Submission #4697

#	Time	Username	Problem	Language	Result	Execution time	Memory
4697		cki86201	cmp (balkan11_cmp)	C++98	100 / 100	2212 ms	96084 KiB

cmp

#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;
}

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