题解 | #图片整理#

#import <Foundation/Foundation.h>

int main(int argc, char* argv[]) {
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    char inputStr[10000];
    gets(inputStr);

    NSMutableArray* wordArray = [NSMutableArray array];
    int length = strlen(inputStr);

    for (int i = 0; i < length; i++) {
        [wordArray addObject:[NSString stringWithFormat:@"%c", inputStr[i]]];
    }

    wordArray = [wordArray sortedArrayUsingSelector:@selector(compare:)];
    for (int i = 0; i < wordArray.count; i++) {
        printf("%@", [wordArray objectAtIndex:i]);
    }

    [pool drain];
    return 0;
}