Cod sursa(job #3360539)

Utilizator MirceaRegeleCeapaMircea Gheorghe MirceaRegeleCeapa Data 14 iulie 2026 15:12:03
Problema Cautare binara Scor 20
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.9 kb
#include <fstream>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
long long v[100001];
int main()
{
   long long n,i,st,dr,mij,q,tipq,x;
   fin>>n;
   for(i=1;i<=n;i++)
   fin>>v[i];
   fin>>q;
   while(q--){
       fin>>tipq>>x;
           st=1;
           dr=n;
           while(dr-st>1){
               mij=st+(dr-st)/2;
               if(v[mij]<=x)
               st=mij;
               else
               dr=mij;
           }
           if(tipq==0){
           if(v[st]==x)
           fout<<st<<'\n';
           else
           fout<<-1<<'\n';
           }
       else if(tipq==1){
           fout<<st<<'\n';
       }
       else if(tipq==2){
            st=1;
           dr=n;
           while(dr-st>1){
               mij=st+(dr-st)/2;
               if(v[mij]<x)
               st=mij;
               else
               dr=mij;
           }
           fout<<dr<<'\n';
       }
   }
}