2 ms·
slightly different alorithm: http://www.cut-the-knot.org/blue/div7-11-13.shtml http://www.cut-the-knot.org/blue/div7-11-13.shtml
by fxj 16y ago
slightly different alorithm:
http://www.cut-the-knot.org/blue/div7-11-13.shtml http://www.cut-the-knot.org/blue/div7-11-13.shtml