C Language Example - Binary and Decimal Interconversion
Binary and decimal interconversion.
Example - Binary to Decimal Conversion
#include <stdio.h>
#include <math.h>
int convertBinaryToDecimal(long long n);
int main()
{
long long n;
printf("Enter a binary number:");
scanf("%lld", &n);
printf("Binary number %lld converted to decimal is %d", n, convertBinaryToDecimal(n));
return 0;
}
int convertBinaryToDecimal(long long n)
{
int decimalNumber = 0, i = 0, remainder;
while (n!=0)
{
remainder = n%10;
n /= 10;
decimalNumber += remainder*pow(2,i);
++i;
}
return decimalNumber;
}
The output result is:
输入一个二进制数: 110110111 二进制数 110110111 转换为十进制为 439
Example - Decimal to Binary Conversion
#include <stdio.h>
#include <math.h>
long long convertDecimalToBinary(int n);
int main()
{
int n;
printf("Enter a decimal number:");
scanf("%d", &n);
printf("Decimal number %d converted to binary is %lld", n, convertDecimalToBinary(n));
return 0;
}
long long convertDecimalToBinary(int n)
{
long long binaryNumber = 0;
int remainder, i = 1, step = 1;
while (n!=0)
{
remainder = n%2;
printf("Step %d: %d/2, remainder = %d, quotient = %d\n", step++, n, remainder, n/2);
n /= 2;
binaryNumber += remainder*i;
i *= 10;
}
return binaryNumber;
}
The output result is:
输入一个十进制数: 100 Step 1: 100/2, 余数 = 0, 商 = 50 Step 2: 50/2, 余数 = 0, 商 = 25 Step 3: 25/2, 余数 = 1, 商 = 12 Step 4: 12/2, 余数 = 0, 商 = 6 Step 5: 6/2, 余数 = 0, 商 = 3 Step 6: 3/2, 余数 = 1, 商 = 1 Step 7: 1/2, 余数 = 1, 商 = 0 十进制数 100 转换为二进制位 1100100other extensions