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Code Golf

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  • \$\begingroup\$ I think you need a function that only takes n as input. \$\endgroup\$ Commented Apr 20, 2017 at 0:52
  • \$\begingroup\$ @ChristianSievers fixed \$\endgroup\$ Commented Apr 20, 2017 at 9:13
  • 1
    \$\begingroup\$ Some things to golf for your current code: int h(String s){int m=0;for(int c:s.toCharArray())m+=c-48;return m;}int g(String t){int d=1,c=0;for(String s:t.split("[^0-9]"))d*=h(s);for(String s:t.split("[^A-Z]"))c+=s.charAt(0)-65;return d==c?1:0;}int f(String t,int n){int m=0;if(t.length()==n)return g(t);for(int d=48;d<58;)m+=f(t+d++,n);for(int c=65;c<91;)m+=f(t+c++,n);return m;}int s(int n){return f("",n);} (365 bytes) You can compare your current version with this one to see the changes I did (too much to fit in the remainder of this comment). :) \$\endgroup\$ Commented Apr 20, 2017 at 9:35
  • \$\begingroup\$ @KevinCruijssen thx, 17 bytes off now \$\endgroup\$ Commented Apr 20, 2017 at 9:42