Puteri6

#include <fstream>
#include <cmath>
using namespace std;

int main()
{
    int n,a,frecv[10]={0},s=0;
    ifstream f("puteri6.in");
    f>>n;
    while(f>>a)
        ++frecv[(int)(log10(a))];
    f.close();
    int p;
    for(int i=0;i<=9;++i)
	    if(frecv[i]&&s<n)
            s+=frecv[i],p=i;
    ofstream g("puteri6.out");
    if(s<n)
	    g<<"Nu exista";
    else
	    g<<pow(10,p);
    g.close();
    return 0;
}