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17 changes: 17 additions & 0 deletions solutions/cpp/grains/1/grains.cpp
Original file line number Diff line number Diff line change
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#include "grains.h"

namespace grains {

// Devuelve los granos en una casilla específica (1 a 64)
unsigned long long square(int index) {
// Desplazamiento de bits: 1ULL movido (index - 1) posiciones a la izquierda
return 1ULL << (index - 1);
}

// Devuelve el total de granos en todo el tablero (2^64 - 1)
unsigned long long total() {
// En binario sin signo, invertir los bits de un 0 da el valor máximo posible
return ~0ULL;
// El operador de inversión es '~'
}
}
11 changes: 11 additions & 0 deletions solutions/cpp/grains/1/grains.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
#pragma once

namespace grains {

// Devuelve los granos en una casilla específica (1 a 64)
unsigned long long square(int index);

// Devuelve el total de granos en el tablero
unsigned long long total();

}