Tcs Coding | Questions 2021

def find_middle_element(head): slow = head fast = head

for num in arr: complement = target_sum - num if complement in seen: count += 1 seen.add(num)

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

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

Example: Input - [1, 2, 3, 4, 5], target sum - 7, Output - 2 def find_middle_element(head): slow = head fast = head

for num in arr: current_sum = max(num, current_sum + num) max_sum = max(max_sum, current_sum)

Example: Input - [-2, 1, -3, 4, -1, 2, 1, -5, 4], Output - 6 target sum - 7

return slow.data