NPTEL Problem Solving Through Programming in C Week 5 Assignment(With Programming) Sol August 2024

In this video, we provide a comprehensive solution for the Week 5 assignment of the NPTEL course "Problem Solving Through Programming in C," offered by IIT Kharagpur for the August 2024 session. This video covers both theoretical and programming aspects, offering step-by-step explanations to help you understand the core concepts and solve the assignment problems effectively.

Whether you're struggling with specific questions or want to confirm your answers, this video will guide you through the necessary coding techniques and problem-solving strategies.

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[CodingOClock]

Programming Question 1:

int sum = 0; // Initialize sum here

/* Calculate the sum of proper divisors */
for (int i = 1; i <= N / 2; i++) {
if (N % i == 0) {
sum += i;
}
}

/* Check if the sum of proper divisors is equal to N */
if (sum == N && N > 0) {
printf("\n%d is a perfect number.", N);
} else {
printf("\n%d is not a perfect number.", N);
}

return 0;
}

Programming Question 2:

int count;
if (N == 0) {
count = 1; // Special case for 0
} else {
count = 0; // Initialize count here
int temp = N; // Use a temporary variable to avoid modifying N
while (temp != 0) {
temp /= 10;
count++;
}
}

printf("The number %d contains %d digits.", N, count);

return 0;
}

Programming Question 3:

if (N > 0 && (N & (N - 1)) == 0) {
printf("%d is a number that can be expressed as power of 2.", N);
} else {
printf("%d cannot be expressed as power of 2.", N);
}

return 0;
}

Programming Question 4:

for (int i = N; i > 0; i--) {
for (int j = 0; j < i; j++) {
printf("*");
}
printf("\n");
}

return 0;
}