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Commit e76b651

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Solve #274
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‎src/lib.rs

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@@ -211,3 +211,5 @@ mod n0260_single_number_iii;
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mod n0263_ugly_number;
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mod n0264_ugly_number_ii;
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mod n0268_missing_number;
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mod n0273_integer_to_english_words;
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mod n0274_h_index;

‎src/n0273_integer_to_english_words.rs

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/**
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* [273] Integer to English Words
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*
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* Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 2^31 - 1.
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*
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* Example 1:
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*
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*
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* Input: 123
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* Output: "One Hundred Twenty Three"
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*
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*
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* Example 2:
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*
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*
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* Input: 12345
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* Output: "Twelve Thousand Three Hundred Forty Five"
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*
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* Example 3:
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*
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*
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* Input: 1234567
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* Output: "One Million Two Hundred Thirty Four Thousand Five Hundred Sixty Seven"
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*
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*
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* Example 4:
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*
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*
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* Input: 1234567891
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* Output: "One Billion Two Hundred Thirty Four Million Five Hundred Sixty Seven Thousand Eight Hundred Ninety One"
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*
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*
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*/
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pub struct Solution {}
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// submission codes start here
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// static digits: Vec<&str> = vec!["One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"];
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// static xteens: Vec<&str> = vec!["Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventenn", "Eighteen", "Nineteen"];
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// static xtys: Vec<&str> = vec!["Twenty", "Thirty", "Fourty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"];
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// static hunderd: &str = "Hunderd";
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// static thousands: Vec<&str> = vec!["Thousand", "Million", "Billion"];
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impl Solution {
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pub fn number_to_words(num: i32) -> String {
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"".to_owned()
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}
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}
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// submission codes end
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_273() {}
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}

‎src/n0274_h_index.rs

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/**
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* [274] H-Index
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*
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* 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.
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*
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* According to the <a href="https://en.wikipedia.org/wiki/H-index" target="_blank">definition of h-index on Wikipedia</a>: "A scientist has index h if h of his/her N papers have at least h citations each, and the other N - h papers have no more than h citations each."
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*
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* Example:
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*
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*
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* Input: citations = [3,0,6,1,5]
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* Output: 3
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* Explanation: [3,0,6,1,5] means the researcher has 5 papers in total and each of them had
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* received 3, 0, 6, 1, 5 citations respectively.
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* Since the researcher has 3 papers with at least 3 citations each and the remaining
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* two with no more than 3 citations each, her h-index is 3.
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*
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* Note: If there are several possible values for h, the maximum one is taken as the h-index.
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*
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*/
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pub struct Solution {}
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// submission codes start here
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impl Solution {
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pub fn h_index(mut citations: Vec<i32>) -> i32 {
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citations.sort_unstable();
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let mut hidx = 0;
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for &v in citations.iter().rev() {
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if v >= hidx + 1 {
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hidx += 1;
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} else {
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break;
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}
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}
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hidx
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}
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}
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// submission codes end
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_274() {
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assert_eq!(Solution::h_index(vec![3,0,6,1,5]), 3);
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}
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}

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