Submission #714552

#	Time	Username	Problem	Language	Result	Execution time	Memory
714552		firewater	Mechanical Doll (IOI18_doll)	C++14	0 / 100	1 ms	332 KiB

doll

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#include <vector>
#define ll long long
#define N 202300
#include "doll.h"
using namespace std;
vector<int>ans,P,Q;
int w,n,nn,a[N];
int dfs(int L,int R,int l,int r)
{
	if(l==r){
		if(l==1){
			ans[a[++w]]=0;
			return a[w];
		}
		return a[++w];
	}
	int x=P.size(),mid=L+R>>1;
	P.push_back(0);
	Q.push_back(0);
	if(r<=mid){
		Q[x]=-1;
		P[x]=dfs(L,mid,l,r);
	}
	else{
		Q[x]=dfs(mid+1,R,mid+1,r);
		P[x]=dfs(L,mid,l,mid);
	}
	return -x-1;
}
void create_circuit(int M, std::vector<int> A)
{
	n=A.size();
	for(int i=1;i<=n;++i)
		a[i]=A[i-1];
	nn=1;
	while(nn<n)nn<<=1;
	
	
	if(n==1){
		ans.push_back(a[1]);
		for(int i=1;i<=M;++i)
			ans.push_back(0);
	}
	else{
		for(int i=0;i<=M;++i)
			ans.push_back(-1);
		dfs(1,nn,1,n);
	}
	answer(ans,P,Q);
	return;
}

Compilation message (stderr)

doll.cpp: In function 'int dfs(int, int, int, int)':
doll.cpp:21:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   21 |  int x=P.size(),mid=L+R>>1;
      |                     ~^~

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56