Given an array of citations (each citation is a non-negative integer) of a researcher, write a function to compute the researcher's h-index.
According to the definition of h-index on Wikipedia: "A scientist has index h if h of his/her N papers have at leasth citations each, and the other N − h papers have no more thanh citations each."
Input: citations = [3,0,6,1,5] Output: 3 Explanation: [3,0,6,1,5] means the researcher has 5 papers in total and each of them had received 3, 0, 6, 1, 5 citations respectively. Since the researcher has 3 papers with at least 3 citations each and the remaining two with no more than 3 citations each, her h-index is 3.
If there are several possible values for h, the maximum one is taken as the h-index.
implSolution{pubfnh_index(citations:Vec<i32>) -> i32{letmut citations = citations; citations.sort_unstable_by(|a, b| b.cmp(a));letmut h = 0;for i in0..citations.len(){ h = h.max(citations[i].min(i asi32 + 1));} h }}implSolution{pubfnh_index(citations:Vec<i32>) -> i32{letmut counter = vec![0; citations.len() + 1];for&c in&citations { counter[(c asusize).min(citations.len())] += 1;}letmut s = 0;letmut i = counter.len() - 1;loop{ s += counter[i];if s >= i {return i asi32;} i -= 1;}}}