Subsequence-Numbers Divisible by 7 solution codechef

Subsequence-Numbers Divisible by 7 solution codechef Kulyash has given you an array AA of size NN. He defines the subsequence-number of a non-empty subsequence SS of array AA as the number formed by the concatenation of all the elements of the subsequence SS. Find the count of non-empty subsequences of AA having their subsequence-numbers divisible by 77. Since the answer can be huge, output it modulo 109+7109+7. Edology is a global Ed-Tech brand that provides industry powered … Read more