Cod sursa(job #1886711)
Utilizator | Data | 21 februarie 2017 08:54:19 | |
---|---|---|---|
Problema | Cautare binara | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.71 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int n,x[100001],i,t,y,m,w;
int main(){
fin>>n;
for(i=1;i<=n;i++)
fin>>x[i];
sort(x+1,x+n+1);
fin>>m;
for(i=1;i<=m;i++){
fin>>t>>y;
if(t==0){
w=upper_bound(x+1,x+n+1,y)-x-1;
if(w<=n&&w>=1&&x[w]==y)
fout<<w<<'\n';
else
fout<<-1<<'\n';}
else
if(t==1){
w=lower_bound(x+1,x+n+1,y+1)-x-1;
fout<<w<<'\n';
}
else{
w=upper_bound(x+1,x+n+1,y-1)-x;
fout<<w<<'\n';
}
}
fin.close();
fout.close();
return 0;
}