Online Judge - 10071 - Back to High School Physics
Online Judge - 10071 - Back to High School Physics
來源代碼：UVa
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A particle has initial velocity and acceleration. If its velocity after certain time is v then what will its displacement be in twice of that time?
輸入說明
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)
輸出說明
For each line of input print a single integer in one line denoting the displacement in double of that time
輸入輸出範例
範例 1
範例輸入
0 0 5 12
範例輸出
0 120
範例 2
範例輸入
10 5 -3 4
範例輸出
100 -24
範例 3
範例輸入
-100 0 -100 200 100 200
範例輸出
0 -40000 40000
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