1000. a + b problem

Find the value of a + b.

Input. Each line contains two integers a and b (|a|, |b| ≤ 30000).

Output. For each test case print the sum a + b in a separate line.

Sample input	Sample output
1 1 1 2	2 3

SOLUTION

elementary

Algorithm analysis

In this problem you must find the sum of two integers.

Algorithm realization

Compute the sum of two numbers until we reach the end of file.

while(scanf("%d %d",&a,&b) == 2)

printf("%d\n",a + b);

Algorithm realization – pointers

#include <stdio.h>

int *a, *b;

int main(void)

{

a = new (int);

b = new (int);

while(scanf("%d %d",a,b) == 2)

printf("%d\n",*a + *b);

delete a;

delete b;

return 0;

}

Java realization

import java.util.*;

public class Main

{

public static void main(String[] args)

{

Scanner con = new Scanner(System.in);

while(con.hasNext())

{

int a = con.nextInt();

int b = con.nextInt();

System.out.println(a + b);

}

con.close();

}

}

Python realization

import sys

for s in sys.stdin:

a, b = map(int,s.split())

print(a+b)