Question

Como usar sequências de dados ou arrays em programação estruturada?

Answer 1

Em python, a estrutura básica de sequências de dados é chamada de lista. O programa abaixo explora um pouco essa estrutura:

Python 2

# Keep all the prime numbers from 1 to 100
import numpy as np
def is_prime(n):
    prime=True
    count = 2
    while(prime and count<=np.floor(np.sqrt(n))):
        print count
        if(np.mod(n,count)==0):
            prime=False
        count=count+1                
    if(prime):
        return True
    else:
        return False


if __name__ == '__main__':

    primes=[]
    is_prime(49)
    n=100
    for i in range(2,n+1):
        if(is_prime(i)):
            primes.append(i)


    print primes   # All the primes
    print primes[9] # The 9th prime number

    #I want to show all the prime numbers

    for prime in primes:
        print prime


    #I want to multiply the 10 first primes   
    multiplePrime=1
    for i in range(10):
        multiplePrime=multiplePrime*primes[i]
    print multiplePrime        
    print primes[2:5]    # Slices of the list

Python 3

import numpy as np
def is_prime(n):
    prime=True
    count = 2
    while(prime and count<=np.floor(np.sqrt(n))):
        print (count)
        if(np.mod(n,count)==0):
            prime=False
        count=count+1                
    if(prime):
        return True
    else:
        return False


if __name__ == '__main__':
    primes=[]
    n=100
    for i in range(2,n+1):
        if(is_prime(i)):
            primes.append(i)

    print (primes)   # All the primes
    print (primes[9]) # The 9th prime number

    #I want to show all the prime numbers

    for prime in primes:
        print (prime)

    #I want to multiply the 10 first primes   
    multiplePrime=1
    for i in range(10):
        multiplePrime=multiplePrime*primes[i]
    print (multiplePrime)        

    print (primes[2:5])    # Slices of the list