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Golfing suggestion.

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edited Aug 4, 2018 at 2:48

7.3k
1
22
44

C (gcc), 67 5656 55 bytes

Saved eleven bytes thanks to O.O.Balance.
Saved a byte thanks to ceilingcat.

m;x(char*_){for(m=1;*_++;m*=10)*_*=*_!=47;m=m==atoi*_*=*_^47;m=m==atoi(_);}

Try it online!Try it online!

C (gcc), 67 56 bytes

Saved eleven bytes thanks to O.O.Balance.

m;x(char*_){for(m=1;*_++;m*=10)*_*=*_!=47;m=m==atoi(_);}

C (gcc), 67 56 55 bytes

Saved eleven bytes thanks to O.O.Balance.
Saved a byte thanks to ceilingcat.

m;x(char*_){for(m=1;*_++;m*=10)*_*=*_^47;m=m==atoi(_);}

Golfing suggestion.

Source Link

edited Jul 25, 2018 at 14:33

7.3k
1
22
44

C (gcc), 6767 56 bytes

Saved eleven bytes thanks to O.O.Balance.

fm;x(r,a,cchar*_)char*a,*r;{for(c=1,a=r;*a++;c*=10m=1;*_++;m*=10)*a*=*a*_*=*_!=47;c=atoi=47;m=m==atoi(a_)==c;;}

Try it online!Try it online!

C (gcc), 67 bytes

f(r,a,c)char*a,*r;{for(c=1,a=r;*a++;c*=10)*a*=*a!=47;c=atoi(a)==c;}

C (gcc), 67 56 bytes

Saved eleven bytes thanks to O.O.Balance.

m;x(char*_){for(m=1;*_++;m*=10)*_*=*_!=47;m=m==atoi(_);}

Source Link

created Jul 25, 2018 at 12:07

7.3k
1
22
44

C (gcc), 67 bytes

f(r,a,c)char*a,*r;{for(c=1,a=r;*a++;c*=10)*a*=*a!=47;c=atoi(a)==c;}