Submission #300855

#	Time	Username	Problem	Language	Result	Execution time	Memory
300855		TMJN	Mechanical Doll (IOI18_doll)	C++17	0 / 100	5 ms	3404 KiB

doll

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

vector<int>X,Y,K;
int c;

int dfs(int num,int dep){
	if(K.size()-1<num+(1<<dep)){
		return K[num];
	}
	else{
		int t=c;
		c++;
		X[t]=dfs(num,dep+1);
		Y[t]=dfs(num+(1<<dep),dep+1);
		return -t-1;
	}
}

void create_circuit(int M,vector<int>A) {
	X=Y=vector<int>(400000,0xE869120);
	K=A;
	c=0;
	for(int i=0;;i++){
		if((1<<i)>K.size()){
			while((1<<i)>K.size()){
				K.push_back(-c-1);
				c++;
			}
			K.back()=0;
			c--;
			break;
		}
	}
	int cc=c;
	int tt=dfs(0,0);
	for(int i=0;i<cc;i++){
		X[i]=-i-1;
		Y[i]=tt;
	}
	vector<int>C(M+1,tt);
	while(!X.empty()&&X.back()==0xE869120){
		X.pop_back();
		Y.pop_back();
	}
	answer(C,X,Y);
}

Compilation message (stderr)

doll.cpp: In function 'int dfs(int, int)':
doll.cpp:9:15: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
    9 |  if(K.size()-1<num+(1<<dep)){
      |     ~~~~~~~~~~^~~~~~~~~~~~~
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:26:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |   if((1<<i)>K.size()){
      |      ~~~~~~^~~~~~~~~
doll.cpp:27:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |    while((1<<i)>K.size()){
      |          ~~~~~~^~~~~~~~~

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