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求等差数列的和
Time Limit:1000MS Memory Limit:32768K
Description:
有一些整数组,每三个整数为一组,分别表示等差数列的起始位置、终止位置和公差,求每组数列的和。如果三个整数都为0,表示输入结束。
Sample Input:
5 100 5 1 5 1 1 10 1 0 0 0
Sample Output:
1050 15 55
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