A == B ? 皇星客栈

http://acm.hdu.edu.cn/showproblem.php?pid=2054
View Code
 1 #include<stdio.h>
 2 #include<string.h>
 3 
 4 int isdec( const char *p )
 5 {
 6     int i;
 7     int len=strlen(p);
 8     for( i=0 ; i<len ; i++ )
 9     {
10         if( *p == '.' )
11             return 1;
12         p++;
13     }
14     return 0;
15 }
16 
17 void change( char *p )
18 {
19     int len = strlen(p);
20     char *last = p+len-1;
21     while( *last == '0' )
22         *last-- = '\0';
23     if( *last == '.' ) //特别注意这个小数点
24         *last = '\0';
25     printf("%s\n",p);
26 }
27 
28 int main( )
29 {
30     char a[200000];
31     char b[200000];
32     char *x;
33     char *y;
34     while( scanf("%s %s",a,b) != EOF )
35     {
36         x = a;
37         y = b;
38         while( *x == '0' )
39             x++;
40         while( *y == '0' )
41             y++;
42         if( isdec(a) )
43             change(a);
44         if( isdec(b) )
45             change(b);
46         puts( strcmp(x,y)?"NO":"YES" );
47     }
48     return 0;
49 }