Cod sursa(job #3253916)
Utilizator | Data | 5 noiembrie 2024 12:14:33 | |
---|---|---|---|
Problema | Cautare binara | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.74 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int n,i,m,c,x,a[100005];
int main()
{
fin>>n;
for(i=1;i<=n;i++)
{
fin>>a[i];
}
fin>>m;
for(i=1;i<=m;i++)
{
fin>>c>>x;
if(c==0)
{
int r=upper_bound(a+1,a+n+1,x)-a-1;
if(a[r]!=x) cout<<-1<<'\n';
else cout<<r<<'\n';
}
if(c==1)
{
int r=upper_bound(a+1,a+n+1,x)-a-1;
while(a[r]>x) r--;
fout<<r<<'\n';
}
if(c==2)
{
int r=lower_bound(a+1,a+n+1,x)-a-1;
if(a[r]<x) r++;
fout<<r;
}
}
return 0;
}