More Questions

1. More Questions • 1) Write a C program to read a matrix A of size nXn and two arrays X and Y of size n and calculate XA-Y? • popo

2. More Questions • #include<conio.h> • #include<stdio.h> • void main() • { • int a[10][10],x[10],y[10],i,j,r,c,R[10][10],k; • clrscr(); • printf("enter order of the mat :- "); • scanf("%d%d",&r,&c); • if(r==c) • { • printf("enter matrix"); • for(i=0;i<r;i++) • { • for(j=0;j<c;j++) • { • scanf("%d",&a[i][j]); • } • } • popo

3. More Questions • printf("given matrix\n"); • for(i=0;i<r;i++) • { • for(j=0;j<c;j++) • { • printf("%d ",a[i][j]); • } • printf("\n"); • } • printf("Enter first array :- "); • for(i=0;i<r;i++) • { • scanf("%d",&x[i]); • } • printf("Enter second array :- "); • for(i=0;i<r;i++) • { • scanf("%d",&y[i]); • } • popo

4. More Questions • //calculating X*A • for(i=0;i<1;i++) • { • for(j=0;j<c;j++) • { • R[i][j]=0; • for(k=0;k<r;k++) • { • R[i][j]=R[i][j]+x[k]*a[k][j]; • } • } • } • //calculation of X*A - Y • for(i=0;i<1;i++) • { • for(j=0;j<c;j++) • { • R[i][j]=R[i][j]-y[j]; • } • } • popo

5. More Questions • printf(“\nresultant matrix “); • for(i=0;i<1;i++) • { • for(j=0;j<c;j++) • { • printf("%d ",R[i][j]); • } • printf("\n"); • } • } • else • {printf(“Not a square matrix”);} • getch(); • } • popo

6. More Questions • 2) Write a function that receives a sorted array of integers and an integer value and insert the integer value in its correct place in the sorted array • popo

7. More Questions • #include<conio.h> • #include<stdio.h> • void main() • { • void array(int [],int,int ); • int a[10],i,j,t,n,no; • clrscr(); • printf("Enter limit "); • scanf("%d",&n); • for(i=0;i<n;i++) • { • scanf("%d",&a[i]); • } • printf("given array :- "); • for(i=0;i<n;i++) • { • printf("%d ",a[i]); • } • popo

8. More Questions • //sorting • for(i=0;i<n;i++) • { • for(j=i+1;j<n;j++) • { • if(a[i]>a[j]) • { • t=a[i]; • a[i]=a[j]; • a[j]=t; • } • } • } • printf("\nsorted array "); • for(i=0;i<n;i++) • { • printf("%d ",a[i]); • } • printf("\nEnter a no to insert"); • scanf("%d",&no); • //passing sorted array to function • array(a,n,no); • getch(); • } • popo

9. More Questions • void array(int a[10],intn,int no) • { • inti,pos=0; • //finding the position to insert • for(i=0;i<n;i++) • { • if(no>=a[i]) • { • pos=i; • } • } • pos=pos+1; • popo

10. More Questions • //inserting • for(i=n;i>pos;i--) • { • a[i]=a[i-1]; • } • a[pos]=no; • printf("\nnew inserted array "); • for(i=0;i<=n;i++) • { • printf("%d ",a[i]); • } • } • popo

11. More Questions • 3) Write a C program to read an array of size n and calculate its standard deviation given by • √∑(xi-x)2/n • popo

12. More Questions • #include<conio.h> • #include<math.h> • #include<stdio.h> • void main() • { • int a[10],i,n,x,s=0; float sd; • clrscr(); printf("enter limit "); • scanf("%d",&n); • printf("Enter array "); • for(i=0;i<n;i++) • { • scanf("%d",&a[i]); • } • printf("given array :- "); • for(i=0;i<n;i++) • { • printf("%d ",a[i]); • s=s+a[i]; • } • x=s/n; s=0; • for(i=0;i<n;i++) • { • s=s+pow((a[i]-x),2); • } • sd=sqrt(s/n); • printf("\nSD=%f",sd); • getch(); • } • popo

13. More Questions • 4) Write a C program to read a data stored in a file. Find the value of • ∑(xi2/n) –∑(xi/n)2 and write it in another file • popo

14. More Questions • #include<conio.h> • #include<math.h> • #include<stdio.h> • void main() • { • int a[10],i,n,no,s=0,k=0; • float z; • FILE *fp,*fp2; • clrscr(); • fp=fopen("num.txt","w"); • printf("Enter limit "); • scanf("%d",&n); • for(i=1;i<=n;i++) • { • printf("enter a no "); • scanf("%d",&no); • putw(no,fp); • } • fclose(fp); • popo

15. More Questions • fp=fopen("num.txt","r"); • for(i=0;i<n;i++) • { • a[i]=getw(fp); • } • fclose(fp); • printf("content of the array "); • for(i=0;i<n;i++) • { • printf("%d ",a[i]); • s=s+pow(a[i],2); • k=k+a[i]; • } • z=(s/n)-pow((k/n),2); • printf("\nresult= %f",z); • fp2=fopen("second.txt","w"); • fprintf(fp2,"%f",z); • fclose(fp2); • getch(); • } • popo

16. Find biggest word in the given sentences

17. Find biggest word in the given sentences • #include<conio.h> • #include<string.h> • #include<stdio.h> • main() • { • inti=0,ss=0,big=0; • char s[100],c,temp[50],bigstr[50]; • clrscr(); • printf("enter a text "); • gets(s); • printf("GIven string : %s\n",s);

18. Find biggest word in the given sentences • for(i=0;s[i]!='\0';i++) • { • if(s[i]==' ') • { • temp[ss]='\0'; • //printf(" %s %d\n",temp,ss); • if(ss>big) • { • big=ss; • strcpy(bigstr,temp); • } • ss=0; • } • else • { • temp[ss]=s[i]; • ss++; • //printf("%c",s[i]); • } • }

19. Find biggest word in the given sentences • temp[ss]='\0'; • //printf("%s %d",temp,ss); • if(ss>big) • { • big=ss; • strcpy(bigstr,temp); • } • printf("\n Big string %s",bigstr); • printf("\n Biggest string length %d",big); • getch(); • }

20. Search the given sub string pattern in the main string

21. More Questions • #include<conio.h> • #include<string.h> • #include<stdio.h> • void main() • { • char str[20],sub[20],temp[20][20]; • inti,j,n=0,k,l,f=1; • clrscr(); • printf("enter main string"); • gets(str); • printf("sub string "); • gets(sub); • for(i=0;str[i]!='\0';i++) • { • l=i;k=0; • for(j=0;sub[j]!='\0';j++) • { • temp[n][k]=str[l]; • k++;l++; • } • temp[n][k]='\0'; • n++; • } • popo

22. More Questions • for(i=0;i<strlen(str)-strlen(sub)+1;i++) • { • //printf("\n%s",temp[i]); • if(strcmp(temp[i],sub)==0) • { • printf("\npattern found"); • f=0; • } • } • if(f==1) • { • printf("\npattern not found"); • } • getch(); • } • popo