This C++ program uses functions like gotoxy() and SetConsoleCursorPosition() to position text output on the console screen. It takes a user input number, calculates the sum from 1 to that number, and displays the output. It also includes a commented out section that would prompt for a C++ score, validate it is below 100, and re-prompt if invalid.

1. #include <iostream>
#include <windows.h>
#include <string>
#include <conio.h>
using namespace std;
COORD coordinate={0,0};//intialization
string name="";
void gotoxy (int x, int y){//Acyuoment,void=Returntype,gotoxy=fountionname
coordinate.Y=y;
coordinate.X=x;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),coordinate);
}
int main()
{
int total=0,n;
cout<<"Please Input Numbern ";
cin>>n;
for(int a=1;a<=n;a++){
cout<<a<< " + ";
total+=a;
}
cout<<"bb = "<<total;
/*
gocpp:
int cpp;
gotoxy(1,1);
cout<<"Please Input C++ = ";
gotoxy(20,1);
cin>>cpp;
if(cpp>100){
gotoxy(20,1);
cout<<"Invalid Number";
getch();
gotoxy(1,1);
cout<<"
";
goto gocpp;
}
*/
}
return 0;