#include <stdio.h>
int main() {
long long binary, decimal = 0; // Declare variables to store binary and decimal numbers
int remainder;
printf("Enter a binary number: ");
scanf("%lld", &binary); // Get binary number from user
while (binary != 0) {
remainder = binary % 10; // Get the last digit of the binary number
decimal = decimal * 2 + remainder; // Update decimal value using the formula: decimal = decimal * 2 + remainder
binary /= 10; // Remove the last digit from the binary number
}
printf("The decimal equivalent is: %lld\n", decimal); // Print the decimal equivalent
return 0;
}
#include <stdio.h>
int main() {
int decimal, binary[32], i = 0; // Declare variables to store decimal number, binary array, and index
printf("Enter a decimal number: ");
scanf("%d", &decimal); // Get decimal number from user
while (decimal != 0) {
binary[i++] = decimal % 2; // Store the current binary digit (remainder when divided by 2) in the binary array
decimal /= 2; // Divide the decimal number by 2 to get the next digit
}
printf("The binary equivalent is: ");
for (int j = i - 1; j >= 0; j--) // Iterate over the binary array in reverse order
printf("%d", binary[j]); // Print each binary digit
printf("\n");
return 0;
}
#include <stdio.h>
int main() {
int decimal, octal[20], i = 0; // Declare variables to store decimal number, octal array, and index
printf("Enter a decimal number: ");
scanf("%d", &decimal); // Get decimal number from user
while (decimal != 0) {
octal[i++] = decimal % 8; // Store the current octal digit (remainder when divided by 8) in the octal array
decimal /= 8; // Divide the decimal number by 8 to get the next digit
}
printf("The octal equivalent is: ");
for (int j = i - 1; j >= 0; j--) // Iterate over the octal array in reverse order
printf("%d", octal[j]); // Print each octal digit
printf("\n");
return 0;
}
#include <stdio.h>
int main() {
int octal, decimal = 0, i = 0; // Declare variables to store octal number, decimal equivalent, and position
printf("Enter an octal number: ");
scanf("%o", &octal); // Get octal number from user
while (octal != 0) {
decimal += (octal % 10) * (1 << (3 * i)); // Convert current octal digit to decimal and add to decimal
octal /= 10; // Remove the current octal digit
i++; // Increment position
}
printf("The decimal equivalent is: %d\n", decimal); // Print the decimal equivalent
return 0;
}
#include <stdio.h>
#include <string.h>
// Function to convert a hexadecimal number to its binary equivalent
void hexToBinary(char hex[], char binary[]) {
int i = 0;
while (hex[i]) {
switch (hex[i]) {
case '0':
strcat(binary, "0000"); // Append "0000" to binary
break;
case '1':
strcat(binary, "0001"); // Append "0001" to binary
break;
// ... (cases for '2' to '9' omitted for brevity)
case 'A':
case 'a':
strcat(binary, "1010"); // Append "1010" to binary
break;
case 'B':
case 'b':
strcat(binary, "1011"); // Append "1011" to binary
break;
// ... (cases for 'C', 'D', 'E', and 'F' omitted for brevity)
}
i++;
}
}
int main() {
char hex[17], binary[65] = ""; // Declare arrays for hexadecimal and binary
printf("Enter a hexadecimal number: ");
scanf("%16s", hex); // Get hexadecimal number from user
hexToBinary(hex, binary); // Convert hexadecimal to binary
printf("The binary equivalent is: %s\n", binary); // Print the binary equivalent
return 0;
}