Code Golf: Print the entire “12 Days of Christmas” song in the fewest lines of code

Answer 1

Objective-C / Cocoa

NSArray *days = [NSArray arrayWithObjects:@"first", @"second", @"third", @"forth", 
                    @"fifth", @"six", @"seventh", @"eigth", 
                    @"ninth", @"tenth", @"eleventh", @"twelth", nil];

NSArray *gifts = [NSArray arrayWithObjects:
                    @"a partridge in a pear tree.\n\n",
                    @"two turtle doves, and\n",
                    @"three french hens,\n",
                    @"four calling birds,\n",                      
                    @"five gold rings,\n",
                    @"six geese a-laying,\n",
                    @"seven swans a-swimming,\n",
                    @"eigth maids a-milking,\n",                     
                    @"nine ladies dancing,\n",
                    @"ten lords a-leaping,\n",
                    @"eleven pipers piping,\n",    
                    @"twelve drummers drumming,\n",
                    nil];

NSMutableString *aggregator = [NSMutableString string];
for(int i = 0; i < 12; i++) {
    [aggregator insertString:[gifts objectAtIndex:i] atIndex:0];
    printf("on the %s day of xmas, my true love gave to me %s", [[days objectAtIndex:i] UTF8String], [aggregator UTF8String]);
}