Answer:
#include <stdio.h>
#include <string.h>
int main(){
char number[100];
printf("Number: ");
scanf("%s", number);
int sum = 0;
for(int i =0;i<strlen(number);i++){
sum+= number[i] - '0';
}
printf("Sum: %d",sum);
return 0;
}
Explanation:
This declares a c string of 100 characters
char number[100];
This prompts user for input
printf("Number: ");
This gets user input
scanf("%s", number);
This initializes sum to 0
int sum = 0;
This iterates through the input string
for(int i =0;i<strlen(number);i++){
This adds individual digits
sum+= number[i] - '0';
}
This prints the calculated sum
printf("Sum: %d",sum);
return 0;
Answer: The difference between call by value and call by reference is that in call by value the actual parameters are passed into the function as arguments whereas in call by reference the address of the variables are sent as parameters.
Explanation:
Some examples are:
call by value
#include <stdio.h>
void swap(int, int);
int main()
{ int a = 10, b= 20;
swap(a, b);
printf("a: %d, b: %d\n", a, b);
}
void swap(int c, int d)
{
int t;
t = c; c = d; d = t;
}
OUTPUT
a: 10, b: 20
The value of a and b remain unchanged as the values are local
//call by reference
#include <stdio.h>
void swap(int*, int*);
int main()
{
int a = 10, b = 20;
swap(&a, &b); //passing the address
printf("a: %d, b: %d\n", a, b);
}
void swap(int *c, int *d)
{
int t;
t = *c; *c = *d; *d = t;
}
OUTPUT
a: 20, b: 10
due to dereferencing by the pointer the value can be changed which is call by reference
The value of result of the code segment is executed is known to be 4.
<h3>Why is the value of the code segment so?</h3>
When the result of is not executed because the condition is said to be false and also when there is a false condition is, the else statement will be said to be true
Therefore, result = result + 2; -> result is brought up by 2 to bring about 4 and as such, the value of result of the code segment is executed is known to be 4.
Learn more about scores from
brainly.com/question/19492935
#SJ1
An Object Class. Hopefully this answer is right.
