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It requires to log in. Please explain in details problem statements.
it's a 2-sat problem given the inputs like this
3
4[or operation] 3[number of variable]
+1 +3
+2 -1
+2 -3
-1 -2
we have to find if it is satisfiable or not if satisfiable we have to find the possible values of the variables for which it is satisfiable