Write a C program to convert binary to decimal using functions.
/* find 2^findPower value */
int findPower(int input, int power) {
int i = 0, result = 1;
/* 2^0 is 1 */
if (power == 0)
return 1;
/* find 2^findPower value */
for (i = 0; i < power; i++) {
result = result * input;
}
/* return the calculated value */
return result;
}
/* converts binary value to decimal */
int binaryToDecimal(int input) {
int result = 0, rem, i = 0;
while (input > 0) {
rem = input % 10;
result = result + (rem * findPower(2, i));
input = input / 10;
i++;
}
return (result);
}
int main() {
int input, result = 0, rem;
/* get the input from the user */
printf("Enter your input:");
scanf("%d", &input);
/* binary to decimal */
result = binaryToDecimal(input);
/* print the resultant decimal value */
printf("Result: %d\n", result);
return 0;
}
Output:
jp@jp-VirtualBox:~/$ ./a.out
Enter your input:1111
Result: 15
Enter your input:1111
Result: 15
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