Update reverseInteger.cpp

增加负数情况判断
bug fix
Merge branch 'JQT-patch-1'
merge fix
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format output
refine the ouput function name
Merge branch 'Omar002-patch-1'
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Add comments to explain the solutions
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issue #13
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Merge branch 'master' of github.com:haoel/leetcode
同源项目进行一次同步
Merge remote-tracking branch 'remotes/haoel/master'

Conflicts:
	src/reverseInteger/reverseInteger.cpp