제출 #147623

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
147623		Bodo171	Mechanical Doll (IOI18_doll)	C++14	100 / 100	123 ms	15520 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
const int nmax=800005;
vector<int> C,X,Y,a,act;
int et[nmax],lf[nmax],rg[nmax],w[nmax],rly[nmax];
int p,u,ets,i,lg,reale;
void build(int nod,int l,int r)
{
    if(l==r)
    {
        w[nod]=(act[l]!=(1<<30));
        rly[nod]=act[l];
        return;
    }
    int m=(l+r)/2;
    build(2*nod,l,m);
    build(2*nod+1,m+1,r);
    w[nod]=w[2*nod]+w[2*nod+1];
    if(w[nod]>0)
    {
        ++reale;
        rly[nod]=-reale;
        X.push_back(rly[2*nod]);
        Y.push_back(rly[2*nod+1]);
    }
    else rly[nod]=(1<<30);
}
int rev(int x,int lg)
{
    int ret=0;
    for(int b=0;b<lg;b++)
    {
        if((x&(1<<b)))
            ret|=(1<<(lg-b-1));
    }
    return ret;
}
void create_circuit(int M, std::vector<int> A) {
  int n = A.size();
  A.push_back(0);
  C.resize(M+1);
  for(i=0;i<=M;i++)
    C[i]=-1;
  while((1<<lg)<n+1)
    lg++;
  act.resize((1<<lg),(1<<30));
  int cat=0;
  for(i=0;i<(1<<lg);i++)
    {
        if(rev(i,lg)>=(1<<lg)-n-1)
         act[rev(i,lg)]=A[cat++];
    }
  build(1,0,(1<<lg)-1);
  for(i=0;i<=M;i++)
    C[i]=rly[1];
  for(i=0;i<X.size();i++)
  {
    if(X[i]==(1<<30)) X[i]=rly[1];
    if(Y[i]==(1<<30)) Y[i]=rly[1];
  }
  answer(C, X, Y);
}

컴파일 시 표준 에러 (stderr) 메시지

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:57:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |   for(i=0;i<X.size();i++)
      |           ~^~~~~~~~~

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