Missing Number
Explore how to identify the missing number in an array containing distinct numbers within a specified range. This lesson helps you apply the cyclic sort pattern effectively, enhancing your problem-solving skills for coding interviews and preparing you to handle similar sorting challenges confidently.
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Statement
Given an array, nums, containing distinct numbers in the range , return the only number in the range that is missing from the array.
Constraints:
-
nums.length -
nums[i] - There are no duplicates in the array.
Examples
Understand the problem
Let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:
Missing Number
What would be the output if the following array is given as input?
[0, 2, 4, 6, 7, 8, 3, 9, 5, 10]
11
2
1
3
Figure it out!
We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.
Try it yourself
Implement your solution in the following coding playground. The supporting code template provided in Traversal.cpp is meant to assist in developing your solution to the problem.
#include <iostream>#include <vector>#include <string>int FindMissingNumber(vector<int> nums){// Your code will replace this placeholder return statementreturn -1;}