View difference between Paste ID: qYAYxxPH and GPZC2MwW

 /*   Writing own version of the "   strcpy( )   "  library function which is named mystrcpy( )   */
 #include<stdio.h>
 #include<string.h>
 void mystrcpy(char str2[],char str1[]);
 int main(void)
 {
     char s1[999999];
     char s2[999999];
     gets(s1);
     gets(s2);
     mystrcpy(s2,s1);
     return 0;
 }
 void mystrcpy(char str2[],char str1[])
 {
     int i,j=0;
     int x=strlen(str1);
     for(i=x;str2[j]!='\0';i++)
     {
             str1[i]=str2[j];
             j++;
     }
     str2[i]='\0';
     puts(str1);
 }