제출 #955517

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
955517		StefanSebez	디지털 회로 (IOI22_circuit)	C++17	22 / 100	3088 ms	17016 KiB

circuit

#include "circuit.h"
#include<bits/stdc++.h>
#include <vector>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define ll long long
const int N=1e5+500;
const ll mod=1000002022;
ll Puta(ll a,ll b){a%=mod,b%=mod;ll x=a*b;x%=mod;return x;}
ll Plus(ll a,ll b){a%=mod,b%=mod;ll x=a+b;x%=mod;return x;}
vector<int>E[2*N+500];
int a[N+500],n,m,P[2*N+500];
ll res[N+500],dp[2*N+500][2],F[2*N+500],F1[2*N+500];
void DFSsetup(int u){
	if(E[u].empty()) return;
	F[u]=E[u].size();
	for(auto i:E[u]){
		DFSsetup(i);
		F[u]=Puta(F[u],F[i]);
	}
	for(auto i:E[u]){
		F1[i]=1;
		for(auto j:E[u]){
			if(j!=i) F1[i]=Puta(F1[i],F[j]);
		}
	}
}
void DFS(int u){
	if(E[u].empty()) return;
	for(auto i:E[u]) DFS(i);
	dp[u][1]=0;
	for(auto i:E[u]) dp[u][1]=Plus(dp[u][1],Puta(dp[i][1],F1[i]));
	//printf("%i: %lld %lld\n",u,dp[u][1],F[u]);
	/*int mask=0;
	while(mask< (1<<(E[u].size()))){
		ll temp1=1,sum=0;
		for(int i=0,temp=mask;i<E[u].size();i++,temp/=2){
			temp1=Puta(temp1,dp[E[u][i]][temp%2]);sum+=temp%2;
		}
		if(mask!=0) dp[u][1]=Plus(dp[u][1],Puta(sum,temp1));
		dp[u][0]=Plus(dp[u][0],Puta(E[u].size()-sum,temp1));
		mask++;
	}*/
	//dp[u][0]=F[u]-dp[u][1];
}
void Update(int v){
	dp[v][1]=1-dp[v][1];
	dp[v][0]=1-dp[v][0];
	int u=P[v];
	while(u!=-1){
		dp[u][1]=0;
		for(auto i:E[u]) dp[u][1]=Plus(dp[u][1],Puta(dp[i][1],F1[i]));
		/*dp[u][1]=dp[u][0]=0;
		int mask=0;
		while(mask< (1<<(E[u].size()))){
			ll temp1=1,sum=0;
			for(int i=0,temp=mask;i<E[u].size();i++,temp/=2){
				temp1=Puta(temp1,dp[E[u][i]][temp%2]);sum+=temp%2;
			}
			if(mask!=0) dp[u][1]=Plus(dp[u][1],Puta(sum,temp1));
			dp[u][0]=Plus(dp[u][0],Puta(E[u].size()-sum,temp1));
			mask++;
		}*/
		u=P[u];
	}
}
void init(int N1, int M1, std::vector<int> P1, std::vector<int> A) {
	n=N1,m=M1;
	for(int i=0;i<P1.size();i++) P[i]=P1[i];
	for(int i=0;i<P1.size();i++){
		E[P[i]].pb(i);
	}
	for(int i=0;i<m;i++){
		dp[n+i][1]=A[i],dp[n+i][0]=1-A[i];
		a[i]=A[i];
		F[n+i]=1;
	}
	DFSsetup(0);
	DFS(0);
	/*for(int i=0;i<=n+m-1;i++){
		printf("%i: %i %i\n",i,dp[i][0],dp[i][1]);
	}*/
	/*for(int i=1;i<=M;i++){

	}*/
}

int count_ways(int L, int R) {
	if(n==1){
		int ct=0;
		for(int i=L;i<=R;i++) a[i-1]=1-a[i-1];
		for(int i=0;i<=m-1;i++) ct+=a[i];
		return ct;
	}
	for(int i=L;i<=R;i++){
		Update(i);
		//dp[i][1]=1-dp[i][1];
		//dp[i][0]=1-dp[i][0];
	}
	//DFS(0);
	/*for(int i=0;i<=n+m-1;i++){
		printf("%i: %i %i\n",i,dp[i][0],dp[i][1]);
	}*/
	return dp[0][1];
}

컴파일 시 표준 에러 (stderr) 메시지

circuit.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>)':
circuit.cpp:71:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |  for(int i=0;i<P1.size();i++) P[i]=P1[i];
      |              ~^~~~~~~~~~
circuit.cpp:72:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |  for(int i=0;i<P1.size();i++){
      |              ~^~~~~~~~~~

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• Subtask 2: 7 / 7
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