#include <stdio.h>
#include <iostream>
#include <fstream>
using namespace std;

int height[1000];
int n,m;
int cmp(const void *a1,const void *a2){
	return ( *(int *)a1-*(int *)a2   );
}

void main(){
//	ifstream cin("data.txt");
	int testcase=1;
	while(1){
		cin>>n>>m;
		if(n==0)break;
		memset(height,0,sizeof(height));
		for(int i=0;i<=n*m-1;i++){
			cin>>height[i];
		}
		qsort(height,n*m,sizeof(int),cmp);
		int sum;
		cin>>sum;
		double ave=(double)sum/100;
		for(i=1;i<n*m;i++){
			double tmp=0;
			for(int j=0;j<i;j++){
				tmp+=height[i]-height[j];
			}
			if(ave<=tmp){
				double t=(double)1.0*(tmp-ave)/i;
				printf("Region %d\n",testcase++);
				printf("Water level is %.2lf meters.\n",height[i]-t);
				printf("%.2lf percent of the region is under water.\n",(double)100.0*i/(n*m));
				break;
			}
		}
		
	}

}

• Re:我哪里错了？？为什么WA (952) hezunliang 2008-08-18 16:33:40
• Re:我哪里错了？？为什么WA (952) hezunliang 2008-08-18 16:34:03
  • if(ave<=tmp){ (18) hezunliang 2008-08-18 16:35:39