Submission #546391

#	Time	Username	Problem	Language	Result	Execution time	Memory
546391		jamezzz	Mechanical Doll (IOI18_doll)	C++17	37 / 100	160 ms	44608 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> out[500005];

void create_circuit(int M,vector<int> A){
	int N=A.size();
	vector<int> tmp;
	for(int i=0;i<N;++i){
		tmp.push_back(A[i]);
	}
	tmp.push_back(0);
	
	int s=tmp.size();
	for(int i=0;((i+s)&(i+s-1))!=0;++i){
		out[M+1].push_back(-1);
	}
	for(int x:tmp)out[M+1].push_back(x);
	
	vector<int> C(M+1);
	vector<int> X,Y;
	
	int cur=2;
	for(int i=0;i<M+cur;++i){
		if(i<=M)C[i]=-1;
		else{
			vector<int> l,r;
			for(int j=0;j<out[i].size();++j){
				if(j%2==0)l.push_back(out[i][j]);
				else r.push_back(out[i][j]);
			}
			
			bool same=true;
			for(int j=0;j<l.size()-1;++j){
				if(l[j]!=l[j+1]){
					same=false;
					break;
				}
			}
			
			if(same)X.push_back(l[0]);
			else{
				X.push_back(-cur);
				swap(out[M+cur],l);
				++cur;
			}
			
			same=true;
			for(int j=0;j<r.size()-1;++j){
				if(r[j]!=r[j+1]){
					same=false;
					break;
				}
			}
			
			if(same)Y.push_back(r[0]);
			else{
				Y.push_back(-cur);
				swap(out[M+cur],r);
				++cur;
			}
		}
	}
	
	answer(C,X,Y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:29:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |    for(int j=0;j<out[i].size();++j){
      |                ~^~~~~~~~~~~~~~
doll.cpp:35:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |    for(int j=0;j<l.size()-1;++j){
      |                ~^~~~~~~~~~~
doll.cpp:50:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |    for(int j=0;j<r.size()-1;++j){
      |                ~^~~~~~~~~~~

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9 / 18
• Subtask 6: 28 / 56