main.m

//
//  main.m
//  p91e2
//
//  Created by David Gardiner on 25/09/2012.
//  Copyright (c) 2012 David Gardiner. All rights reserved.
//

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{

    @autoreleasepool {
        int n, triangularNumber;
        
        NSLog(@"Table of triangular numbers");
        NSLog(@" N     Triangular Number");
        NSLog(@"---   -------------------");
        
        triangularNumber = 0;
        
        for ( n = 1; n <= 50; ++n)
        {

            triangularNumber += n;
            if ((n%5)==0) {              
                NSLog(@" %2i        %3i",n ,triangularNumber);
            }       
        }
    }
    return 0;
}