lunes, 19 de junio de 2017

python and java hackerrank


Welcome to HackerRank! The purpose of this challenge is to familiarize you with reading input from stdin (the standard input stream) and writing output to stdout (the standard output stream) using our environment.
Review the code provided in the editor below, then complete the solveMeFirst function so that it returns the sum of two integers read from stdin. Take some time to understand this code so you're prepared to write it yourself in future challenges.
Select a language below, and start coding!
Input Format
Code that reads input from stdin is provided for you in the editor. There are  lines of input, and each line contains a single integer.
Output Format
Code that prints the sum calculated and returned by solveMeFirst is provided for you in the editor.

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    static int solveMeFirst(int a, int b) {
         // Hint: Type return a+b; below
return a+b;
   }

 
 public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a;
        a = in.nextInt();
        int b;
        b = in.nextInt();
        int sum;
        sum = solveMeFirst(a, b);
        System.out.println(sum);
   }
}



PYTHON

def solveMeFirst(a,b):
   # Hint: Type return a+b below
  return a+b

num1 = int(input())
num2 = int(input())
res = solveMeFirst(num1,num2)
print(res)


********************************************

Given an array of  integers, can you find the sum of its elements?
Input Format
The first line contains an integer, , denoting the size of the array. 
The second line contains  space-separated integers representing the array's elements.
Output Format
Print the sum of the array's elements as a single integer.
Sample Input
6
1 2 3 4 10 11
Sample Output
31
Explanation
We print the sum of the array's elements, which is: .

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class SimpleArraySum {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int number = sc.nextInt();
        int sum=0;
        for(int i = 0;i<number;i++){
            sum+=sc.nextInt();
        }
        System.out.println(sum);
    }
}

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