program C++ tanpa nama

#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int a;
cout<<"input tinggi segitiga : ";cin>>a;
cout<<endl<<endl;
for (int i=1;i<=a;i++)
{for (int j=1;j<=i;j++){
cout<<" ";}
for (int k=a+a;k>=i+(i-1);k--){
cout<<"+";}
cout<<endl;
}
//cout<<"input tinggi segitiga : ";cin>>a;
for (int l=1;l<=a;l++)
{for (int m=a;m>=l;m--){
cout<<" ";}
for (int n=1;n<=l+(l);n++){
cout<<"+";}
cout<<endl;
}
getch();
}