InterviewBit Problems   First Missing Integer : Solved

About the First Missing Integer : Solved category (1)
CPP Solution With O(n) Time Complexity and O(1) Space Complexity (2)
Properly explained O(n) Solution with O(1) space in c++ (3)
Easy solution C++ explained (2)
How using a Set or Dictionary is O(1) space? (1)
Easiest and shortest solution (1)
O(n) time & O(1) space (C++) (2)
Python solution O(n) time and 0(1) space complexity (Hint: Use set or dictionary) (2)
O(1) Space O(n) time (2)
Why am i getting runtime error (1)
O(1) space and o(n) solution by rearranging array elements in cpp (1)
V.v.simplest solution c++ o(1) space (4)
Effective Java Solution in O(n) (2)
Used Approach of rearranging array based on the index (2)
Simple Java Based Solution With Collections (1)
Easy C++ concise solution (1)
C++ solution O(1) extra space (1)
C++ Solution, other solutions seemed difficult, so posting this (2)
Simple O(n) solution in Cpp (4)
LOL so easy for 300 (2)
Cpp solution - Accepted (2)
Wrong Test Case 1 (1)
Python 3 Solution , O(n) time (1)
Simple Solution without extra space and pretty O(n) (2)
Simple O(n) time and O(1) space solutuion JAVA (1)
Easy solution O(n) time and O(1) space complexity (3)
Easy C++ code using Frequency Array (2)
Simple c++ accepted solution O(n) (2)
Compiler gives wrong answer to my code though it looks correct to me (1)
Grpc: the connection is unavailable (2)