#include <iostream>
using namespace std;
int main(){
    cout<<"Hello World!";
    return 0;
}

Installing allegro seems confusing to me this is my first time using it in dev c++, I update my dev c++ using the update package manager and got allegro library and now the whole dev c++ is in chaos whatever code I use it gives me an ID returned 1 exit status even with this simple code above someone help

If you used Dev-C++ install Pak for Allegro, When you start a New project you should Have 2 Allegro Templates in the Multimedia Tab. Do Not use those templates for the code you are typing in above.

Simply Create a Console Application and Give it another try

Which version of Dev-C++ are you using? If it's the original Bloodshed Dev-C++ there are good reasons why you shouldn't use Dev-C++.

If however it's the more up-to-date Orwell Dev-C++ you should be fine to proceed however, as covered in this post on updated versions of Dev-C++.

Did Poigahn's tip help you out at all, or do you still need more help?