Q:

Python program to repeat M characters of a string N times

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mahmoud2506
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2022-05-19
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Given a string and we have to repeat it's M characters N times using python program.

Question:

Here we are provided with a string and a non-negative integer N, here we would consider that the front of the string is first M characters, or whatever is there in the string if the string length is less than M. Now our task is to return N copies of the front. Also, consider these cases,

Example:

    mult_times('Chocolate', 3, 2) = 'ChoCho'
    mult_times('Chocolate', 4, 3) = 'ChocChocChoc'
    mult_times ('jio', 2, 3) = 'jijiji'
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mahmoud2506
2022-05-19
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Here we would first simply write code for string value equal to M or less. As we are unknown for the value of N we would store our string value in a variable and run a for loop for N times and each time we would store our value in that variable.

Let's understand this by Code, which would be easier to understand,

Code:

def mult_times(str, m, n):
    front_len = m
    if front_len > len(str):
        front_len = len(str)
    front = str[:front_len]

    result = ''
    for i in range(n):
        result = result + front
    return result


print (mult_times('IncludeHelp', 7, 5))
print (mult_times('prem', 4, 3))
print (mult_times('Hello', 3, 7))

Output

IncludeIncludeIncludeIncludeInclude
prempremprem
HelHelHelHelHelHelHel

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