/*Copyright ElohimTov LLC*/


/*
//Name: ElohimTov Solve Code - Conditional Statements - Ojective-C Solution
//Problem: HackerRank - 30 Days of Code - Conditional Statements
//Current File: ElohimTovSolve_CondStatements.(objc).txt
//Compile-able File: ElohimTovSolve_CondStatements.objc
//Date: 05/21/2021
//Tale: ElohimTov Solve's Solution to HackerRank.com's
//	Conditional Statements problem, in Objective-C programming language.
// 	Problem link at https://elohimtov.com/elohimtov.info.
*/


//Objective-C code begins


#import <Foundation/Foundation.h>
#import <objc/Object.h>
#import <objc/objc.h>


@interface NSString (NumberFromString)
- (NSNumber *) numberFromString:(NSNumberFormatter *)formatter;
@end


@implementation NSString (NumberFromString)
- (NSNumber *) numberFromString:(NSNumberFormatter *)formatter {
    NSNumber *number = [formatter numberFromString:[self stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]];

    if (number == nil) {
        [NSException raise:@"Bad Input" format:@"%@", self];
    }

    return number;
}
@end


int main(int argc, const char* argv[]) {
    
    @autoreleasepool {
        
        NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];

        NSData *availableInputData = [[NSFileHandle fileHandleWithStandardInput] availableData];
        NSString *availableInputString = [[NSString alloc] initWithData:availableInputData encoding:NSUTF8StringEncoding];
        NSArray *availableInputArray = [availableInputString componentsSeparatedByString:@"\n"];

        NSUInteger currentInputLine = 0;

        NSNumber *N = [[[availableInputArray objectAtIndex:currentInputLine] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] numberFromString:numberFormatter];
        currentInputLine += 1;
        
        //create integer constants
        NSNumber *one = [NSNumber numberWithInt:1];
        NSNumber *two = [NSNumber numberWithInt:2];
        NSNumber *five = [NSNumber numberWithInt:5];
        NSNumber *six = [NSNumber numberWithInt:6];
        NSNumber *twenty = [NSNumber numberWithInt:20];
    
        //creat string constants
        NSString *string1 = @"Weird";
        NSString *string2 = @"Not Weird";
        //convert NSStrings to chars strings
        const char *char_string1 = [string1 UTF8String];
        const char *char_string2 = [string2 UTF8String];
    
        //check integer input and print corresponding output
        if (([N intValue] % [two intValue]) == [one intValue])
        {
            printf("%s", char_string1);
        }
        else //N is an even number
        {
            if (([two intValue]<=[N intValue]) && ([N intValue]<=[five intValue]))
                printf("%s", char_string2);
            else if (([six intValue]<=[N intValue]) && ([N intValue]<=[twenty intValue]))
                printf("%s", char_string1);
            else //N is even and greater than integer number 20
                printf("%s", char_string2);
        }//ends outer if-else statement
        
    }//ends auto release pool

    return 0;

}// ends function main


//Objective-C code ends


/*Copyright ElohimTov LLC*/