Reference: Your text to link here...
As he says, the number of lucky numbers in range [1;10^9] is 1022. But when I make C[1050][1050],the answer returned is runtime error. If I make C[1200][1200],it can be accept.Can someone tell me why?
My submission:1201668
k <= 10^5, C[lsize][k-i], k = 99999, i = 1 -> RE
Thanks.I have passed it.