For a given number in binary, having combinations of 1s and 0s only, write a program that outputs the decimal equivalent of the binary number represented by the binary number. The input binary number will always be of length 4. You can write your program accordingly For example, for the input provided as follows: 1111 The function should return  15 Explanation: For input, 1111 whose length is 4, your program should output 15, since the input represents the binary equivalent of decimal number 15 Another example, for the input provided as follows: 1100 The function should return  12

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter5: Control Structures Ii (repetition)
Section: Chapter Questions
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For a given number in binary, having combinations of 1s and 0s only, write a program that outputs the decimal equivalent of the binary number represented by the binary number. The input binary number will always be of length 4. You can write your program accordingly

For example,
for the input provided as follows:

1111

The function should return 

15


Explanation:

For input, 1111 whose length is 4, your program should output 15, since the input represents the binary equivalent of decimal number 15

Another example,
for the input provided as follows:

1100

The function should return 

12

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