tema 06.03.2018

#include <iostream>

using namespace std;

int main()
{
    int pb;
    cout << "Introdu nr problemei: "; cin >> pb;
    switch (pb)
    {
        case 1:
        {
            int n, v[10000], s = 0;;
            cout << "cate elemente contine vectorul??"; cin >> n;
            for (int i = 0; i < n; i++)
            {
                cin >> v[i];
                s += v[i];
            }
            float ma = s * 1.0 / n;
            int k = 0;
            for (int i = 0; i < n; i++)
            {
                if (v[i] > ma)
                    k++;
            }
            cout << k << " elemente au val mai mare decat media aritmetica" << endl;
            break;
        }
        case 2:
        {
            int n, v[1000];
            cout << "Cate elemente contine vectorul??"; cin >> n;
            for (int i = 0; i < n; i++)
                cin >> v[i];
            int k = 0;
            for (int i = 2; i < n - 1; i++)
            {
                if (v[i] = v[i - 1] + v[i + 1])
                    k++;
            }
            if (k)
                cout << k << " elemente au valoarea egala cu suma elementelor vecine" << endl;
            else
                cout << "Niciunul" << endl;
            break;
        }
        case 3:
        {
            int n, v[1000], par = 1, s=0;
            cout << "Cate elemente contine vectorul??"; cin >> n;
            for (int i = 0, par=1; i < n; i++, par++)
            {
                cin >> v[i];
                if (par%2==0)
                {
                    if (v[i] % 10 != 0)
                        s += v[i];
                }
            }
            cout << "Suma e " << s << endl;
            break;
        }
        case 4:
        {
            int n1, n2, v1[1000], v2[1000], s=0;
            cout << "Cate elemente contine vectorul 1??"; cin >> n1;
            cout << "Introdu elem primului vector:" << endl;
            for (int i = 0; i < n1; i++)
                cin >> v1[i];
            cout << "Cate elemente contine vectorul 2??"; cin >> n2;
            cout << "Introdu elem celui de-al doilea vector:" << endl;
            for (int j = 0; j < n2; j++)
                cin >> v2[j];
            for (int i = 0; i < n1; i++)
            {
                int ok = 1;
                for (int j = 0; j < n2 && ok; j++)
                {
                    if (v1[i] <= v2[j])
                        ok = 0;
                }
                if (ok == 1)
                    s += v1[i];
            }
            cout << "Suma este: " << s << endl;
            break;
        }
        case 5:
        {
            int n, x, y, v[1000];
            cout << "n="; cin >> n;
            cout << "x="; cin >> x;
            cout << "y="; cin >> y;
            int p = 1, i = 0;
            do
            {
                v[i] = p;
                if (p % 2)
                {
                    i++;
                    v[i] = p;
                }
                i++;
                p++;

            } while (i < n);
            cout << "---------------------------"<<endl;
            int k = 0;
            for (int i = 0; i < n; i++)
            {
                if (v[i] > x && v[i] < y)
                {
                    k++;
                    cout << v[i] << " ";
                }
            }
            cout << endl;
            cout << "--------------------------"<<endl;
            cout << k << endl;
            break;
        }
        default:cout << "BUBA"<<endl;
    }
    system("pause");
    return 0;
}