Tcs Coding Questions 2021 !!hot!! May 2026

print(first_non_repeating_char("aabbc")) # Output: "c"

def first_non_repeating_char(s): char_count = {} for char in s: if char in char_count: char_count[char] += 1 else: char_count[char] = 1 Tcs Coding Questions 2021

class Node: def __init__(self, data): self.data = data self.next = None Tcs Coding Questions 2021

print(find_middle_element(head)) # Output: 3 Tcs Coding Questions 2021