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added 54 characters in body

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edited Jul 9, 2016 at 11:03

C, 6363 60 bytes

f(char*s){for(;*s;s++)isalpha(putchar(*s),isalpha(*s)&&putchar(32^*s);}

Uses the fact that 'a' XOR 32 == 'A', etc.

Three bytes saved thanks to FryAmTheEggman.

f(char*s){for(;*s;s++)putchar(*s),isalpha(*s)&&putchar(32^*s);}

Uses the fact that 'a' XOR 32 == 'A', etc.

f(char*s){for(;*s;s++)isalpha(putchar(*s))&&putchar(32^*s);}

Uses the fact that 'a' XOR 32 == 'A', etc.

Three bytes saved thanks to FryAmTheEggman.

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created Jul 8, 2016 at 22:42

f(char*s){for(;*s;s++)putchar(*s),isalpha(*s)&&putchar(32^*s);}

Uses the fact that 'a' XOR 32 == 'A', etc.