https://www.chegg.com/homework-help/questions-and-answers/hi-im-trying-build-c-program-change-string-he2lo-hello--example-needs-able-achieve-result--q29646864

Could some one please please give me an in depth line by line explanation of whats happening in the above solution, especially this part====> (str[i]-'0'); i'm having real trouble understanding this.

This is the code:

#include(3tdio.h> #include # include int main () char str [100],rep // ask user to enter string printf ("enter string:") scanf ("%s", str) ; int i,j,num; // now logic is simple traverse // given string and if we find any digit then // print next character by number of digit times for (lr) ; 3tr [1] '-'\0' ;1++) // check if current char is digit or not, means lies between 1 ascii value 49) to 9 num=0 ; // if there more consecutive digits that means they are forming a number so for a number first while(str[1]>-49 && 3tr[1]0) repstr[i] for (jr);jcnum ; j ++) printf ("SC",rep) continue // if not a digit then simply print current char on screen printf ("%c" , 3tr [1] ) ; printf ("n") return 0