My First Commit

Tasks/Task1/RSSchool_T1/RSSchool_T1.xcodeproj/project.pbxproj

@@ -259,6 +259,11 @@
 				TargetAttributes = {
 					BDBA864A22419F4D00AFC095 = {
 						CreatedOnToolsVersion = 10.1;
+						SystemCapabilities = {
+							com.apple.BackgroundModes = {
+								enabled = 0;
+							};
+						};
 					};
 					BDBA865C22419F4E00AFC095 = {
 						CreatedOnToolsVersion = 10.1;
@@ -489,14 +494,17 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 7FWE3GPY5W;
 				INFOPLIST_FILE = RSSchool_T1/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = "RSSchool.RSSchool-T1";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -505,14 +513,17 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 7FWE3GPY5W;
 				INFOPLIST_FILE = RSSchool_T1/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = "RSSchool.RSSchool-T1";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;

Tasks/Task1/RSSchool_T1/RSSchool_T1.xcodeproj/xcuserdata/yaroslav.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "Yes"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "RSSchool_T1Tests/Encryption_Test.m"
+            timestampString = "575223578.9751641"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "8"
+            endingLineNumber = "8"
+            landmarkName = "Encryption_Test"
+            landmarkType = "3">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>

Tasks/Task1/RSSchool_T1/RSSchool_T1/Exercises/1/SummArray.m

@@ -4,7 +4,15 @@ @implementation SummArray
 
 // Complete the summArray function below.
 - (NSNumber *)summArray:(NSArray *)array {
-    return @(0);
+    int summ = 0;
+
+    for(NSNumber *numbers in array) {
+        summ += [numbers integerValue];
+    }
+
+
+
+    return @(summ);
 }
 
 @end

Tasks/Task1/RSSchool_T1/RSSchool_T1/Exercises/2/Diagonal.m

@@ -4,7 +4,27 @@ @implementation Diagonal
 
 // Complete the diagonalDifference function below.
 - (NSNumber *) diagonalDifference:(NSArray *)array {
-    return 0;
+
+    int diagonalSumOne = 0;
+    int diagonaleSumTwo = 0;
+    int diagonalPositionOne = 0;
+    int diagonalPositionTwo = [array count] - 1;
+
+
+    for(NSString *str in array) {
+        NSArray *line = [str componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
+
+        diagonalSumOne += [line[diagonalPositionOne]intValue];
+        diagonalPositionOne += 1;
+
+        diagonaleSumTwo += [line[diagonalPositionTwo] integerValue];
+        diagonalPositionTwo -= 1;
+
+
+
+    }
+
+    return @(abs(diagonalSumOne - diagonaleSumTwo));
 }
 
 @end

Tasks/Task1/RSSchool_T1/RSSchool_T1/Exercises/3/Pangrams.m

@@ -4,7 +4,15 @@ @implementation Pangrams
 
 // Complete the pangrams function below.
 - (BOOL)pangrams:(NSString *)string {
-    return NO;
+    NSArray *alphabetLetters = [@"a b c d e f g h j k l m n o p q r s t u v w x y z" componentsSeparatedByString:@" "];
+    NSString *lowerCaseString = [[NSString alloc] initWithString:[[string stringByReplacingOccurrencesOfString:@" " withString:@""] lowercaseString]];
+
+    for (NSString *str in alphabetLetters) {
+        if ([lowerCaseString rangeOfString:str].location == NSNotFound) {
+            return NO;
+        }
+    }
+    return YES;
 }
 
 @end

Tasks/Task1/RSSchool_T1/RSSchool_T1/Exercises/4/Encryption.m

@@ -4,7 +4,40 @@ @implementation Encryption
 
 // Complete the encryption function below.
 - (NSString *)encryption:(NSString *)string {
-    return @"";
+
+    double square = sqrt([string length]);
+    double sqrtValue = floor(square);
+    double ceilValue = ceil(square);
+    int rowCount = sqrtValue;
+    int columnCount = ceilValue;
+
+    if(sqrtValue * ceilValue >= [string length]) {
+        rowCount = sqrtValue;
+        columnCount = ceilValue;
+    } else {
+        rowCount = ceilValue;
+        columnCount = ceilValue;
+    }
+
+    NSMutableArray *array = [NSMutableArray array];
+
+    for(int i = 0; i < columnCount; i++) {
+        for(int k = 0; k < rowCount; k++) {
+
+            int position = i + k * columnCount;
+            if(position >= [string length]) {
+                break;
+            }
+
+            unichar item = [string characterAtIndex:position];
+            [array addObject: [NSString stringWithFormat:@"%c", item]];
+        }
+        if(i != columnCount - 1) {
+            [array addObject:@" "];
+        }
+    }
+
+    return [array componentsJoinedByString:@""];
 }
 
 @end

Tasks/Task1/RSSchool_T1/RSSchool_T1/Exercises/5/Sorted.m

@@ -8,6 +8,88 @@ @implementation Sorted
 // Complete the sorted function below.
 - (ResultObject*)sorted:(NSString*)string {
     ResultObject *value = [ResultObject new];
+    value.status = NO;
+
+    NSArray *tempArray = [string componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
+    NSMutableArray *array = [tempArray mutableCopy];
+    int arrayCount = [array count];
+
+    //get sorted array
+    NSArray* sortedArray = [array sortedArrayUsingComparator:^NSComparisonResult(id n1, id n2) {
+        NSNumber *first = [NSNumber numberWithInteger:[n1 integerValue]];
+        NSNumber *second = [NSNumber numberWithInteger:[n2 integerValue]];
+        return [first compare:second];
+    }];
+
+    if ([tempArray isEqualToArray:sortedArray]) {
+        value.status = YES;
+        return value;
+    }
+
+    for (int i = arrayCount - 1; i > 0; i--) {
+        if ([array[i] integerValue] < [array[i - 1] integerValue]) {
+            //find element to swap
+
+            int j = i - 1;
+            while (j >= 0 && [array[i] integerValue] < [array[j] integerValue]) {
+                j--;
+            }
+
+            id temp = array[i];
+            array[i] = array[j + 1];
+            array[j + 1] = temp;
+
+            if ([array isEqualToArray:sortedArray]) {
+                value.status = YES;
+                value.detail = [NSString stringWithFormat:@"swap %d %d", j+2, i+1];
+            }
+            break;
+        }
+    }
+
+    if (!(value.status)) {
+        //try to reverse
+
+        // Finding the first mismatch.
+        int front;
+        int indexFront = 1;
+        for (front = 0; front < arrayCount; front++)
+        {
+            if ([sortedArray[front] integerValue]!= [tempArray[front] integerValue])
+            {
+                //front contains first mistmatch index
+                indexFront += front;
+                break;
+            }
+        }
+
+        // Finding the last mismatch.
+        int back;
+        int indexBack = 1;
+        for (back = arrayCount - 1; back >= 0; back--)
+        {
+            if ([sortedArray[back] integerValue] != [tempArray[back] integerValue])
+            {
+                //back contains last mismatch
+                indexBack += back;
+                break;
+            }
+        }
+
+        // Check if subarray is decreasing
+        do
+        {
+            front++;
+            if ([tempArray[front - 1] integerValue] < [tempArray[front] integerValue])
+            {
+                return value;
+            }
+        } while (front != back);
+
+        value.status = YES;
+        value.detail = [NSString stringWithFormat:@"reverse %d %d", indexFront, indexBack];
+        return value;
+    }
     return value;
 }