[UvaOJ - Getting Started] 10071 - Back to High School Physics

Problem B

Back to High School Physics

Input: standard input

Output: standard output

 

A particle has initial velocity and constant acceleration. Ifits velocity after certain time is v then what will its displacement be in twice ofthat time?

Input

The input will contain two integers in each line. Eachline makes one set of input. These two integers denote the value of v (-100 <= v <= 100) and t(0<=t<= 200) ( t means atthe time the particle gains that velocity) 

 Output

For each line of inputprint a single integer in one line denoting the displacement in double of that time.

 Sample Input

0 0
5 12

Sample Output

0
120

___________________________________________________________________________________

Shahriar Manzoor

程序：

C语言: Codee#26452

01 #include <stdio.h>
02
03 int main()
04 {
05     int v = 0;
06     int t = 0;
07
08     while ( scanf( "%d %d" , & v , & t) != EOF)
09     {
10         printf( "%d \n " , 2 * v * t);
11     }
12
13     return 0;
14 }