求所有数的和1 2 3 ..98 99 100 2 3 4 ..99 100 101 3 4 5..100 101 102.100 101 102..197 198 199
人气:321 ℃ 时间:2019-10-26 09:24:37
解答
(1+199)*100
=200*100
=20000
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