NPTEL Problem Solving Through Programming In C WEEK 7 Assignment 2022

Problem-solving-through-Programming-In-C-Week7-Programming-Assignment-Solutions

NPTEL Problem solving through Programming In C Week 7 All Programming Assignment Solutions | Swayam 2022. With the growth of Information and Communication Technology, there is a need to develop large and complex software.

ABOUT THE COURSE:

This course is aimed at enabling the students to:
  • Formulate simple algorithms for arithmetic and logical problems
  • Translate the algorithms to programs (in C language)
  • Test and execute the programs and  correct syntax and logical errors
  • Implement conditional branching, iteration and recursion
  • Decompose a problem into functions and synthesize a complete program using divide and conquer approach
  • Use arrays, pointers and structures to formulate algorithms and programs
  • Apply programming to solve matrix addition and multiplication problems and searching and sorting problems 
  • Apply programming to solve simple numerical method problems, namely rot finding of function, differentiation of function and simple integration
COURSE LAYOUT
    • Week 1 : Introduction to Problem Solving through programs, Flowcharts/Pseudo codes, the compilation process, Syntax and Semantic errors, Variables and Data Types
    • Week 2 : Arithmetic expressions, Relational Operations, Logical expressions; Introduction to Conditional Branching
    • Week 3 : Conditional Branching and Iterative Loops
    • Week 4 : Arranging things : Arrays
    • Week 5 : 2-D arrays, Character Arrays and Strings 
    • Week 6 : Basic Algorithms including Numerical Algorithms
    • Week 7 : Functions and Parameter Passing by Value
    • Week 8 : Passing Arrays to Functions, Call by Reference
    • Week 9 : Recursion
    • Week 10 : Structures and Pointers
    • Week 11 : Self-Referential Structures and Introduction to Lists
    • Week 12 : Advanced Topics

Once again, thanks for your interest in our online courses and certification. Happy learning!

Course Name : “Problem Solving through Programming In C 2022

Question : 1  Write a C program to find the sum of all elements of each row of a matrix.
Example:
For a matrix
 4 5 6
 6 7 3
 1 2 3

 The output will be
 15
 16
 6

				
					#include <stdio.h>
int main()
{
    int matrix[20][20];
    int i,j,r,c;

    scanf("%d",&r); 
    scanf("%d",&c);  

    for(i=0;i< r;i++) 
    {
        for(j=0;j< c;j++)
        {
            scanf("%d",&matrix[i][j]); 
        }
    }
    int sum;
    for(i=0;i< r;i++)
    {
        sum=0;      
        for(j=0;j< c;j++)
        {
            sum += matrix[i][j];
        }
        printf("%d\n",sum);
    }
 
}
				
			

Course Name : “Problem Solving through Programming In C

Question : 2  Write a C program to find subtraction of two matrices i.e, matrix_A – matrix_B=matrix_C.

If the given martix are:
 2 3 5 and 1 5 2 Then the output will be 1 -2 3
 4 5 6        2 3 4                                          2 2 2
 6 5 7        3 3 4                                          3 2 3

				
					#include <stdio.h>
int main()
{
    int matrix_A[20][20], matrix_B[20][20], matrix_C[20][20];
    int i,j,row,col;
    scanf("%d",&row); 
    scanf("%d",&col);
 
    for(i=0; i<row; i++)
    {
        for(j=0; j<col; j++)
        {
            scanf("%d", &matrix_A[i][j]);
        }
    }
    
    for(i=0; i<row; i++)
    {
        for(j=0; j<col; j++)
        {
            scanf("%d", &matrix_B[i][j]);
        }
    }
    for(i=0; i<row; i++)
    {
        for(j=0; j<col; j++)
        {
    
            matrix_C[i][j] = matrix_A[i][j] - matrix_B[i][j];
        }
    }

    for(i=0; i<row; i++)
    {
        for(j=0; j<col; j++)
        {
            printf("%d ", matrix_C[i][j]);
        }
        printf("\n");
    }
    return 0;
}
				
			

Course Name : “Problem Solving through Programming In C

Question : 3  Write a C program to print lower triangle of a square matrix.
For example the output of a given matrix
2 3 4 will be 2 0 0
5 6 7             5 6 0
4 5 6             4 5 6

				
					#include <stdio.h>
int main()
{
    int matrix[20][20];
    int i,j,r;
       
    scanf("%d", &r);

    for(i=0;i< r;i++) 
    {
        for(j=0;j<r; j++)
        {
            scanf("%d",&matrix[i][j]);
        }
    }
    for(i=0; i<r; i++) 
    {
    	for(j=0; j<r; j++)
        {
        	if(i>=j)
            	printf("%d ", matrix[i][j]);
            else
            	printf("%d ", 0);
        }
        printf("\n");
    }
    return 0;
}

				
			

Course Name : “Problem Solving through Programming In C

Question : 4 Write a C program to print Largest and Smallest Word from a given sentence. If there are two or more words of same length, then the first one is considered. A single letter in the sentence is also consider as a word.

				
					#include<stdio.h>
#include<string.h>
int main()
{
    char str[100]={0},substr[100][100]={0}; 
    scanf("%[^\n]s", str);
     int i=0,j=0,k=0,a,minIndex=0,maxIndex=0,max=0,min=0;
    char c; 
    while(str[k]!='\0')  //for splitting sentence into words 
    {
        j=0;
        while(str[k]!=' '&&str[k]!='\0' && str[k]!='.')
        {
            substr[i][j]=str[k];
            k++;
            j++;
        }
        substr[i][j]='\0';
        i++;
        if(str[k]!='\0')
        {
            k++;
        }        
    }
    int len=i;
    max=strlen(substr[0]);
    min=strlen(substr[0]);

    for(i=0;i<len;i++)
    {
       a=strlen(substr[i]);
       if(a>max)
        {
            max=a;
            maxIndex=i;
        }
        if(a<min)
        {
            min=a;
            minIndex=i;
        }
    }    
    printf("Largest Word is: %s\nSmallest word is: %s\n",substr[maxIndex],substr[minIndex]);
    return 0;  
}