20171117_FUNCIONES, C (gcc)

20171117_FUNCIONES

#include <stdio.h>
#include <stdlib.h>

unsigned long long factorial(unsigned short a);
unsigned short mcd(unsigned short a, unsigned short b);
short digitoDenN(unsigned long long n, unsigned short d);
short digitosRepetidos(unsigned long long n);

int main()
{
    unsigned short n;
    unsigned long long f;

printf("Valor de n... "); scanf(" %hu", &n);
    f = factorial(n);
    printf("El factorial de %hu es %llu\n", n, f);

unsigned short a, b, c;
    printf("Valor de a... "); scanf(" %hu", &a);
    printf("Valor de b... "); scanf(" %hu", &b);
    c = mcd(a, b);
    printf("El mcd de %hu y %hu es %hu\n", a, b, c);

unsigned long long N;
    unsigned short digito;

printf("Valor de N... "); scanf(" %llu", &N);
    do{
        printf("Digito... "); scanf(" %hu", &digito);
    }while(digito > 9);
    if(digitoDenN(N, digito))
    { printf("El digito %hu SI esta en %llu\n", digito, N); }
    else
    { printf("El digito %hu NO esta en %llu\n", digito, N); }
    if(digitosRepetidos(N))
    { printf("%llu SI tiene digitos repetidos\n", N); }
    else
    { printf("%llu NO tiene digitos repetidos\n", N); }

return 0;
}

unsigned long long factorial(unsigned short a)
{
    unsigned long long f = 1;
    while(a) f *= a--;
    return f;
}

unsigned short mcd(unsigned short a, unsigned short b)
{
    short aux;
    while(b)
    {
        aux = a;
        a = b;
        b = aux % b;
    }
    return a;
}

short digitoDenN(unsigned long long n, unsigned short d)
{
    while(n)
    {
        if(n % 10 == d) return 1;
        n /= 10;
    }
    return 0;
}

short digitosRepetidosNOVATO(unsigned long long n)
{
    unsigned short d;
    unsigned long long restoNumero;
    while(n)
    {
        d = n % 10;
        restoNumero = n / 10;
        while(restoNumero)
        {
            if(restoNumero % 10 == d) { return 1; }
            restoNumero /= 10;
        }
        n /= 10;
    }
    return 0;
}

short digitosRepetidos(unsigned long long n)
{
    while(n)
    {
        if(digitoDenN(n / 10, n % 10)) { return 1; }
        n /= 10;
    }
    return 0;
}


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