Submission #96742

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
96742	2019-02-11 15:59:51	jangwonyoung	Dancing Elephants (IOI11_elephants)	C++14	100 / 100	3613 ms	11140 KiB

elephants

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#include "elephants.h"
#include<iostream>
#include<queue>
using namespace std;
const int bs=400;
int bc;
int x[150000];
int n,l;
vector<int>bl[400];
vector<int>dp[400];
vector<int>en[400];
int z[150000];
int rnd=0;
void yena(int pos){
  dp[pos].resize(bl[pos].size()); dp[pos].shrink_to_fit();
  en[pos].resize(bl[pos].size()); en[pos].shrink_to_fit();
  if(bl[pos].empty()) return;
  int ptr=bl[pos].size();
  for(int i=(int)bl[pos].size()-1; i>=0 ;i--){
    while(ptr!=0 && bl[pos][ptr-1]>l+bl[pos][i]) --ptr;
    if(ptr==bl[pos].size()) dp[pos][i]=1,en[pos][i]=bl[pos][i]+l+1;
    else dp[pos][i]=1+dp[pos][ptr],en[pos][i]=en[pos][ptr];
  }
}
int sakura(){
  int ans=0,cur=0;
  for(int i=0; i<bc ;i++){
    if(bl[i].empty() || bl[i].back()<cur) continue;
    int pos=lower_bound(bl[i].begin(),bl[i].end(),cur)-bl[i].begin();
    ans+=dp[i][pos],cur=en[i][pos];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

elephants.cpp: In function 'void yena(int)':
elephants.cpp:21:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(ptr==bl[pos].size()) dp[pos][i]=1,en[pos][i]=bl[pos][i]+l+1;
      ~~~^~~~~~~~~~~~~~~~
elephants.cpp: In function 'int update(int, int)':
elephants.cpp:70:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1; i<bl[pos].size() ;i++) if(bl[pos][i]<bl[pos][i-1]) swap(bl[pos][i-1],bl[pos][i]);
               ~^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 16 / 16
• Subtask 3: 24 / 24
• Subtask 4: 47 / 47
• Subtask 5: 3 / 3