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- //Funció que detecta si es potencia de 3
- bool es_potencia_de_3(int n) {
- if (n == 1) return true;
- if (n == 0) return false;
- while (n != 1) {
- if (n%3 != 0) return false;
- else n = n/3;
- }
- return true;
- }
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