Sha256: 2d2dfed6890f7aa7af8a28915a06bec238fe524a3daf78fdc00a80dd370caf9a
Contents?: true
Size: 1.72 KB
Versions: 396
Compression:
Stored size: 1.72 KB
Contents
#import <Foundation/Foundation.h>
#import "AllYourBaseExample.h"
@implementation AllYourBase
+ (NSArray<NSNumber *> *)outputDigitsForInputBase:(int)inputBase inputDigits:(NSArray<NSNumber *> *)inputDigits outputBase:(int)outputBase {
if (inputBase < 2) {
@throw [NSException exceptionWithName:@"Invalid input base" reason:@"Less than 2" userInfo:nil];
}
if (outputBase < 2) {
@throw [NSException exceptionWithName:@"Invalid output base" reason:@"Less than 2" userInfo:nil];
}
int sum = [self getSumForDigits:inputDigits andBase:inputBase];
return [self getDigitsForSum:sum andBase:outputBase];
}
+ (int)getSumForDigits:(NSArray<NSNumber *> *)digits andBase:(int)base {
int multiplier = 1;
int sum = 0;
for (NSNumber *digit in [[digits reverseObjectEnumerator] allObjects]) {
int digitValue = [digit intValue];
if (digitValue < 0) {
@throw [NSException exceptionWithName:@"Invalid digit" reason:@"Negative value" userInfo:nil];
}
if (digitValue >= base) {
@throw [NSException exceptionWithName:@"Invalid digit" reason:@"Too high for base" userInfo:nil];
}
sum += digitValue * multiplier;
multiplier *= base;
}
return sum;
}
+ (NSArray<NSNumber *> *)getDigitsForSum:(int)sum andBase:(int)base {
NSMutableArray<NSNumber *> *digits = [[NSMutableArray alloc] init];
int multiplier = 1;
while (sum > 0) {
multiplier *= base;
int value = sum % multiplier;
int digit = value / (multiplier / base);
[digits addObject:@(digit)];
sum -= value;
}
return [[digits reverseObjectEnumerator] allObjects];
}
@end
Version data entries
396 entries across 396 versions & 1 rubygems