Algorithm for Obtaining Optimal Arrangement of a Connected-(r, s)-out-of-(m, n): F System - The Case of m=r and s=2 -. - Toru Omura; Tomoaki Akiba; Xiao Xiao 002; Hisashi Yamamoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015)