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Cod sursa(job #273298)
#include <stdio.h>
#define Q 100005
int v[Q],n;
int caut0(int x)
{
int st=1, dr=n,m;
while(st!=dr)
{
m=(st+dr+1)/2;
if(x>=v[m])
st=m;
else
dr=m-1;
}
if(x==v[st])
return st;
return -1;
}
int caut1(int x)
{
int st=1, dr=n,m;
while(st!=dr)
{
m=(st+dr)/2;
if(x<=v[m])
dr=m;
else
st=m+1;
}
if(v[st]>x)
--st;
return st;
}
int caut2(int x)
{
int st=1, dr=n,m;
while(st!=dr)
{
m=(st+dr)/2;
if(x<=v[m])
dr=m;
else
st=m+1;
}
if(v[st]<x)
++st;
return st;
}
int main()
{
freopen("cautbin.in","r",stdin);
freopen("cautbin.out","w",stdout);
int m,i,tip,x;
scanf("%d",&n);
for (i=1; i<=n; i++)
scanf("%d",&v[i]);
scanf("%d",&m);
while(m--)
{
scanf("%d%d",&tip,&x);
if(tip==0)
printf("%d\n",caut0(x));
if(tip==1)
printf("%d\n",caut1(x));
if(tip==2)
printf("%d\n",caut2(x));
}
return 0;
}