First Commit

CaesarCipher/CaesarCipher/main.m

@@ -8,11 +8,22 @@
 
 #import <Foundation/Foundation.h>
 
+//Being amateur codebreakers, we want to know if two distinct looking ciphers correspond to the same input message. Write a method called codeBreaker, which accepts two cipher strings as paramaters and returns a boolean value which tells us whether they are actually the same input message encoded using two different offsets. hint: the maximum offset is 25
+
+//Example:
+//okmg = "mike", offset 2
+//tprl = "mike", offset 7
+//
+//Both are the same input message, but different offset. Your method would return YES in this case
+
 @interface CaesarCipher : NSObject
 
+
 - (NSString *)encode:(NSString *)string offset:(int)offset;
 - (NSString *)decode:(NSString *)string offset:(int)offset;
 
+-(BOOL)codeBreaker: (NSString *)string with:(NSString *)otherString;
+
 @end
 
 
@@ -50,11 +61,68 @@ - (NSString *)decode:(NSString *)string offset:(int)offset {
     return [self encode:string offset: (26 - offset)];
 }
 
+
+-(BOOL)codeBreaker: (NSString *)string with:(NSString *)otherString {
+
+    for (int i = 1; i < 26; i++) {
+
+        NSString *decodedString = [self decode: string offset: i];
+        //NSLog(@"string:%@, offset:%d", decodedString, i);
+
+        for (int j = 1; j < 26; j++) {
+
+            NSString *decodedOtherString = [self decode: otherString offset: j];
+            //NSLog(@"string:%@, offset:%d", decodedOtherString, j);
+
+            if ([decodedString isEqualToString: decodedOtherString]){
+                NSLog(@"Same input.");
+                return 1;
+            }
+        }
+    }
+    NSLog(@"Input does not match.");
+    return 0;
+}
+
 @end
 
 
 int main(int argc, const char * argv[]) {
     @autoreleasepool {
 
+
+        CaesarCipher *cipher = [[CaesarCipher alloc] init];
+
+
+        //encoding examples
+
+        NSString *example1 = [cipher encode:@"mike" offset: 2];
+        NSLog(@"%@", example1);
+
+        NSString *example2 = [cipher encode:@"mike" offset: 7];
+        NSLog(@"%@", example2);
+
+        NSString *example3 = [cipher encode:@"seat" offset: 7];
+        NSLog(@"%@", example3);
+
+        //decoding examples
+
+        NSString *decodedExample1 = [cipher decode:@"okmg" offset: 2];
+        NSLog(@"%@", decodedExample1);
+
+        NSString *decodedExample2 = [cipher decode: @"tprl" offset:7];
+        NSLog(@"%@",decodedExample2);
+
+        NSString *decodedExample3 = [cipher decode:@"zlha" offset: 7];
+        NSLog(@"%@", decodedExample3);
+
+
+        [cipher codeBreaker:@"okmg" with:@"tprl"];
+
+        [cipher codeBreaker:@"tprl" with:@"zlha"];
+
+
+
     }
+
 }

Election/Election/main.m

@@ -8,11 +8,40 @@
 
 #import <Foundation/Foundation.h>
 
+//You are given 3 classes:
+//
+//Election Manager
+//-Conducts an election.
+//-Controls start of voting
+//
+//Election
+//-Maintains a list of contenders
+//
+//Contender
+//-Represents details about a contender
+//--What is the contender's name?
+//--How many votes has he received?
+//
+//Write a program to simulate an election. Create a class called VotingSimulator. In the main , you are required to do the following:
+//
+//1. Create an Election object, and given the Election a name
+//2. Create a few Contender objects. Add these to the Election object. Make sure that the contender names are distinct!
+//3. Create a ElectionManager object. Ask it to manage the Election object created above.
+//4. Ask the ElectionManager to initiatePolling
+//5. Follow the instructions on the console. After each round of polling you will be asked(within the console) whether you want to continue or not.
+//6. Ask the ElectionManager to displayResults
+
+
 // forward declarations
 @class Contender;
 @class Election;
+@class VotingSimulator;
+
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 
 // Contender class
+
 @interface Contender : NSObject
 
 - (instancetype)initWithName:(NSString *)name;
@@ -23,6 +52,8 @@ - (NSString *)name;
 
 @end
 
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
 @implementation Contender {
     NSInteger _votesReceived;
     NSString *_name;
@@ -55,6 +86,10 @@ - (NSString *)description {
 
 @end
 
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+// Election class
 
 @interface Election : NSObject
 
@@ -71,8 +106,8 @@ - (void)displayResults;
 
 @end
 
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 
-// Election class
 @implementation Election {
     NSString *_electionName;
     NSMutableArray *_listOfContenders;
@@ -151,6 +186,9 @@ - (void)vote {
 
 @end
 
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
 
 // ElectionManager class
 @interface ElectionManager : NSObject
@@ -162,6 +200,8 @@ - (BOOL)pollsOpen;
 
 @end
 
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
 @implementation ElectionManager {
     NSMutableArray *_races;
 }
@@ -201,11 +241,69 @@ - (BOOL)pollsOpen {
 
 @end
 
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+//Voting Simulator Class
+
+@interface VotingSimulator : NSObject
+
+-(void)simulation: (Election *)e with: (ElectionManager *)eMgr ;
+
+@end
+
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+@implementation VotingSimulator
+
+-(void)simulation: (Election *)e with: (ElectionManager *)eMgr {
+    [eMgr manage:e];
+    [e displayCandidates];
+    [eMgr initiatePolling];
+    [eMgr displayResults];
+}
+
+@end
+
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 
 
 int main(int argc, const char * argv[]) {
     @autoreleasepool {
 
+        Election *bestArtist2016 = [[Election alloc] init];
+        [bestArtist2016 initWithElectionName:@"Best Artist 2016"];
+
+        ElectionManager *justine = [[ElectionManager alloc] init];
+
+        Contender *cindySherman = [[Contender alloc] init];
+        Contender *nanGoldin = [[Contender alloc] init];
+        Contender *vanessaBeecroft = [[Contender alloc] init];
+
+        [cindySherman initWithName:@"Cindy Sherman"];
+        [nanGoldin initWithName:@"Nan Goldin"];
+        [vanessaBeecroft initWithName:@"Vanessa Beecroft"];
+
+        [bestArtist2016 addContender:cindySherman];
+        [bestArtist2016 addContender:nanGoldin];
+        [bestArtist2016 addContender:vanessaBeecroft];
+
+//        [bestArtist2016 displayCandidates];
+//        
+//        [justine manage:bestArtist2016];
+//        
+//        [justine initiatePolling];
+//        
+//        [justine displayResults];
+
+        //Replaced the commented-out messages above with the voting simulator instance below:
+
+        VotingSimulator *test = [[VotingSimulator alloc] init];
+
+        [test simulation:bestArtist2016 with:justine];
+
     }
     return 0;
 }

Person/Person/main.m

@@ -8,6 +8,10 @@
 
 #import <Foundation/Foundation.h>
 
+//Write a method called checkSameCity which accepts one parameter of type Person * and checks if they live in the same city. The method should return a boolean value.
+//A Person has recently had a child, whose name is 'Abc'. Write a method called registerChild which takes 0 parameters and returns a new Person * instance represeting the child, which has the same phoneNumber and city as the parent.
+
+
 @interface Person: NSObject
 
 - (void)setName:(NSString *)name;
@@ -19,6 +23,10 @@ - (NSString *)city;
 - (void)setPhoneNumber:(NSString *)phoneNumber;
 - (NSString *)phoneNumber;
 
+- (BOOL)checkSameCity:(NSString *)city;
+
+- (Person *) haveChild;
+
 @end
 
 @implementation Person {
@@ -51,13 +59,55 @@ - (NSString *)phoneNumber {
     return _phoneNumber;
 }
 
-@end
+- (BOOL)checkSameCity:(NSString *)city {
+    if ([_city isEqualToString:city]){
+        NSLog(@"Yes");
+        return YES;
+    }else {
+        NSLog(@"No");
+        return NO;
+    }
+}
+
+- (Person *) haveChild {
+    Person *child = [[Person alloc] init];
+    [child setCity:[self city]];
+    [child setPhoneNumber:[self phoneNumber]];
+    return child;
+}
 
 
+@end
+//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
 int main(int argc, const char * argv[]) {
     @autoreleasepool {
-        // insert code here...
-        NSLog(@"Hello, World!");
+
+        Person *julia = [[Person alloc]init];
+
+        [julia setName:@"Julia"];
+        [julia setCity:@"Cheyenne"];
+        [julia setPhoneNumber:@"617-890-4563"];
+
+        NSLog(@"%@ lives in %@. Her phone number is %@.", [julia name], [julia city], [julia phoneNumber]);
+
+        Person *igor = [[Person alloc]init];
+
+        [igor setName:@"Igor"];
+        [igor setCity:@"Brooklyn"];
+        [igor setPhoneNumber:@"347-517-2345"];
+
+        NSLog(@"%@ lives in %@. His phone number is %@.", [igor name], [igor city], [igor phoneNumber]);
+
+        NSLog(@"Do %@ and %@ live in the same city?", [julia name], [igor name]);
+        [julia checkSameCity:[igor city]];
+
+        Person *juliasChild = [julia haveChild];
+        [juliasChild setName: @"ABC"];
+
+        NSLog(@"%@ just had a child and named it %@. Can you believe that??", [julia name], [juliasChild name]);
+
+
     }
     return 0;
 }

README.md

@@ -44,3 +44,5 @@ Write a program to simulate an election. Create a class called **VotingSimulator
 4. Ask the ElectionManager to ***initiatePolling***
 5. Follow the instructions on the console. After each round of polling you will be asked(within the console) whether you want to continue or not.
 6. Ask the ElectionManager to ***displayResults***
+
+