Sha256: ab6bca07e65ec72e66f7a5984dcde9fc8b525ff15a1959b638464f0e64ad002c
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Size: 1.28 KB
Versions: 67
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Stored size: 1.28 KB
Contents
#import "SeriesExample.h"
@interface Series()
@property (nonatomic, strong) NSString *numberString;
@end
@implementation Series
- (instancetype)initWithNumberString:(NSString *)numberString {
if (self = [super init]) {
self.numberString = numberString;
}
return self;
}
- (nullable NSArray<NSArray<NSNumber *> *> *)slicesWithSize:(NSInteger)size {
NSUInteger length = [self.numberString length];
if (length < size) {
return nil;
}
NSMutableArray<NSNumber *> *numberArray = [NSMutableArray arrayWithCapacity:length];
for (NSUInteger i = 0; i < length; i++) {
unichar digit = [self.numberString characterAtIndex:i] - '0';
if (digit < 0 || digit > 10) {
// Invalid character
return nil;
}
[numberArray addObject:[NSNumber numberWithUnsignedShort:digit]];
}
NSInteger numberOfSlices = length - size + 1;
NSMutableArray<NSArray<NSNumber *> *> *result = [NSMutableArray arrayWithCapacity:numberOfSlices];
for (NSUInteger start = 0; start < numberOfSlices; start++) {
NSRange range = NSMakeRange(start, size);
NSArray *slice = [numberArray subarrayWithRange:range];
[result addObject:slice];
}
return result;
}
@end
Version data entries
67 entries across 67 versions & 1 rubygems