;
	M=m;
	for(int i=0;i<p.size();i++){
		P.pb(p[i]);
	}
	for(int i=0;i<a.size();i++){
		A.pb(a[i]);
	}
	for(int i=1;i<N+M;i++){
		adj[P[i]].pb(i);
	}
}

Compilation message (stderr)

circuit.cpp: In function 'void dfs()':
circuit.cpp:25:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |  for(int i=0;i<adj[node].size();i++){
      |              ~^~~~~~~~~~~~~~~~~
circuit.cpp:29:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for(int i=0;i<adj[node].size();i++){
      |              ~^~~~~~~~~~~~~~~~~
circuit.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>)':
circuit.cpp:57:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |  for(int i=0;i<p.size();i++){
      |              ~^~~~~~~~~
circuit.cpp:60:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |  for(int i=0;i<a.size();i++){
      |              ~^~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 0 / 7
• Subtask 3: 0 / 9
• Subtask 4: 0 / 4
• Subtask 5: 0 / 12
• Subtask 6: 0 / 27
• Subtask 7: 0 / 28
• Subtask 8: 0 / 11