Miscellaneous On Data Structures - Study Mode

[#291] What is the general formula for finding the magnitude of the cross product of two vectors a and b with angle θ between them?
Correct Answer

(C) |a|.|b| sin(θ)

[#292] What is the best case time complexity of quickselect?
Correct Answer

(C) O(n)

[#293] Hill cipher is an example of . . . . . . . .
Correct Answer

(B) substitution cipher

[#294] What is the running time of naive matrix multiplication algorithm?
Correct Answer

(D) O(n 3 )

[#295] Encryption in running key cipher is done using . . . . . . . .
Correct Answer

(C) tabula recta