/*Copyright ElohimTov LLC*/


/*
//Name: ElohimTov Solve Code - Data Types - Objective-C Solution
//Problem: HackerRank - 30 Days of Code - Data Types
//Current File: ElohimTovSolve_DataTypes.(objc).txt
//Compile-able File: ElohimTovSolve_DataTypes.objc
//Dates: (Created 02/20/2021); 05/17/2021; 12/31/2021.
//Tale: ElohimTov Solve's Solution to HackerRank.com's
//	Data Types problem in Objective-C programming language.
// 	Problem link at https://elohimtov.com/elohimtov.info.
*/

/****NOTE: TutorialsPoint.com Coding Ground was used to Code,
Write, Modify, Execute, Test and Solve this Objective-C problem.
https://www.tutorialspoint.com/compile_objective-c_online.php****/


//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];

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

    return number;
}
@end


int main(int argc, const char* argv[])
{
    	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
        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;
                
        //do the integer addition and print answer
        NSNumber *i = [NSNumber numberWithInt:4];
        NSNumber *integer_input = [[availableInputArray objectAtIndex:currentInputLine] numberFromString:numberFormatter];
        currentInputLine += 1;
        int integer_answer = [i intValue] + [integer_input intValue];
        
        //do the double addition and print result
        NSNumber *d = [NSNumber numberWithDouble:4.0];
        NSNumber *double_input = [[availableInputArray objectAtIndex:currentInputLine] numberFromString:numberFormatter];
        currentInputLine += 1;
        double double_answer = [d doubleValue] + [double_input doubleValue];
        
        //do the string concatenation and print final string.
        //create and initiate NSStrings
        NSString *str = @"HackerRank ";
        NSString *str0 = [availableInputArray objectAtIndex:currentInputLine];
        
        //convert NSStrings to chars strings
        const char *char_str = [str UTF8String];
        const char *char_str0 = [str0 UTF8String];
        currentInputLine += 1;

	//print integer summation answer
        printf("%i\n", integer_answer);

	//print double summation answer
        printf("%.1f\n", double_answer);

        //print char Strings simultaneously below using printf
        printf("%s%s", char_str, char_str0);

    	[pool drain];
    	return 0;
}//ends main


//Objective-C code ends


/*Copyright ElohimTov LLC*/