NYCT Problem
NYCT Trivia
Python
Linear Algebra
Graph Theory
100
The amount of time a SFE checker collects data at a FCA
What is one hour?
100
The busiest subway station, with 64,531,511 annual riders passing through in 2016
What is Times Square (N/Q/R/W/S/1/2/3/7/ 42 St A/C/E)?
100
This is the output of the following Python code
True = False
while True:
print(True)
break
What is SyntaxError?
(True is a keyword and it’s value cannot be changed)
100
The name of an nxn matrix with 1 entries on the diagonal and 0 entries elsewhere as shown
What is the identity matrix?
100
The number of edges in a K_13
What is 13 choose 2 = 78?
200
The number of hours a checker needs to work in order to get a paid 30 minute lunch break
What is 7?
200
The percentage of subway stops that are underground.
What is 60%?
200
This is the output of the following code fragment:
list = ['a', 'b', 'c', 'd', 'e']
print (list[10:])
What is []?
(there won’t be any error like an IndexError)
200
An nxn (0,1)-matrix with entries defined as follows:
1 if the pairs of vertices are adjacent
0 otherwise
What is an adjacency matrix?
200
The clique number of the graph below
What is 4?
300
The minimum target for sample completion each month?
What is 80%?
300
The only subway line that does not make any stops in Manhattan.
What is the G train?
300
Suppose list1 is [2, 33, 222, 14, 25]. Then this is list1[:-1]
What is [2, 33, 222, 14] ?
300
The eigenvalues of this matrix
What are -1 and -2?
300
A Hamiltonian circuit in the graph shown
What is
400
The number of round-trips a BFA checker is currently scheduled to make daily
What is 2?
400
Jay Z's name honors the J & Z subway lines in this borough, his hometown
What is Brooklyn?
400
This is the output of the following Python code:
x = "abcdef"
while i in x:
print(i, end=" ")
What is NameError?
(i is not defined)
400
The projection of (a,b,c) onto the z-axis?
What is (0,0,c)
400
The minimum spanning tree of this graph
What is
500
The number of hours a part-time checker works
What is 6 hours?
500
The train line with the longest route.
What is the A line?
The 31-mile journey carries passengers from 207th St. in Manhattan, to Far Rockaway in Queens
500
This is the output of the following Python code:
A = [[1, 2, 3],
[4, 5, 6],
[7, 8, 9]]
[A[i][i] for i in range(len(A))]
What is [1, 5, 9]?
500
Another word for a singular matrix, such as the one below:
What is invertible?
500
The minimum cost from vertex b to vertex f
What is 6? 