Sha256: 9a0544b8ce7f6bb781bf3d6b8b19aa8d3ea619358b0b1e8dc26c4fe7904ad674
Contents?: true
Size: 1.58 KB
Versions: 366
Compression:
Stored size: 1.58 KB
Contents
#import "TransposeExample.h"
@implementation Transpose
+ (NSArray<NSString *> *)transpose:(NSArray<NSString *> *)input {
int maxLength = 0;
for (NSString *line in input) {
if (line.length > maxLength) {
maxLength = (int)line.length;
}
}
NSMutableArray<NSString *> *result = [NSMutableArray arrayWithCapacity:maxLength];
for (int i = 0; i < maxLength; i++) {
[result addObject:@""];
for (NSString *line in input) {
NSString *character;
if (i < line.length) {
character = [line substringWithRange:NSMakeRange(i, 1)];
} else {
character = @" ";
}
result[i] = [result[i] stringByAppendingString:character];
}
}
NSMutableArray<NSString *> *trimmedResult = [[NSMutableArray alloc] init];
for (NSString *line in result) {
[trimmedResult addObject:[self stringByTrimmingTrailingWhiteSpace:line]];
}
return trimmedResult;
}
+ (NSString *)stringByTrimmingTrailingWhiteSpace:(NSString *)string {
NSUInteger location = 0;
NSUInteger length = [string length];
unichar charBuffer[length];
[string getCharacters:charBuffer];
NSCharacterSet *characterSet = [NSCharacterSet whitespaceCharacterSet];
while (length > 0) {
if (![characterSet characterIsMember:charBuffer[length - 1]]) {
break;
}
length--;
}
return [string substringWithRange:NSMakeRange(location, length - location)];
}
@end
Version data entries
366 entries across 366 versions & 1 rubygems