Write a function that takes a string as input and reverse the same.
Example:
Given s = "hello", return "olleh".
Approach: The idea is to swap the last and the first characters till the middle is reached.
1 2 3 4 5 6 7 8 9 10 11 | string reverseString(string &s) { int low = 0, high = s.length() - 1; while(low < high){ char t = s[low]; s[low] = s[high]; s[high] = t; low++; high--; } return s; } |
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ReplyDeleteReversing a string is a great way to understand swapping logic in programming. Using rsl helper techniques, you can easily implement this approach to enhance your coding skills and problem solving ability.
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