//
//  Sort.h
//

#import 

@interface Sort : NSObject{

}

//选择排序
-(void)selectSortWithArray:(NSArray *)aData;
//插入排序
-(void)insertSortWithArray:(NSArray *)aData;
//快速排序
-(void)quickSortWithArray:(NSArray *)aData;

-(void)swapWithData:(NSMutableArray *)aData index1:(NSInteger)index1 index2:(NSInteger)index2;


@end

//
//  Sort.m
//

#import "Sort.h"

@interface Sort()
-(void)quickSortWithArray:(NSArray *)aData left:(NSInteger)left right:(NSInteger)right;
@end

@implementation Sort

- (id)init
{
    self = [super init];
    if (self) {
        // Initialization code here.
    }
    
    return self;
}

-(void)selectSortWithArray:(NSArray *)aData{
    NSMutableArray *data = [[NSMutableArray alloc]initWithArray:aData];
    for (int i=0; i<[data count]-1; i++) {
        int m =i;
        for (int j =i+1; j<[data count]; j++) {
            if ([data objectAtIndex:j] < [data objectAtIndex:m]) {
                m = j;
            }
        }
        if (m != i) {
            [self swapWithData:data index1:m index2:i];
        }
    }
    NSLog(@"选择排序后的结果：%@",[data description]);
    [data release];
}

-(void)insertSortWithArray:(NSArray *)aData{
    NSMutableArray *data = [[NSMutableArray alloc]initWithArray:aData];
    for (int i = 1; i < [data count]; i++) { id tmp = [data objectAtIndex:i]; int j = i-1; while (j != -1 && [data objectAtIndex:j] > tmp) {
            [data replaceObjectAtIndex:j+1 withObject:[data objectAtIndex:j]];
            j--;
        }
        [data replaceObjectAtIndex:j+1 withObject:tmp];
    }
    NSLog(@"插入排序后的结果：%@",[data description]);
    [data release];
}

-(void)quickSortWithArray:(NSArray *)aData{
    NSMutableArray *data = [[NSMutableArray alloc] initWithArray:aData];
    [self quickSortWithArray:data left:0 right:[aData count]-1];
    NSLog(@"快速排序后的结果：%@",[data description]);
    [data release];
    
}

-(void)quickSortWithArray:(NSMutableArray *)aData left:(NSInteger)left right:(NSInteger)right{
    if (right > left) {
        NSInteger i = left;
        NSInteger j = right + 1;
        while (true) {
            while (i+1 < [aData count] && [aData objectAtIndex:++i] < [aData objectAtIndex:left]) ; while (j-1 > -1 && [aData objectAtIndex:--j] > [aData objectAtIndex:left]) ;
            if (i >= j) {
                break;
            }
            [self swapWithData:aData index1:i index2:j];
        }
        [self swapWithData:aData index1:left index2:j];
        [self quickSortWithArray:aData left:left right:j-1];
        [self quickSortWithArray:aData left:j+1 right:right];
    }
}


-(void)dealloc{
    [super dealloc];
}

-(void)swapWithData:(NSMutableArray *)aData index1:(NSInteger)index1 index2:(NSInteger)index2{
    NSNumber *tmp = [aData objectAtIndex:index1];
    [aData replaceObjectAtIndex:index1 withObject:[aData objectAtIndex:index2]];
    [aData replaceObjectAtIndex:index2 withObject:tmp];
}

@end

//
//  main.m
//

#import 
#import "Sort.h"

#define kSize 20
#define kMax 100

int main (int argc, const char * argv[])
{
    
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    
    // insert code here...
    NSLog(@"Hello, World!");
    
    NSMutableArray *data = [[NSMutableArray alloc] initWithCapacity:kSize];
    
    for (int i =0;i 
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