NOJ Physics

Physics

时间限制(普通/Java) : 1000 MS/ 3000 MS          运行内存限制 : 65536 KByte
总提交 : 49            测试通过 : 41 

题目描述

A particle has initial constant velocity. For a particle with initial velocity v find the displacement of that

particle if the time t is doubled.

输入

The input will contain two integers in each line. Each line makes one set of input. These two integers

denote the value of v (-10000 <= v <= 10000) and t(0<=t<= 500) ( t means at the time the particle gains

that velocity)

输出

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

样例输入

0 0
5 12

样例输出

0
120

提示

undefined

分析：看懂题目意思就够了。

<span style="font-size:12px;">#include<iostream>
#include<cstdlib>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int v,t,dis;
int main()
{
    while(~scanf("%d%d",&v,&t))
    {
        dis=v*t*2;
        printf("%d
",dis);
    }
}</span>

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