Cod sursa(job #2371849)

Utilizator Vlad3108Tir Vlad Ioan Vlad3108 Data 6 martie 2019 19:54:40
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.8 kb
#include <bits/stdc++.h>
using namespace std;
#define LMAX 100005
int v[LMAX];
int main(){
    freopen("cautbin.in","r",stdin);
    freopen("cautbin.out","w",stdout);
    int n;
    scanf("%d",&n);
    for(int i=1;i<=n;++i)
        scanf("%d",&v[i]);
    int q;
    scanf("%d",&q);
    while(q--){
        int tip,val;
        scanf("%d %d",&tip,&val);
        if(tip==0){
            int poz=upper_bound(v+1,v+n+1,val)-v-1;
            if(poz!=0&&v[poz]==val)
                printf("%d\n",poz);
            else printf("-1\n");
        }
        else if(tip==1){
            int poz=upper_bound(v+1,v+n+1,val)-v-1;
            printf("%d\n",poz);
        }
        else{
            int poz=lower_bound(v+1,v+n+1,val)-v;
            printf("%d\n",poz);
        }
    }
    return 0;
}