25:最长最短单词

I am studying Programming language C in Peking University

Programming
I

 1 #include<iostream>
 2 #include<cstdio>
 3 #include<cstring>
 4 #include<cmath>
 5 using namespace std;
 6 int max_=-1;
 7 int max_begin;
 8 int max_end;
 9 int min_=10000;
10 int min_begin;
11 int min_end;
12 char a[1000001];
13 int b[1000001];
14 int main()
15 {
16     int tot=0;
17     gets(a);
18     int l=strlen(a);
19     for(int i=0;i<=l;i++)
20     {
21         int begin=i;
22         if((a[i]>=65&&a[i]<=90)||(a[i]>=97&&a[i]<=122))
23         {
24             tot++;
25         }
26         else
27         {
28             if(tot>max_)
29             {
30                 max_=tot;
31                 max_begin=i-tot;
32                 max_end=i;
33             }
34              if(tot<min_&&tot!=0)
35             {
36                 min_=tot;
37                 min_begin=i-tot;
38                 min_end=i;
39             
40             }
41             tot=0;
42         }
43     }
44     for(int i=max_begin;i<=max_end-1;i++)cout<<a[i];
45     cout<<endl;
46     for(int j=min_begin;j<=min_end-1;j++)cout<<a[j];
47     return 0;
48 }