Cod sursa(job #3204660)
| Utilizator | Data | 17 februarie 2024 11:21:57 | |
|---|---|---|---|
| Problema | Cautare binara | Scor | 0 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 1.32 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
long long int n, m, x, v[200005], st, dr, mi, c, r;
int main()
{
fin >> n;
for(int i = 1; i <= n; i++){
fin >> v[i];
}
fin >> m;
for(int i = 1; i <= m; i++){
fin >> c >> x;
st = 1;
dr = n;
r = 0;
if(c == 0){
while(dr >= st){
mi = (st + dr) / 2;
if(v[mi] == x){
r = mi;
st = mi + 1;
}else if(x > v[mi]){
st = mi + 1;
}else{
dr = mi - 1;
}
}
}else if(c == 1){
while(dr >= st){
mi = (st + dr) / 2;
if(v[mi] <= x){
r = mi;
st = mi + 1;
}else{
dr = mi - 1;
}
}
}else{
while(dr >= st){
mi = (st + dr) / 2;
if(v[mi] >= x){
r = mi;
dr = mi - 1;
}else{
st = mi + 1;
}
}
}
fout << r << '\n';
}
return 0;
}
