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visits member for 3 years, 8 months
seen Dec 16 '13 at 16:56

Oct
15
revised Threshold of connectivity in a random graph
deleted 1 characters in body
Feb
13
revised Combination of splitting elements into pairs
deleted 8 characters in body
Apr
28
revised Problem about number of vertices of a graph
added 48 characters in body; added 12 characters in body
Apr
10
revised Permutation/Combination of x,y and z moves
A typo mistake fixed.
Apr
9
revised Permutation/Combination of x,y and z moves
added 33 characters in body; edited title