NPTEL INTRODUCTION TO PROGRAMMING IN C WEEK 3 ANSWERS (JUL-DEC 2020)

 Question 1:

#include<stdio.h>

int find_odd(int k)

{

  int num;

  int counter = 0;

  int check = 0;

  

  while(num != -1)

  {

    scanf("%d",&num);

    if(num%2!=0)

    {

      counter++;

      if(counter == k)

      {

        printf("%d",num);

        check = 1;

      }

    }

    

       

  }

   if((counter != k) && (check == 0))

      printf("-1");

  return 0;

}

int main()

{

  int k;

  scanf("%d",&k);

  find_odd(k);

  return 0;

}

Question 2:

#include<stdio.h>

int main()

{

  float num1,num2;

  float m_avg;

  

  scanf("%f",&num1);

  

  while(num1 != -1)

  {

    num2 = num1;

    scanf("%f",&num1);

      if(num1!=-1)

        { m_avg = (num1+num2)/2;

    printf("%0.1f ",m_avg);

        }

    

  }

  return 0;

}

    

Question 3:

#include<stdio.h>

int main()

{

  int n;

  scanf("%d",&n);

  int fac = 1;

  

  for(int i = 1; i<n; i++)

  {

    fac = fac*i; 

    if(fac <= n)

     {

        printf("%d ",fac);

      }

    else 

      break;

  }

  return 0;

  

}

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NPTEL PROGRAMMING IN JAVA WEEK 2 ANSWERS (JUL-DEC 2020)

 Question 1:

// Create an object of class Student

// Call 'print()' method of class Student 

// Create an object of class School

// Call 'print()' method of class School

Student obj = new Student();

obj.print();

School obj_1 = new School();

obj_1.print();

 Question 2:

// Create an object of class Printer

// Call 'print()' methods for desired output

Printer obj = new Printer();

obj.print("Hi! I am class STUDENT");

obj.print();

 Question 3:

// Define a method named 'studentMethod()' in class Question

// Call the method named 'print()' in class Question

void studentMethod(){

  

  Question23 obj = new Question23();

  print(obj);

}

 Question 4:

class Answer{

Answer(){

System.out.println("You got nothing.");

}

Answer(int marks, String type){

      this();

System.out.print("You got "+marks+" for an "+type);

}

}

 Question 5:

//Declare variable with name 'nptel', 'space' and 'java' and proper datatype.

//Initialize the variables with proper input

String nptel = "NPTEL", space = " ", java = "JAVA";

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NPTEL INTRODUCTION TO PROGRAMMING IN C WEEK 2 ANSWERS (JUL-DEC 2020)

Question 1:

#include<stdio.h>

int main()

{

  int arr[50][50];

  int n;

  int upper = 1, lower = 1;

  scanf("%d",&n);

  

  for(int i=0; i<n; i++)

  {

    for(int j=0; j<n; j++)

      scanf("%d",&arr[i][j]);

  }

  

  for(int i=0; i<n; i++)

  {

    for(int j=0; j<n; j++)

    {

      if(i>j&&arr[i][j]!=0)

      {

        upper = 0;

      }

      

      else if(j>i&&arr[i][j]!=0)

      {

        lower = 0;

      }

     } 

  }

  

 if(upper == 1 && lower == 0)

   printf("1");

 else if(upper == 0 && lower == 1)

   printf("-1");

 else if (upper == 1 && lower == 1)

   printf("2");

 else 

   printf("0");

  

  return 0;

}

Question 2:

#include<stdio.h>

int main()

{

  int n;

  int arr[100];

  int i=0;

  

  

  while(n!=-1)

  {

    scanf("%d",&n);

    arr[i]=n;

    i++;

  }

  

  for(int j=0; j<i; j++)

    for(int k=j; k<i; k++)

    if(arr[j]<arr[k])

  {

    int temp;

    temp = arr[j];

    arr[j] = arr[k];

    arr[k] = temp;

  }

  

  int distinct=0;

  

  for(int j=0; j<i-1; j++)

  {

    if(arr[j]!=arr[j+1])

      distinct++;

  }

  

  if(distinct>=3)

    printf("1");

  else 

    printf("0");

}

Question 3:

#include<stdio.h>

int main()

{

  int n;

  int arr[100];

  int i=0;

  

  

  while(n!=-1)

  {

    scanf("%d",&n);

    arr[i]=n;

    i++;

  }

  

  for(int j=0; j<i; j++)

    for(int k=j; k<i; k++)

    if(arr[j]<arr[k])

  {

    int temp;

    temp = arr[j];

    arr[j] = arr[k];

    arr[k] = temp;

  }

  

  int distinct=0;

  

  for(int j=0; j<i-1; j++)

  {

    if(arr[j]!=arr[j+1]&&arr[j+1]!=-1)

    {

      distinct=arr[j+1];

      printf("%d",distinct);

      break;

    }

  }

  

  if(distinct==0)

    printf("0");

    

}

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NPTEL PROGRAMMING IN C++ ASSIGNMENT WEEK 2 ANSWERS 2020(JUL-DEC)

 Question 1:

Complex operator*(Complex &p1, Complex &p2) { // LINE-1
    struct Complex p3 = { 0, 0 };
    p3.x = (p1.x)*(p2.x) - (p1.y)*(p2.y); // LINE-2
    p3.y = (p1.x)*(p2.y) + (p1.y)*(p2.x); // LINE-3
    return p3;
}

Question 2:

#include <iostream>
#include <string>
using namespace std;
void print(string a, string b = "Anyone") { // LINE-1

Question 3:

#include <iostream>
using namespace std;
int Double(int a) { // LINE-1
    return a*2;   // LINE-2
}

Question 4:

int main() {
    int *p;
    int arr[10];
  p =  arr;// LINE-1
    
    process(p);
    
        
    return 0;
}

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Programming in Java WEEK 1 NPTEL(JULY - DEC 2020) ASSIGNMNET SOL.

Question 1: 

 

if(radius>0)

       {

perimeter = 2*Math.PI*radius;

    area = (Math.PI)*radius*radius;

          System.out.println(perimeter);

          System.out.print(area);

       }

else 

      System.out.print("please enter non zero positive number");

Question 2:

//Use if...else ladder to find the largest among 3 numbers and store the largest number in a variable called result.

if(x>y)

        {

          if(x>z)

            System.out.print(x);

          else 

            System.out.print(z);

        }

else 

        {

          if(y>z)

            System.out.print(y);

          else

            System.out.print(z);

        }

Question 3:

//Use for or while loop do the operation

  for(int i = 0, j = 0; i<n; i++, j=j+2)

      {

        if(j%3==0)

          sum = sum + j;

      }

  System.out.print(sum);

        

Question 4:

//Use while loop check the number is Armstrong or not.

//store the output(1 or 0) in result variable.

int sum = 0;

int n1 = n;

int counter = 0;

int[] arr = new int[100];

while(n>0)

        {

          int rem = n%10;

          arr[counter] = rem;

          n = n/10;

          counter++;

        }

for(int i=0; i<counter; i++)

        {

          int l = 1;

          for(int j=1; j<=counter; j++)

          {

            l=l*arr[i];

          }

          sum = sum + l;

        }

            

if(sum == n1)

          result = 1;

else 

          result = 0;

System.out.print(result);

          

Question 5:

//Initialize maximum element as first element of the array.  

   //Traverse array elements to get the current max.

   //Store the highest mark in the variable result.

   //Store average mark in avgMarks.

int largest;

int sum = 0;

float avg;

for(i=0;i<arr.length;i++)

  {

        for(int j = i; j<arr.length; j++)

                  if(arr[i]<arr[j])

                {

                  int temp = arr[i];

                  arr[i] = arr[j];

                  arr[j] = temp;

                }

    } 

largest = arr[0];

for(i=0;i<arr.length;i++)

  {

        sum = sum + arr[i];

  } 

avg = sum/arr.length;

System.out.println(largest);

System.out.print(avg);

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Programming in C++ WEEK 1 NPTEL(JULY-DEC 2020) ASSIGNMNET SOL.

 Question 1 :

stack<char> s;    // LINE-1    

    for (int i = 0; i < strlen(str); i++)

        s.push(str[i]);    // LINE-2

Question 2 :

bool StrCmp(string s1, string s2) {

    if (s1.length()>s2.length() || s1.length()<s2.length())    // LINE-1

    

        return 1;    // LINE-2

    else

        return 0;    // LINE-3

}

Question 3 :

typedef void (*Fun_Ptr)(int,int); // LINE-1

Fun_Ptr fp = &add; // LINE-2

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Introduction to Programming in C week 1 NPTEL(JULY - DEC 2020) assignmnet solution

 Question 1 :

#include<stdio.h>

void  main()

{

  int arr[4];

  for(int i=0; i<3; i++)

    scanf("%d",&arr[i]);    //To take input.

  

  int sum = arr[0] + arr[1];

  

  if(sum>arr[2]) //if statement to check wether third number is smaller than the sum of

    printf("1"); //first two.

  else 

    printf("0");

}

Question 2 :

#include<stdio.h>

void main()

{

  int m,n;

  scanf("%d",&m);

  scanf("%d",&n);

  

  int rem = m%n;  //% is used to find the remainder.

  

  if(rem==1)

    printf("1");

  else 

    printf("0");

  

}

Question 3:

#include<stdio.h>

void main()

{

  float arr[4];

  

  for(int i=0; i<3; i++)

    scanf("%f",&arr[i]);

  

  //To check wether the triplet is strictly increasing or decreasing or none.

  

  if(arr[0]>arr[1]&&arr[1]>arr[2])

    printf("1");

  else if(arr[2]>arr[1]&&arr[1]>arr[0])

    printf("1");

  else

    printf("0");

}

  

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