Problem Solving Through Programming in C Week 7: Programming Assignments Jul-Dec 2022

     NPTEL PROGRAMMING ASSIGNMENTS

Problem Solving Through Programming in C

Week-07 Program-01

Last Day of Submission: 15-Sep-2022

Write a C program to find the sum of all elements of each row of a matrix.

--Solution-- 

  /*#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); } return 0; }

Week-07 Program-02

Last Day of Submission: 15-Sep-2022

Write a C program to find subtraction of two matrices.

--Solution-- 

  /*#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]; printf("%d ", matrix_C[i][j]); } printf("\n"); } return 0; }

Week-07 Program-03

Last Day of Submission: 15-Sep-2022

Write a C program to print lower triangle of a square matrix.

--Solution-- 

  /*#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(j>i){ matrix[i][j]=0;} printf("%d ", matrix[i][j]); } printf("\n"); } return 0; }

Week-07 Program-04

Last Day of Submission: 15-Sep-2022

Write a C program to print Largest and Smallest Word from a given sentence.

--Solution-- 

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