Submission #4697

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
4697	2013-12-19 02:53:11	cki86201	cmp (balkan11_cmp)	C++98	100 / 100	2212 ms	96084 KiB

cmp

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#include"cmp.h"
void remember(int n){
  n+=1365;
  while(n){
    bit_set(n);
    n=(n-1)/4;
  }
}
int compare(int b) {
  int t[7],i;
  b+=1365;
  for(i=1;i<=6;i++)t[i]=b,b=(b-1)/4;
  int st=1,en=6,mi,lca=0;
  while(st<=en){
    mi=(st+en)>>1;
    if(!bit_get(t[mi]))st=mi+1,lca=mi;
    else en=mi-1;
  }
  if(lca==0)return 0;
  int a=(t[lca]-1)%4;
  if(a==3)return 1;
  if(a==2)return bit_get(t[lca]+1)?-1:1;
  if(a==1)return bit_get(t[lca]-1)?1:-1;
  if(a==0)return -1;
}
 
 
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Compilation message (stderr)

cmp.cpp: In function 'int compare(int)':
cmp.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 100 / 100