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Re:这么简单的题怎么问题这么多啊?吓死我了

Posted by 504512803 at 2012-02-05 12:55:17 on Problem 2782
In Reply To:这么简单的题怎么问题这么多啊?吓死我了 Posted by:dou116703623 at 2008-10-17 17:14:00
> 最一般的方法就可以啊,排序嘛,才79MS啊
> #include<iostream>
> #include<algorithm>
> using namespace std;
> int a[100005];
> int main()
> {
> 	int n,len;
> 	scanf("%d%d",&n,&len);
> 	int i;
> 	for(i=0;i<n;i++)
> 	{
> 		scanf("%d",&a[i]);
> 	}
> 	
> 	sort(a,a+n);
> 	int j=0;
> 	int ans=0;
> 	
> 	for(i=n-1;i>=0;i--)
> 	{
> 		if(i==j) {ans++;break;}
> 		if(a[i]+a[j]<=len) j++;
> 		ans++;
> 		if(i==j) break;
> 	}
> 	printf("%d\n",ans);
> 	
> 	return 0;
> }

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