Is my algo wrong?
This is my solution


# include <stdio.h>
main()
{
    int i=0,m,g,k=0;
    const int n=100000;
//    const char AZ[26]={'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
    const char az[26]={'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
    while(i!=n)
    {
        for(m=k;m+k<26&&i<n;m++)
            for(g=0;g<26&&i<n;g++)
            {
                printf("%c",az[m%26]);
                i++;
                printf("%c",az[g]);
                i++;
            }
        k++;
        k%=26;
    }
    return 0;
}