问题6： (1) trianglecount =0 你能解释这个原 (2) for i=1 to n 理的应用吗？ (3) for j=i+1 to n (4) for k j+1 to n (5) if points i,j,and k are not collinear (6) trianglecount trianglecount 1 Among all iterations of line 5 of the pseudocode,what is the total number of times this line checks three points to see if they are collinear? Principle 1.5 (Bijection Principle) Two sets have the same size if and only if there is a one-to-one function from one set onto the other