Cod sursa(job #1862076)

Utilizator MateiAruxandeiMateiStefan MateiAruxandei Data 29 ianuarie 2017 15:14:30
Problema Cautare binara Scor 40
Compilator cpp Status done
Runda Arhiva educationala Marime 0.87 kb
#include <bits/stdc++.h>

using namespace std;

int v[10005];

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 m;
    scanf("%d", &m);

    for(int i = 1; i <= m; ++i){
        int a, b;
        scanf("%d%d", &a, & b);

        if(a == 0){
            int x = upper_bound(v + 1, v + n + 1, b) - v - 1;
            if(x <= n && x >= 1 && v[x] == b)
                printf("%d\n", x);
            else printf("-1\n");
        }

        if(a == 1){
            int x = lower_bound(v + 1, v + n + 1, b + 1) - v - 1;
            printf("%d\n", x);
        }

        if(a == 2){
            int x = upper_bound(v + 1, v + n + 1, b - 1) - v;
            printf("%d\n", x);
        }
    }
    return 0;
}