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Cod sursa(job #301281)
#include<stdio.h>
int n,a[100000],m,i,s;
int main(){
freopen("cautbin.in","r",stdin);
freopen("cautbin.out","w",stdout);
scanf("%d",&n);
for(i=1;i<=n;i++)scanf("%d",&a[i]);
scanf("%d",&m);
for( i=1;i<=m;i++){int x,y;
scanf("%d %d",&x,&y);
if(x==0){for(s=1;s<n;s<<=1);
for(i=0;s;s>>1)if(i+s<n&&a[i+s]==y)i+=s;
if(i==0)printf("%d\n",i);
else printf("%d\n",i);}
else if(x==1){for(s=1;s<n;s<<=1);
for(i=0;s;s>>1)if(i+s<n&&a[i+s]<=y)i+=s;
printf("%d\n",i);}
else{for(s=1;s<n;s<<=1);
for(i=0;s;s>>1)if(i+s<n&&a[i+s]>=y)i+=s;
printf("%d\n",i);}}
return 0;}