def is_majority(arr, n, x): i = binary_search(arr, 0, n-1, x) if i == -1: return False if ((i + n//2) <= (n -1)) and arr[i + n//2] == x: return True else: return False def binary_search(arr, low, high, x): if high >= low: mid = (low + high)//2 if (mid == 0 or x > arr[mid-1]) and (arr[mid] == x): return mid elif x > arr[mid]: return binary_search(arr, (mid + 1), high, x) else: return binary_search(arr, low, (mid -1), x) return -1