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Cod sursa(job #670787)
#include <iostream>
#include <fstream>
using namespace std;
const int N=100001;
int v[N],n;
ifstream in ("cautbin.in");
ofstream out("cautbin.out");
int cautb2(int numar)
{
int i,pas=1<<16;
for(i=0;pas!=0;pas>>=1)
if(i+pas<=n && v[i+pas]<numar)
i+=pas;
if(v[i] < numar) return i;
}
int cautb1(int numar)
{
int i,pas=1<<16;
for(i=0;pas!=0;pas>>=1)
if(i+pas<=n && v[i+pas]<=numar)
i+=pas;
if(v[i] <= numar) return i;
}
int cautb0(int numar)
{
int i,pas=1<<16;
for(i=0;pas!=0;pas>>=1)
if(i+pas<=n && v[i+pas]<=numar)
i+=pas;
if(v[i] == numar) return i;
return -1;
}
int main()
{
in>>n;
for(int i=1;i<=n;i++)
in>>v[i];
int m; in>>m; int x,y;
for(int i=0;i<m;i++)
{
in>>x>>y;
switch(x)
{
case 0: out<<cautb0(y)<<"\n"; break;
case 1: out<<cautb1(y)<<"\n"; break;
case 2: out<<cautb2(y)+1<<"\n"; break;
}
}
return 0;
}