제출 #758950

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
758950		alexander707070	자동 인형 (IOI18_doll)	C++14	0 / 100	1 ms	212 KiB

doll

#include<bits/stdc++.h>
#include "doll.h"
#define MAXN 200007
using namespace std;
 
int m,power,n;
int a[MAXN],s;
vector< pair<int,int> > edges;
vector<int> from,to,c;

int rev(int x){
    int res=0;
    for(int i=1;i<power;i*=2){
        res*=2; res+=x%2; x/=2;
    }
    return res;
}

void build(int v,int l,int r,int num){
    if(l+1==r){
        num*=2;

        if(rev(num)<n)edges.push_back({v,a[rev(num)]});
        else if(rev(num)==power-1)edges.push_back({v,0});
        else edges.push_back({v,-1});

        num++;
        if(rev(num)<n)edges.push_back({v,a[rev(num)]});
        else if(rev(num)==power-1)edges.push_back({v,0});
        else edges.push_back({v,-1});
    }else{
        int tt=(l+r)/2;
        build(2*v,l,tt,2*num);
        build(2*v+1,tt+1,r,2*num+1);

        edges.push_back({v,-2*v});
        edges.push_back({v,-2*v-1});
    }
}

void create_circuit(int M, vector<int> A){
    m=M; n=int(A.size());

    for(int i=0;i<n;i++){
        a[i]=A[i];
    }
    
    power=1;
    while(power<n+1)power*=2;
    build(1,0,power-1,0);

    sort(edges.begin(),edges.end());

    for(int i=0;i<=m;i++)c.push_back(-1);
    for(int i=0;i<edges.size();i+=2){
        from.push_back(edges[i].second);
        to.push_back(edges[i+1].second);
    }


    answer(c,from,to);
}
/*
int main(){
 
}
*/

컴파일 시 표준 에러 (stderr) 메시지

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:55:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i=0;i<edges.size();i+=2){
      |                 ~^~~~~~~~~~~~~

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