[AD] 20171026 exercise 2

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請設計一個程式，由使用者輸入平面座標系上三個點，程式會計算這三個點圍成的三角形面積後輸出。
[Exercise] Essay (Open question) - asked in 2017-1 程式設計(一)AD by (30k points)
ID: 28892 - Available when: Unlimited - Due to: Unlimited | 1.2k views

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#include<stdio.h>

int main()

{

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return 0;

}
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