Crux Mathematicorum Vol. 50, No. 3 « v50, n2 indexv50, n4 » March, 2024 PageContents 103 MathemAttic: No. 53 103 Problems: MA261–MA265 106 Solutions: MA236–MA240 110 Problem Solving Vignettes: No. 31 — Shawn Godin 116 GCD: A Modern Approach — Navid Safaei 124 Competitions Highlights 127 Olympiad Corner: No. 421 127 Problems: OC671–OC675 129 Solutions: OC646–OC650 136 Cop and Robber on Oriented Graphs — Jane Butterfield, Felicia Halliday, Gary MacGillivray 148 Problems: 4921–4930 152 Solutions: 4871–4880 Read the issue below Download this issue (PDF) Crux Mathematicorum