Given three strings S, oldW and newW. Find all occurrences of the word oldW in S and replace them with word newW.
Example 1:
Input:
S = "xxforxx xx for xx"
oldW = "xx"
newW = "Geeks"
Output:
"geeksforgeeks geeks for geeks"
Explanation:
Replacing each "xx" with
"Geeks" in S.
Example 2:
Input:
S = "india is the xx country"
oldW = "xx"
newW = "best"
Output:
"india is the best country"
Explanation:
Replacing each "xx" with
"best" in S.
Your Task:
You dont need to read input or print anything. Complete the function ReplaceAll() which takes S, oldW and newW as input parameters and returns the string S after replacing all oldW with newW.
Expected Time Complexity: O(n2) Expected Auxiliary Space: O(1)
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
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