.PAPER SIZE 60,72 .LEFT MARGIN 9 .RIGHT MARGIN 72 .FIRST TITLE;CRPADD: Cryptic Addition - V91.340 .BLANK Author: T_. R_. Wyant III, E_. I_. DuPont de Nemours, Richmond, VA_. .LEFT MARGIN +10 .BLANK;.INDENT -10 Operating System: RSX, VMS .BLANK;.INDENT -10 Language: Fortran-77/VAX FORTRAN .BLANK;.INDENT -10 Memory Required: VMS: 6KB .BREAK RSX: 28KB (no resident libraries) .BLANK;.INDENT -10 Other Hardware Required: None .BLANK;.INDENT -10 Keywords: Mathematical .BLANK .LEFT MARGIN -10 Abstract: .BLANK This program solves cryptic addition problems by a brute-force depth-first search. In its current incarnation it will handle problems of up to 10 addends of up to 60 digits each. The user is prompted for number of addends, verification (useful for large problems) whether or not all solutions are desired, and whether a trace of the logic is desired. Then the actual addends and sum are requested (with a verify pass if desired). Input is case-sensitive.