Submission #1129

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1129	2013-06-26 08:17:29	gs12117	Watching (JOI13_watching)	C++98	100 / 100	105 ms	16692 KiB

watching

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#include<stdio.h>
int n,p,q;
int a[2010];
int sc[2010];
int lc[2010];
int dp[2010][2010];
int f(long long int x){
  if(x<1)return 0;
  int i,j;
  j=0;
  for(i=0;i<n;i++){
    while(j<n&&a[j]-a[i]<x)j++;
    sc[i]=j;
  }
  sc[n]=n;
  j=0;
  for(i=0;i<n;i++){
    while(j<n&&a[j]-a[i]<x*2)j++;
    lc[i]=j;
  }
  lc[n]=n;
  for(i=0;i<=p;i++){
    for(j=0;j<=q;j++){
      dp[i][j]=-1;
    }
  }
  dp[0][0]=0;
  for(i=0;i<=p;i++){
    for(j=0;j<=q;j++){
      if(dp[i+1][j]<sc[dp[i][j]]){
 
 
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• Subtask 1: 50 / 50
• Subtask 2: 50 / 50