Program to perform given operation with each element of a list and given value in Python

Suppose we have a list of numbers called nums, we also have another string op representing operator like "+", "-", "/", or "*", and another value val is also given, we have to perform the operation on every number in nums with val and return the result.

So, if the input is like [5,3,8], then the output will be [15, 9, 24]

To solve this, we will follow these steps −

• res:= a new list
• for each i in nums, do
  • if op is same as '+', then
    • insert i+val at the end of res
  • otherwise when op is same as '-', then
    • insert i-val at the end of res
  • otherwise when op is same as '*', then
    • insert i*val at the end of res
  • otherwise when val is non-zero, then
    • insert quotient of i/val at the end of res
• return res

Let us see the following implementation to get better understanding −

Example

 Live Demo

class Solution:
   def solve(self, nums, op, val):
      res=[]
      for i in nums:
         if op=='+':
            res.append(i+val)
         elif op=='-':
            res.append(i-val)
         elif op=='*':
            res.append(i*val)
         elif val:
            res.append(i//val)
      return res
ob = Solution()
nums = [5,3,8]
print(ob.solve(nums, '*', 3))

Input

[5,3,8]

Output

[15, 9, 24]

Arnab Chakraborty

Updated on: 06-Oct-2020

251 Views

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