- (void)viewDidLoad {
[superviewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//冒泡
//[self storyBuddleByAray:[self creatStoryAryAndStart:0 andEnd:60000 andLength:50000] andDes:0];
//选择
//[self selectStroyByArray:[self creatStoryAryAndStart:0 andEnd:1000000 andLength:100000] andDes:0];
//插入排序
[selfinsterStoryByArray:[selfcreatStoryAryAndStart:0andEnd:1000000andLength:100000]andDesc:0];
//希尔排序
[selfhillStoryArray:[selfcreatStoryAryAndStart:0andEnd:1000000andLength:100000]andSetp:6andDesc:0];
}
//选择排序
- (void)selectStroyByArray:(NSMutableArray*)array andDes:(int)desc
{
if(array ==nil|| array.count==0)return;
NSLog(@"选择");
[selfprintCurrectTimeAndStartOrEndtimer:0];
for(inti =0; i < array.count; i++) {
intcurrectIndex = i;
for(intj = i +1; j < array.count; j++)
{
if([array[j]compare:array[currectIndex]] ==NSOrderedDescending)
{
[arrayexchangeObjectAtIndex:jwithObjectAtIndex:currectIndex];
}
}
}
[selfprintCurrectTimeAndStartOrEndtimer:1];
}
//冒泡排序
- (void)storyBuddleByAray:(NSMutableArray*)array andDes:(int)desc
{
if(array.count==0|| array ==nil)return;
[selfprintCurrectTimeAndStartOrEndtimer:0];
for(inti =1; i< array.count; i++)
{
for(intj =0; j < array.count- i ; j++)
{
if([array[j]compare:array[j+1]] ==NSOrderedAscending)
{
[arrayexchangeObjectAtIndex:j+1withObjectAtIndex:j];
}
}
}
[selfprintCurrectTimeAndStartOrEndtimer:1];
[selfprintStoryArray:arrayandFixIndex:0];
}
//插入排序
- (void)insterStoryByArray:(NSMutableArray*)array andDesc:(int)NSSortDescriptor
{
if(array.count==0|| array ==nil)return;
NSLog(@"插入排序开始");
NSDate*startDate = [NSDatedate];
for(inti =0; i < array.count; i++)
{
for(intj = i ; j >0; j--)
{
NSString*fixStr = [NSStringstringWithFormat:@"%@",array[j]];
NSString*pixStr = [NSStringstringWithFormat:@"%@",array[j-1]];
if(fixStr.integerValue<= pixStr.integerValue)break;//判断当前结束的条件
elseif(fixStr.integerValue> pixStr.integerValue)
{
[arrayexchangeObjectAtIndex:jwithObjectAtIndex:(j-1)];
}
}
}
NSDate*endDate = [NSDatedate];
[selfjudeTimeScendByStartTime:startDateandEndTime:endDate];
}
//希尔排序
- (void)hillStoryArray:(NSMutableArray*)list andSetp:(int)currectSetp andDesc:(int)desc
{
if(0== list.count||nil== list)return;
NSLog(@"希尔排序");
NSDate*date=[NSDatedate];
intgap = (int)[listcount] / currectSetp;
while(gap >=1) {
for(inti = gap ; i < [listcount]; i++){
NSIntegertemp = [[listobjectAtIndex:i]intValue];
intj = i;
while(j >= gap && temp < [[listobjectAtIndex:(j - gap)]intValue]) {
//替换而不是互换值
[listreplaceObjectAtIndex:jwithObject:[listobjectAtIndex:j-gap]];
j -= gap;
}
//替换而不是互换值
[listreplaceObjectAtIndex:jwithObject:@(temp)];
}
gap = gap / currectSetp;
}
NSDate*endDate = [NSDatedate];
[selfjudeTimeScendByStartTime:dateandEndTime:endDate];
}
/**
生成数组
@param startInt开始位置
@param endInt结束位置
@param aryCount长度
@return返回数组
*/
- (NSMutableArray*)creatStoryAryAndStart:(int)startInt andEnd:(int)endInt andLength:(int)aryCount
{
NSMutableArray*array = [NSMutableArrayarrayWithCapacity:0];
for(inti =0; i < aryCount; i++)
{
intindex =arc4random() % (endInt - startInt +1) + startInt;
NSString*objectStr = [NSStringstringWithFormat:@"%d",index];
[arrayaddObject:objectStr];
}
returnarray;
}
- (void)printCurrectTimeAndStartOrEndtimer:(int)str
{
NSDate*date=[NSDatedate];//获取当前时间
NSDateFormatter*format1=[[NSDateFormatteralloc]init];
[format1setDateFormat:@"yyyy/MM/dd HH:mm:ss"];
NSString*str1=[format1stringFromDate:date];
NSString*fixStr = str ?@"结束":@"开始";
NSLog(@"-%@时间-%@-----",fixStr,str1);
}
- (void)judeTimeScendByStartTime:(NSDate*)startDate andEndTime:(NSDate*)endDate
{
UInt64msecond1 = [startDatetimeIntervalSince1970];
UInt64msecond2 = [endDatetimeIntervalSince1970];
NSLog(@"%llu", msecond1 - msecond2);
}
- (void)printStoryArray:(NSMutableArray*)array andFixIndex:(int)fixInt
{
NSString*fixStr = fixInt ==0?@"排序完成":@"排序中";
NSString*compStr = [arraycomponentsJoinedByString:@" "];
NSLog(@"%@ : %@",fixStr,compStr);
}
- (void)didReceiveMemoryWarning {
[superdidReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
