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Code: Select all

Enter the text:Hello how r u?
Enter new word to add: fat
Enter position of insertion:10
Hello how fat r u?

Code: Select all

#include<stdio.h>
#include<conio.h>
void main()
{
 int i,j,k,l,a,x,z,p;
 char text[100],ntext[100],atext[100],rtext[100];
 clrscr();
for(i=0;i<=100;i++); //clearing up arrays
 {
   text[100]='\0';
  ntext[100]='\0';
  atext[100]='\0';
  rtext[100]='\0';
 }
 printf("\Enter the text:");//getting the main sentence
 for(i=0;((text[i]=getchar())!='\n');i++);
 z=i;
  printf("Enter the new word to add:");//getting word 4 insertion
  for(j=0;((ntext[j]=getchar())!='\n');j++);
  x=i+j+1;
   printf("Enter position of insertion:");//get location
   scanf("%d",&a);
    /* PROCESSING*/
   p=a-1;
for(l=0;l<=p;l++) //sending the part before 'a' into another array
 atext[l]=text[l];
for(i=0;i<=j;i++,l++)//adding insertion word
 atext[l-1]=ntext[i];
i=a-1;
for(k=0;k<=z-p;k++,i++)//storing the part after 'a'
 rtext[k]=text[i];
for(i=0;i<=z;i++,l++)//adding the left over
 atext[l-1]=rtext[i];
for(i=0;i<=x;i++)//printing the new array
 printf("%c",atext[i]);
getch();//used 4 execution convienence
}

Code: Select all

#include<stdio.h>
#include<conio.h>
void main()
{
 int i,j,in,a,x,y,z,l,nt;
 char orginaltext[100],inserttext[100],newtext[100];
 clrscr();
???       /*CLEARING ARRAYS*/
for(i=0;i<=100;i++);
 {
  orginaltext[100]='\0';
   inserttext[100]='\0';
      newtext[100]='\0';
 }
???       /*GETS ORGINAL_TEXT*/
 printf("\Enter the text:");
 for(i=0;((orginaltext[i]=getchar())!='\n');i++);
???       /*TEXT TO INSERT*/
 printf("Enter the new word to add:");
 for(j=0;((inserttext[j]=getchar())!='\n');j++);
 a=i+j;
???       /*GETS POSITION*/
   printf("Enter position of insertion:");
   scanf("%d",&in);
???       /* PROCESSING*/
???       /*COPY FIRST PART*/
 for(x=0;x<=in-1;x++)
  newtext[x]=orginaltext[x];
???       /*INSERT WORD*/
 l=x+1;
 for(y=l,x=0;y<=l+j-1;y++,x++)
  newtext[y]=inserttext[x];
???       /*PASTE THE LEFTOVERS*/
 l=y+1;
 for(z=l,x=in;z<=l+(i-in);z++,x++)
  newtext[z]=orginaltext[x];
???       /*PRINT NEW ARRAY (character by charcter*/
       for(nt=0;nt<=a+2;nt++)
  printf("%c",newtext[nt]);
getch();
}

Code: Select all

#include<stdio.h>
#include<conio.h>

void main()
{
    int i,j,in,a,x,y,z,l,nt;
    char orginaltext[100], inserttext[100], newtext[100];
    
    clrscr();
     
    /*CLEARING ARRAYS*/
    for(i=0;i<=100;i++);
    {
        orginaltext[100]='\0';
        inserttext[100]='\0';
        newtext[100]='\0';
    }

    /*GETS ORGINAL_TEXT*/
    printf("\Enter the text:");
    for(i=0;((orginaltext[i]=getchar())!='\n');i++);
    
    /*TEXT TO INSERT*/
    printf("Enter the new word to add:");
    for(j=0;((inserttext[j]=getchar())!='\n');j++);
    
    a=i+j;

    /*GETS POSITION*/
    printf("Enter position of insertion:");
    scanf("%d",&in);

    /* PROCESSING*/
    /*COPY FIRST PART*/
    for(x=0;x<=in-1;x++)
        newtext[x]=orginaltext[x];

    /*INSERT WORD*/
    l=x+1;
    for(y=l,x=0;y<=l+j-1;y++,x++)
        newtext[y]=inserttext[x];
        
    /*PASTE THE LEFTOVERS*/
    l=y+1;
    for(z=l,x=in;z<=l+(i-in);z++,x++)
        newtext[z]=orginaltext[x];

    /*PRINT NEW ARRAY (character by charcter*/
    for(nt=0;nt<=a+2;nt++)
        printf("%c",newtext[nt]);
        
    getch();
}

Code: Select all

    for(i=0;i<=100;i++);
    {
        orginaltext[100]='\0'; 
                    ^^^
        inserttext[100]='\0';
                    ^^^              
        newtext[100]='\0';
                 ^^^    
    }

Code: Select all

char* clear_buffer(char buf[], int size)
{
    int i;

    for (i = 0; size > i; i++)
        buf[i] = '\00';

    return buf;
}

Code: Select all

for(i=0;i<=100;i++); // i=101;
    {
        orginaltext[100]='\0';
                    ^^^
        inserttext[100]='\0';
                    ^^^             
        newtext[100]='\0';
                ^^^   
    }