how to convert binary to decimal in c

In case you want to work with long binary numbers like 20 bits or 30 bit, you can use a string variable to store the binary numbers. Let's see how the while loop in the convert() function works. For Example: If the binary number is 111. dec_value = 1* (2^2) + 1* (2^1) + 1* (2^0) = 7. Method 1: Using Positions. Firstly, initialize the decimal_num variable with value 0, and add the binary number in the bin_num variable, and initialize rem. Data Structures and Algorithms The decimal number system consists of ten single-digit numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. Alternatively, we can directly use the bitset class from the STL library.bitset represents a fixed-size sequence of N bits, and it offers multiple built-in methods to manipulate the binary data efficiently. If we left shift 1 by n times ( 1<
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