Jocuri Noi

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

int sumacifre(char sir[])
{
    int sm=0;
    for(unsigned int i=0;i<strlen(sir);++i)
        sm=sm+(int)(sir[i]-'0');
    return sm;
}

int main()
{
    int n,z;
    ifstream f("jocuri_noi.in");
    f>>n>>z;
    f.get();
	char x[22];
    int s,nr=0;
    while(n--)
    {
        f>>x;
        s=sumacifre(x);
        if(s%10==z)
            ++nr;
    }
    f.close();
    ofstream g("jocuri_noi.out");
    g<<nr;
    g.close();
    return 0;
}