Given a number N, we have to find the minimum number of palindromes required to express N as a sum of them.
Input: N = 11
11 is itself a palindrome.
Input: N = 65
65 can be expressed as a sum of three palindromes (55, 9, 1).
We can use Dynamic Programming to solve this problem. The idea is to first generate all the palindromes up to N in a sorted fashion, and then we can treat this problem as a variation of the subset sum problem, where we have to find the size of the smallest subset such that its sum is N.
Below is the implementation of above approach:
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- Minimum number of palindromes required to express N as a sum | Set 2
- Minimum number of distinct powers of 2 required to express a given binary number
- Program to print all palindromes in a given range
- Count maximum-length palindromes in a String
- Count special palindromes in a String
- Check if suffix and prefix of a string are palindromes
- Count of ways to split given string into two non-empty palindromes
- Count of minimum reductions required to get the required sum K
- Minimum numbers needed to express every integer below N as a sum
- Express a number as sum of consecutive numbers
- Count ways to express a number as sum of consecutive numbers
- Express an odd number as sum of prime numbers
- Count ways to express even number ‘n’ as sum of even integers
- Count ways to express a number as sum of exactly two numbers
- Minimum number of single digit primes required whose sum is equal to N
- Minimum number of operations required to sum to binary string S
- Minimum count of numbers required ending with 7 to sum as a given number
- Minimum number of primes required such that their sum is equal to N
- Minimum number operations required to convert n to m | Set-2
- Minimum number of given powers of 2 required to represent a number
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Improved By : mohit kumar 29