H-Index | Leetcode Top Interview 150

Here we will discuss the most important data structures and algorithms questions which are usually asked in the top rated product based companies.
About me - My name is Anurag Gupta. I have done my B.Tech. from IIT Roorkee. I have done software engineer internship at Amazon and I have 3 years of work experience as a Senior Software Engineer.
Problem Link - leetcode.com/p...
Problem Description - Given an array of integers citations where citations[i] is the number of citations a researcher received for their ith paper, return the researcher's h-index.
According to the definition of h-index on Wikipedia: The h-index is defined as the maximum value of h such that the given researcher has published at least h papers that have each been cited at least h times.

[@CodingWithAnurag-1086]

Code solution - class Solution {
public:
int hIndex(vector& citations) {
int n = citations.size();
int low = 0, high = 1000, ans= -1, mid, count;
while(low= mid) {
ans = mid;
low = mid + 1;
} else {
high = mid - 1;
}
}
return ans;
}
};