刷题记录--UVa815 Flooded!

　　这道题放在紫书最后一道，我以为挺难的，没想到挺简单的。

　　怎么一直不给结果，不等了，先睡了，明天再起来看。

#include<cstdio>
#include<iostream>
#include<algorithm>
using namespace std;

int main(){
    int m,n,kase=0;
    double total;
    while(scanf("%d%d",&m,&n)==2&&m!=0){
        printf("Region %d\n",++kase);
        int region[m*n];
        for(int i=0;i<m*n;i++)scanf("%d",&region[i]);
        cin>>total;
        int t=total/100.0;
        sort(region,region+m*n);
        int i,j;
        for(i=0;i<m*n;i++){
            for(j=0;j<i;j++)total+=region[j];
            total=total/i;
            if(region[i]>total)break;
            total=t;
        }
        printf("Water level is %.2f meters.\n",total);
        printf("%.2f percent of the region is under water.\n\n",i/(double)(m*n)*100);
    }
    return 0;
}