C :

#include<stdio.h>
int main()
{
    int n,i,j;
    scanf("%d",&n);
    for(i=0;i<n;i++)
    {
       for(j=i;j<n;j++)
            printf("*");
       printf("\n");
    }
    return 0;
}

C++ :

#include<iostream>
using namespace std;
int main()
{
    int n;
    cin >>n;

    for (int i=0; i<n; i++)
    {
        for (int j=0; j<n-i; j++)
        {
            cout <<'*';
        }
        cout <<endl;
    }
    return 0;
}

Pascal :

var
 i,j,k,x,s:longint;
begin
 read(x);
 for i:=x downto 1 do
 begin
 for k:=i downto 1 do
   write('* ');
  writeln;
 end;
end.