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少了那句会WA的吧……In Reply To:再次感觉到Optimize的力量…… Posted by:Renegade at 2006-03-27 16:59:52 > #include<iostream>
> #include<algorithm>
> using namespace std;
> int i,j,n,l,item[100005],bc,sp;
> bool opt;
> bool cmp(const int a,const int b)
> {
> return a>b;
> }
> int main()
> {
> scanf("%d%d",&n,&l);
> for(i=0;i<n;i++)scanf("%d",item+i);
> sort(item,item+n,cmp);
> bc=n-1;
> sp=0;
> do{
> opt=false;
> for(i=sp;i<bc;i++){
> if(item[i]+item[bc]<=l){
> opt=true;
> bc--;
> sp=i+1; //有胆的去掉这一句试试看,呵呵
> break;
> }
> }
> }while(opt==true);
> printf("%d\n",bc+1);
> }
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