Tcs Coding Questions 2021 -

Given a string, find the first non-repeating character in it.

while fast and fast.next: slow = slow.next fast = fast.next.next Tcs Coding Questions 2021

for char in s: if char_count[char] == 1: return char Given a string, find the first non-repeating character in it

return max_sum

Given a string, check if it's a palindrome or not. Given a string

return slow.data

print(count_pairs_with_sum([1, 2, 3, 4, 5], 7)) # Output: 2