Shifting of elements

#1

in the que replace all pi ,when we get a[i]==‘p’ and a[i+1]==‘i’ now i don’t know how to shift elements so we place the the value 3.14 , so just tell me the shifting process by using variable j

#2 
  if(arr[i]=='p' && arr[i+1]=='i'){
        // to place 3.14 you need 4 spaces
        // 2 are already present(p,i) 2 more you have to create
        // first move till end
        int j=i+2;// ith and i+1 th are p and i
        while(arr[j]!='\0'){
            j++;
        }
        // now go backward till i+2 and shift all charcter one by one
        j+=2;
        arr[j]='\0';
        j--;
        while(j!=i+2){
            arr[j]=arr[j-2];
            j--;
        }
        arr[i]='3';
        arr[i+1]='.';
        arr[i+2]='1';
        arr[i+3]='4';
        Replacepi(arr,i+4);
   }

Reference Code

i hope this helps
if yes hit a like and don’t forgot to mark doubt as resolved
if you have more doubts regarding this feel free to ask

#3

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