To the Top
File:  root - text - article - 2019 - 11 - witness.txt
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Category: Computing | 1956 Views, 21032 Search Bots | 94 Words

Subscribe to Feed Burner | Browse | Archive
Hi, here's your problem today. This problem was recently asked by Google:

There are n people lined up, and each have a height represented as an integer. A murder has happened right in front of them, and only people who are taller than everyone in front of them are able to see what has happened. How many witnesses are there?

Example:
Input: [3, 6, 3, 4, 1]
Output: 3
Explanation: Only [6, 4, 1] were able to see in front of them.


#
#
# #
####
####
#####
36341 x (murder scene)


Here's your starting point:


def witnesses(heights):
# Fill this in.

print witnesses([3, 6, 3, 4, 1])
# 3
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Cateogry: Computing | 1956 Views, 21032 Search Bots | 94 Words Subscribe to Feed Burner

Related Articles

  1. Two Tricks of Delphi
  2. Invert a Binary Tree
  3. Daily Interview Problem: Group Words that are Anagrams
  4. Daily Interview Problem: Arithmetic Binary Tree
  5. Daily Interview Problem: 3 Sum
  6. Batch Programming in XP
  7. Skip the readings, focus on problems. And use all the hints!
  8. Daily Interview Problem: Jump to the End
  9. Daily Interview Problem: Contiguous Subarray with Maximum Sum
  10. Palindrome Integers

Comments (1)

    1.     - 2021-07-05 09:05:17 AM
 public class Main {
public static void main(String[] args) {
System.out.println("Hello World!");
int[] input = {8, 2, 3, 4, 0};
int n = input.length;
int witness = 0;
int max_so_far = Integer.MIN_VALUE;
for(int i = n-1 ; i >= 0 ; i--){
if(input[i] > max_so_far){
witness++;
max_so_far = input[i];
}
}
System.out.println(witness);
}
}
 


Page Edited: May 11 2024 14:36:49 | RSS Subscription
How to Cook a Perfect Steak? | <meta name="robots" content="index, follow">