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Comparison between Users


Expression

  






Expression

  






ID Rule
1 You can use any expression consisting of user ids and operators "& | -".
2 Operator & will show the intersection of the solved problems. A & B will show the problems that are solved by both A and B.
3 Operator | will show the union of the solved problems. A | B will show the problems that are solved by A or by B.
4 Operator - will show the set difference. A - B will show the problems that are solved by A but not by B.
5 You can use parenthesis, i.e. "( )".
6 To get all the problems in LightOJ, use id 0.
7 Precedence order (high to low): () & | -.
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