PLEASE , Write in C++

Write a function named replaceSubstring. The function should accept three string object arguments. Let's call them stringl. string2, and string3. It should search string1 for all occurrences of string2. When it finds an occurrence of string2, it should replace it with string3. For example String2 String3: the dog jumped over the fence" "the" that With these three arguments, the function should return a string object with the value that dog jumped over that fence