Submission #416533

#	Time	Username	Problem	Language	Result	Execution time	Memory
416533		sofapuden	Mechanical Doll (IOI18_doll)	C++14	0 / 100	1 ms	332 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
 
using namespace std;
 
vector<int> X, Y, A, FLG;
int h, v, n;

const int UNDEF = 7e6+5;

int cn = 0;
int cnt = 0;

void fin(int x, int p, int am, int val, bool ok){
	if(!am){
		cnt--;
		if(ok){
			Y[p] = -1;
		}
		else X[p] = -1;
		fin(0,0,n,v,0);
		return;
	}
	if(!val){
		cnt--;
		if(ok){
			Y[p] = A[cn++];
		}
		else X[p] = A[cn++];
		fin(0,0,n,v,0);
		return;
	}
	if(X.size() < x){
		X.push_back(UNDEF);
		Y.push_back(UNDEF);
		FLG.push_back(0);
		X.back() = ++cnt;
		fin(cnt,x,max(0,am-val),val>>1,0);
		return;
	}
	FLG[x]^=1;
	if(FLG[x]){
		if(Y[x] == UNDEF){
			Y.back() = ++cnt;
			fin(cnt,x,min(am,val),val>>1,1);
		}
		else{
			fin(-Y[x]-1,x,min(am,val),val>>1,1);
		}
		return;
	}
	else{
		fin(-X[x]-1,x,max(0,am-val),val>>1,0);
	}
}
 
void create_circuit(int m, vector<int> _A) {
	_A.push_back(0);
	n = A.size();
	A = _A;
	vector<int> C(m+1,-1);
	h = ceil(log2(n));
	v = (1<<(h-1)); 
	fin(0,0,n,v,0);
	answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'void fin(int, int, int, int, bool)':
doll.cpp:33:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |  if(X.size() < x){
      |     ~~~~~~~~~^~~

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