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Re:我的代码,WA了~~~~哭死,不知道什么原有啊!能考虑都考虑到了,请高手指点一下呀~~~

Posted by derness at 2007-07-23 19:02:05 on Problem 1007
In Reply To:我的代码,WA了~~~~哭死,不知道什么原有啊!能考虑都考虑到了,请高手指点一下呀~~~ Posted by:derness at 2007-07-23 18:49:34
> 运行所给的例子是对的。不知道是不是有什么特牛的数据不行?
> #include<iostream>
> using namespace std;
> int  Partition(int a[], int ,int );
> int  Fastsort(int a[], int ,int );
> int  Swap(int&, int&);
> int unsort_Num(char * a,int n)
> {
> 	int count=0;
> 	for(int i=0;i<n;i++){
> 		for(int j=i+1;j<n;j++){
> 			if(a[i]>a[j])
> 				count++;
> 		}
> 	}
>     return count;
> }
> int main(void)
> {
> 	int n,m,i,ii,l,ln;
> 	cin>>n>>m;
> 	char **d= new char* [m];
> 	for(i = 0;i<m;i++){
>         d[i] = new char [n];
> 		cin>>d[i];
> 	}
> 	int *unsortedness = new int[m];
> 	int *flag = new int [m];
> 	for(ii = 0;ii<m;ii++){
> 		flag[ii]=0;
> 		unsortedness[ii]=0;
> 		unsortedness[ii]= unsort_Num(d[ii],n);
> 	}
> 	int *copy= new int [m];
> 	for(ln=0;ln<m;ln++)
> 		copy[ln]=unsortedness[ln];
> 	Fastsort(copy,0,m);
> 	for(l=1;l<=m;l++)//l之所以从1开始,是因为我写快排的时候把下标从1
>开始的
> 	{
> 		for(int p=0;p<m;p++)
> 			if(copy[l] == unsortedness[p] && flag[p]==0){
> 				flag[p] = 1;//当数组有相同项时,flag跳过已经输出过的项。
> 				cout<<d[p]<<endl;
>                                    break;
> 			}
> 	}
> 	return 0;
> }
> 
> int Partition(int a[], int p,int r)
> {
> 	int x = a[p];
> 	int i = p-1;
> 	int j = r+1;
> 	while(1)
> 	{
> 		do{
> 			j--;	
> 		}while(a[j] > x);
> 		do{
> 			i++;
> 		}while(a[i] < x);
> 		if(i<j){
> 			Swap(a[i],a[j]);
> 		}
> 		else return j;
> 	}
> }
> 
> int Fastsort(int a[], int p,int r)
> {
> 	if(p < r)
> 	{
> 		int q = Partition(a, p, r);
> 		Fastsort(a, p, q);
> 		Fastsort(a, q+1,r);
> 	}
> 	else return 0;
> }
> 
> int Swap(int& a,int& b)
> {
> 	int temp =a;
> 	a = b;
> 	b = temp;
> 	return 0;
> }

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