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1. Which of the following expressions accesses the (i,j)th entry of an (m x n) matrix stored in column-major form?
n x (i -1) + j
m x (n-j) + j
m x(j -1) + i
n x(m-i) + j
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2. Sparse matrices have
many zero entries
higher dimension
many non-zero entries
none of the above
3. The minimum number of edges in a connected cyclic graph on n vertices is
n-1
n
n+1
4. The minimum number of colors needed to color a graph having n (>3) vertices and 2 edges is
4
3
2
1
5. Which of the following is useful in traversing a given graph by breadth-first search?
stacks
set
list
Queque
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