Cod sursa(job #2065172)

Utilizator lucia.cstCostache Lucia lucia.cst Data 13 noiembrie 2017 15:25:46
Problema Cautare binara Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 1.16 kb
#include<fstream>
#include<cmath>

using namespace std;

ifstream cin("cautbin.in");
ofstream cout("cautbin.out");

const int MAX=1e5+1;

int n, m, v[MAX], x, tip;

int main(){
    cin>>n;
    for(int i=1; i<=n; i++)
        cin>>v[i];
    cin>>m;
    int pas=1<<16;
    for(int j=1; j<=m; j++){
        cin>>tip>>x;
        int r=0;
        if(tip==0){
            while(pas!=0){
                if(r+pas<=n && v[r+pas]<=x){
                    r+=pas;
                }
                pas /= 2;
            }
            if (r == 0 || v[r] < x) {
                r = -1;
            }
            cout<<r<<'\n';
        }
        if(tip==1){
            r=0;
            pas=1<<16;
            while(pas!=0){
                if(r + pas <= n && v[r+pas] <= x) {
                    r += pas;
                }
                pas /= 2;
            }
            cout<<r<<'\n';
        }
        if(tip==2){
            r=0;
            pas=1<<16;
            while(pas!=0){
                if(r + pas <= n && v[r+pas] < x) {
                    r += pas;
                }
                pas /= 2;
            }
            r++;
            cout<<r<<'\n';
        }
    }
    return 0;
}