腰二散灵，北美杯具未上期，放狗

sdcar2010

114: the integer N can be expressed in this way: the sum of numbers made by a consecutive list 1 2 3 4 5 (note the word consecutive, it means the order should be 12345, not 13245 or 23415 etc), and you should put 2 plus sign between them, for example, 12+34+5 = 51 (warn: the N does not need to be a number consisted of 12345, in the example, 1 appear twice!), is N even?
1) N is 3 digit  2) one of the two plus sign is between 1 and 2
Doggy's dad choose A....and it should be A....

1) 1+2+345
2) 1+23+45
3) 1+234+5
4) 12+3+45
5) 12+34+5
6) 123+4+5

The above are all the possibilities for this specific question.

yayafl

北美。。。。。。。。。。

faye宝

密码是啥啊。打不开