Cod sursa(job #3323914)
| Utilizator | Data | 20 noiembrie 2025 13:01:39 | |
|---|---|---|---|
| Problema | Cautare binara | Scor | 0 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 1.09 kb |
#include <bits/stdc++.h>
using namespace std;
#define N 100000
int v[N+1];
int main()
{
ifstream cin ("cautbin.in");
ofstream cout ("cautbin.out");
int n, i, m, cer, a, st, dr, mij;
cin>>n;
for(i=0; i<n; i++){
cin>>v[i];
}
cin>>m;
for(i=0; i<m; i++){
cin>>cer>>a;
if(cer==2){
st=-1;
dr=n-1;
while(dr-st>1){
mij=(st+dr)/2;
if(v[mij]<a)
st=mij;
else
dr=mij;
}
cout<<dr+1<<'/n';
}
else{
st=0;
dr=n;
while(dr-st>1){
mij=(st+dr)/2;
if(v[mij]>a)
dr=mij;
else
st=mij;
}
if(cer==1)
cout<<st+1<<'/n';
else{
if(a==v[st])
cout<<st+1<<'/n';
else
cout<<-1<<'/n';
}
}
}
return 0;
}
