nyoj-282-You are my brother

 1 #include<stdio.h>
 2 #include<string.h>
 3 #include<algorithm>
 4 #include<math.h>
 5 using namespace std;
 6 int main()
 7 {
 8     int n,i,j;
 9     while(scanf("%d",&n)!=EOF)
10     {
11         int a=1,b=2,numa=0,numb=0,aa,bb;
12         for(i=0;i<n;i++)
13         {
14             scanf("%d%d",&aa,&bb);
15             if(aa==a)
16             {
17                 numa++;
18                 a=bb;
19             }
20             if(aa==b)
21             {
22                 numb++;
23                 b=bb;
24             }
25         }
26         if(numa==numb)
27             printf("You are my brother
");
28         else if(numa<numb)
29             printf("You are my younger
");
30         else
31             printf("You are my elder
");
32     }
33     return 0;
34 }

这题好水啊不说明白题意

我的考虑太片面所以下面粘上全面代码

 1 #include "stdio.h"
 2 typedef struct stu
 3 {
 4     int a;
 5     int b;
 6 }S;
 7 int main()
 8 {
 9     int i,j,n,ansa,ansb,amounta,amountb;
10     S old[1005];
11     while(scanf("%d",&n)==1)
12     {
13         for(i=0;i<n;i++)
14         {
15             scanf("%d%d",&old[i].a,&old[i].b);
16             if(old[i].a==1)//到little A；
17                 ansa=1;
18             if(old[i].a==2)//到little B;
19                 ansb=2;
20         }
21         amounta=1;
22         i=0;
23         while(i<n)//计算A是家族中的第几代；
24         {
25             for(i=0;i<n;i++)
26             {
27                 if(old[i].a==ansa)
28                 {
29                     amounta++;
30                     ansa=old[i].b;
31                     break;
32                 }
33             }
34         }
35         amountb=1;
36         j=0;
37         while(j<n)//计算B是家族中的第几代；
38         {
39             for(j=0;j<n;j++)
40             {
41                 if(old[j].a==ansb)
42                 {
43                    amountb++;
44                    ansb=old[j].b;
45                 }
46             }
47         }
48         if(amounta>amountb)
49             printf("You are my elder
");
50         else if(amounta<amountb)
51             printf("You are my younger
");
52         else
53             printf("You are my brother
");
54     }
55     return 0;
56 }