UVA 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. If its velocity after certain time is v then what will its displacement be in twice of that time

Input

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

Output

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

Sample Input

Sample Output

Shahriar Manzoor

#include 
  
   
using namespace std;
int main()
{
    long long a,b;
    while(cin>>a>>b)
    {
        cout<<2*a*b<
   
    
 
    
 
    
 
    
结果：
 
    
 
    
 
     
 
      
 
       
 #
 
       
 
 
       
 Problem
 
       
 Verdict
 
       
 Language
 
       
 Run Time
 
       
 Submission Date
 
      
 
      
 
       
 13376488
 
       
 10071
 
       
 Back to High School Physics
 
       
 Accepted
 
       
 C++
 
       
 0.169
 
       
 2014-03-23 15:06:37