SecureFish questions

• how to decide whether two persons are connected
• most efficient way to write data into a file
• understanding of hash code
• Proof that Dominating Set is NP-Complete
• determine if a given point is inside the polygon
• counting boolean parenthesizations implementation
• find an element in a sorted matrix [duplicate]
• how can you measure the time spent in a context switch under java platform
• Find the first element in a sorted array that is greater than the target

SecureFish answers