HDU 5038 Grade北京赛区网赛1005

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=5038

解题报告：就是输入n个数w，定义s = 10000 - (100 - w)^2，问s出现频率最高的是哪些，当所有的不同的s出现频率相同时，输出Bad Mushroom，当s只有一种时，直接输出。

 1 #include<cstdio>
 2 #include<cstring>
 3 #include<iostream>
 4 #include<algorithm>
 5 using namespace std;
 6 const int maxn = 10000;
 7 
 8 int num[maxn+5],ans[maxn+5];
 9 int main()
10 {
11     int T,n,kase = 1;
12     scanf("%d",&T);
13     while(T--)
14     {
15         scanf("%d",&n);
16         memset(num,0,sizeof(num));
17         memset(ans,0,sizeof(ans));
18         int w ,t,M =  0;
19         for(int i = 0;i < n;++i)
20         {
21             scanf("%d",&w);
22             t = 10000 - (100 - w) * (100 - w);
23             num[t]++;
24             M = max(M,num[t]);
25         }
26         int f = 0,tot = 0,tt = 0;
27         for(int i = 0;i <= 10000;++i)
28         if(num[i] == M)
29         {
30             ans[f++] = i;
31             tot++;
32             tt += num[i];
33         }
34         sort(ans,ans+f);
35         printf("Case #%d:
",kase++);
36         if(tot != 1 && tt == n)
37         {
38             puts("Bad Mushroom");
39             continue;
40         }
41         for(int i = 0;i < f;++i)
42         printf(i == f - 1? "%d
":"%d ",ans[i]);
43     }
44     return 0;
45 }

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