NPTEL Problem Solving Through Programming in C Assignment Solutions Week 4 2023

NPTEL Problem Solving Through Programming in C Assignment Solutions Week 4

Q1. The control/conditional statements used in C is/are

a. ‘if-else’ statements
b. ‘switch’ statements
c. Both (a) and (b)
d. None of these

Answer: Option C

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Q2. What is the other statement that can avoid multiple nested if conditions?

Answer: b. ‘switch’ statements

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Q3. The loop which is executed at least one is

Answer: b. do-while

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Q4. ‘switch’ statement cannot use which of the following datatype:

Answer: d. float

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Q5. Which of the following is a C Conditional Operator?

Answer: a. ?:

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Q6. What is the output of the following code?

#include<stdio.h> 
int main() 
{
int x=0; 
x=3<2 ? printf("5"): printf("3"); 
printf("%d",x);
return 0;
}

Answer: 31

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Q7. Which of the following statement is correct regarding C ‘if-else’ statement?

Answer: c. ‘else’ or ‘else if’ is optional with ‘if’ statement.

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Q8. What is the output of the following code

#include<stdio.h> 
int main() { 
   if(1 > 5)
	printf("Swayam\n"); 
	printf("C Programming"); 
return 0;
}

Answer: b. C Programming

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Q9. What will be the value of ‘i’ after the execution of the following statements?
Assume the initial values as i = 8; j = 5; k=0.

k=(j>5)?(i<5)?i-j:j-i:k-j;
i-=(k)?(i)?(j):(i):(k);

Answer: 3

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Q10. What will be the value of a, b, c after the execution of the followings?

int a = 5, b=7, c = 111;
c/= ++a * b–;

Answer: c. a=6, b=6, c=2;

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Problem Solving Through C Programming Solutions Week 4

Q1.

if (n2>n1)
    {
    if(n1 < n3)
  printf("%d is the smallest number.", n1);
 else
 printf("%d is the smallest number.", n3);
    }
    else
    {
  if(n2 < n3)
 printf("%d is the smallest number.", n2);
 else
 printf("%d is the smallest number.", n3);
    }
}

Q2.

fact=1;
   for(int i=n;i>0;i--)
   {
     fact*=i;
   }

printf("The Factorial of %d is : %ld",n,fact);

}

Q3.

 for(int i=2;i<=N;i++)
{
  if(i%2==0)
  sum+=i;
}
printf("Sum = %d", sum);
}

Q4.

  Last_digit =N%10;
 while(N>0)
 {
   First_digit=N%10;
   N/=10;
 }

Disclaimer: These answers are provided only for the purpose to help students to take references. This website does not claim any surety of 100% correct answers. So, this website urges you to complete your assignment yourself.

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