Give 100 points How many 58-digit numbers are there where the sum of the digits is 31, and each digit has a adjacent number different parity?

Given two integers ‘n’ and ‘sum’, find count of all n digit numbers with sum of digits as ‘sum’. Leading 0’s are not counted as digits.

1 <= n <= 100 and

1 <= sum <= 500

Example:

Input: n = 2, sum = 2

Output: 2

Explanation: Numbers are 11 and 20

Input: n = 2, sum = 5

Output: 5

Explanation: Numbers are 14, 23, 32, 41 and 50

Input: n = 3, sum = 6

Output: 21

the answer is 2/54

step-by-step explanation:

a.) list the factors of 40.

1/2/4/5/8/10/20/40

b.) list the factors of 40 that represent the number of cans that could be on each shelf.

5

c.) how many different arrangements of cans are possible?

just one because if you put more on one shelf you will go way over 40 and the cabinet will probably break.

d.) what are the possible arrangements of the cans?

put 5 cans on each self to reach 40 cans in total.

e.) which arrangement uses all the shelves?

5 because you can put 5 cans on each shelf, and since there are 8 shelfs you are equally going to get 40 cans.