27 remove elements

Author: PTHARRISH

leet code/27.remove_elements.py

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+# 27. Remove Element
+# Given an integer array nums and an integer val, remove all occurrences of val in nums in-place. 
+# The order of the elements may be changed. 
+# Then return the number of elements in nums which are not equal to val.
+
+# Consider the number of elements in nums which are not equal to val be k, to get accepted, 
+# you need to do the following things:
+
+# Change the array nums such that the first k elements of nums contain the elements which are not equal to val. 
+# The remaining elements of nums are not important as well as the size of nums.
+# Return k.
+
+# Example 1:
+# Input: nums = [3,2,2,3], val = 3
+# Output: 2, nums = [2,2,_,_]
+# Explanation: Your function should return k = 2, with the first two elements of nums being 2.
+# It does not matter what you leave beyond the returned k (hence they are underscores).
+
+def removeElement(nums, val):
+    while val in nums:
+        i=nums.index(val)
+        nums.pop(i)
+    return len(nums)
+