Timus Problem 1313 Solution

#include<stdio.h>

int main()

{

    int a[155],b[155],nn;

    int n,i,j,count,h,k,m=0;

    scanf("%d\n",&n);

       

        for(i=0;i<n;i++)

{

scanf("%d",&a[i]);

}



        for (i=0;i<n;i++)

        {

            count=0;

            for (j=0;j<n;j++)

            {

                if (a[i]==a[j])

                    count++;

            }

            if (count>=4)

            {

               h=0;

                for(k=0;k<i;k++)

                {

                    if(a[i]!=a[k])

                        h++;

                }

                if (h==i)

                {

                 (b[m++]==a[i]);

                }

                   

            }

        }

    nn=m;

printf("%d",nn);

   

    return 0;

}