C Program to Insert Character/Word in Any Desired Location in a String

This C Program inserts character/word in any desired location in a string.

Here is source code of the C Program to insert character/word in any desired location in a string. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
```

 * C Program to Insert Character/Word in any Desired Location

```
 * in a String 
```
```
 */
```
```
#include <stdio.h>
```
```
#include <string.h>
```
```
 
```
```
void main()
```
```
{
```
```
    int i, j, count = 0, pos, flag = 0;
```
```
    char s1[100], s2[10], s3[100];
```
```
    char *ptr1, *ptr2, *ptr3;
```
```
 
```
```
    printf("\nenter the String:");
```
```
    scanf(" %[^\n]s", s1);
```

    printf("\nenter the string to be inserted:");

```
    scanf(" %[^\n]s", s2);
```

    printf("\nenter the position you like to insert:");

```
    scanf("%d", &pos);
```
```
 
```
```
    ptr1 = s1;
```
```
    ptr3 = s3;
```

    /*COPYING THE GIVEN STRING TO NEW ARRAY AND INSERTING THE STRING IN NEW ARRAY*/

    for (i = 0, j = 0;*ptr1 != '\0'; ptr1++, i++, j++, ptr3++)

```
    {
```
```
        s3[j] = s1[i];
```
```
        if (*ptr1 == ' ' && flag != 1)
```
```
            ++count;
```

        if (flag != 1 && count == pos - 1)

```
        {
```
```
            flag = 1;
```

            for(ptr2 = s2;*ptr2 != '\0'; ptr2++)

```
            {
```
```
                s3[++j] = *ptr2;
```
```
                ptr3++;
```
```
            }
```
```
            s3[++j] = ' ';
```
```
            ptr3++;
```
```
        }
```
```
    }
```
```
    s3[j] = '\0';
```

    printf("\nthe string after modification is\n\n %s\n", s3);

```
}
```

$ cc string10.c
$ a.out
enter the string:Welcome to Sanfoundry's C Programming Class,  Welcome Again to C Class!
enter the word to insert:Sanfoundry's
enter the position you like to insert:3
the string after modification is
 
Welcome to Sanfounsry's Sanfoundry's C Programming Class,  Welcome Again to C Class!

Sanfoundry Global Education & Learning Series – 1000 C Programs.

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