Delete the substring of length n from the string at specified position (pos)

Delete the substring of length n from the string at specified position (pos)

#include<stdio.h>

#include<string.h>

void main()

{

          char str[20], substr[20];

          int n, pos, i, m;

          printf("\nEnter the string:");

          gets(str);

          printf("\nEnter the position:");

          scanf("%d", &pos);

          printf("\nEnter the number of characters to be deleted:");

          scanf("%d", &n);

          m = strlen(str);

          for(i=pos;i<m-n;i++)

          { 

              str[i] = str[i+n];

          }

          str[i] ='\0';

          printf("\nThe substring is:");

          puts(str);

}

Output:

Enter the string:         abcdefghijkl

Enter the position:     3

Enter the number of characters to be deleted:  5

The substring is:     abcijkl