Detecting Universal Sink in Directed Graphs Using Adjacency Matrix
A universal sink in a directed graph is a vertex with in-degree |V|-1 and out-degree 0. Given an adjacency matrix representation, we can determine the existence of such a vertex in O(V) time by simultaneously traversing rows and columns.
func findUniversalSink(matrix [][]int) int {
n := len(matrix)
candidate := 0
for i := 0; i ...
Posted on Tue, 15 Sep 2026 16:48:50 +0000 by jjk2