fix topological sort

theforestvn88 · theforestvn88 · commit f312ba1e4d2a · 2025-02-14T15:40:50.000+07:00
diff --git a/2301-2400/2392_build_a_matrix_with_conditions.rb b/2301-2400/2392_build_a_matrix_with_conditions.rb
@@ -40,7 +40,7 @@ def topological_sort(n, adj)
     order = []
     queue = (1..n).select { |i| indegrees[i].zero? }
     until queue.empty?
-        u = queue.pop
+        u = queue.shift
         order.push(u)
         adj[u].each { |v|
             indegrees[v] -= 1
