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Tasks involving writing interpreters for various languages or formalisms.
0
votes
Interpret PlusOrMinus
C (gcc), 59 bytes
char i;f(char*c){i+=*c==43;*c==45&&putchar(i--);f(c+!!*c);}
Ungolfed:
char i; // the counter
/*implicit int here */ f (char* c) {
// increment the counter if *c is '+' (43), sin …