Problem:Work out the first ten digits of the
sum of the following one-hundred 50-digit
numbers.3710728753390210279879799822083759024651013574025046376...
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其他好文 时间：
2014-05-07 13:34:38
阅读次数：
299
Problem：The sequence of triangle numbers is
generated by adding the natural numbers. So the 7thtriangle number would be 1 +
2 + 3 + 4 + 5 + 6 + 7 = 28...
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其他好文 时间：
2014-05-07 00:28:01
阅读次数：
365
Problem：In the 2020 grid below, four numbers
along a diagonal line have been marked in red.08 02 22 97 38 15 00 40 00 75 04
05 07 78 52 12 50 77 91 08...
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其他好文 时间：
2014-05-06 14:35:55
阅读次数：
460
