Consider the following program,

July 5, 2021 in C and CPP

Consider the following program,

1.4 Consider the following program,
main( )
{
int x = 49;
for(;x;)
x--;
printf(“%d\n”, x);
}
the output of the program will be
A) 49
B) 0
C) -49
D) none of the above

July 5, 2021 in C and CPP

What is the missing statement in the following function which copies string x into string y

1.3 What is the missing statement in the following function which copies string x into string y
void strcpy( char *x, char *y)
{
while (*y != ‘\0’)
………………… /* missing stament */
*x = ‘\0’;
}
A) x = y
B) *x++ = *y++
C) (*x)++ = (*y)++
D) none of the above

July 5, 2021 in C and CPP

Given the following code fragment: int main(void)

Given the following code fragment:
int main(void)
{
int raw[20], i, sum=0;
int *p = raw;
for (i=0; i < 20; i++)
*(p+i) = I;
for(i=0; i < 20; I += sizeof(int))
sum += *(p+i)
printf(“sum = %d\n”, sum);
return();
}
What will be the result of execution?

A) sum = 10
B) sum = 40
C) sum = 60
D) sum = 190

July 5, 2021 in C and CPP

Given the following code fragment:

1.1 Given the following code fragment:
void main(void)
{
char x = ‘\0’;
char n = ‘N’;
printf(“%u” ”%s\n”, &n, &n);
}
What will be the result of execution?
A) ddddd N ( where d represents any digit)
B) 78 N
C) 78 garbage
D) compilation error

July 5, 2021 in C and CPP

It is said that “C is a middle level language and is good for system level programming.”

b) It is said that “C is a middle level language and is good for system level programming.”
Describe three facilities available in ‘C’ which support this statement.

July 5, 2021 in C and CPP

Draw a flowchart and then write a C program to enter the roll number

a) Draw a flowchart and then write a C program to enter the roll number and marks of any
three subjects of few students from the keyboard and write to a file.

July 5, 2021 in C and CPP

Develop a flowchart and logic to implement the stack data structure using link list

b) Develop a flowchart and logic to implement the stack data structure using link list.

July 5, 2021 in C and CPP

Explain the difference between parameter passing mechanism “Call by value” and “Call by reference”.

a) Explain the difference between parameter passing mechanism “Call by value” and “Call
by reference”. Which is more efficient and why?

July 5, 2021 in C and CPP

Develop a flowchart and then write a C program to find the occurrence (single or multiple) of a substring in a given string.

7. Develop a flowchart and then write a C program to find the occurrence (single or
multiple) of a substring in a given string. The substring and string are entered by the
user. Also point out the location at which the substring occurs.

July 5, 2021 in C and CPP

Write an algorithm and then develop a program to evaluate the roots of a quadratic equation.

6. Write an algorithm and then develop a program to evaluate the roots of a quadratic
equation. Define and use a function cal_roots() to calculate the roots such that roots are
also available in calling function i.e. use pointers.