88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
#include<iostream>
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#include<string.h>
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using namespace std;
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const int maxn=1005;
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int map[maxn][maxn],n,cnt[maxn][maxn];
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char name[maxn][100];
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int match_name(char str[])
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{
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for(int i=1;i<n;i++)
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if(strcmp(str,name[i])==0)
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return i;
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strcpy(name[n],str);
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return n++;
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}
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void str_convert(char str[])
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{
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int i,j,first_node,k;
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bool flag=0;
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char str1[100];
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for(i=0;i<strlen(str);)
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{
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for(j=0;str[i]!=' '&&str[i]!='\0';i++,j++)
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str1[j]=str[i];
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str1[j]='\0';
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i++;
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k=match_name(str1);
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if(flag==0)
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{
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first_node=k;
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flag=1;
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}
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else if(map[first_node][k]==0)
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{
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map[first_node][k]=map[k][first_node]=1;
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cnt[first_node][k]=cnt[k][first_node]=1;
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}
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}
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}
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void floyd()
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{
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int i,j,k;
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for(k=1;k<n;k++)
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for(i=1;i<n;i++)
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for(j=1;j<n;j++)
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if(map[i][k] && map[k][j])
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if(map[i][j]==0)
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{
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map[i][j]=map[i][k]+map[k][j];
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cnt[i][j]=cnt[i][k]*cnt[k][j];
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}
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else if(map[i][k]+map[k][j]<map[i][j])
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{
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map[i][j]=map[i][k]+map[k][j];
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cnt[i][j]=cnt[i][k]*cnt[k][j];
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}
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else if(map[i][k]+map[k][j]==map[i][j])
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cnt[i][j] += cnt[i][k]*cnt[k][j];
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}
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int main()
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{
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int i,j;
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char str[100],str1[100],str2[100];
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gets(str);
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while(gets(str))
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{
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n=1;
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memset(map,0,sizeof(map));
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memset(cnt,0,sizeof(cnt));
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str_convert(str);
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while(gets(str))
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{
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if(strcmp(str,"GRAPH END")==0) break;
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str_convert(str);
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}
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for(i=1;i<n;i++)
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map[i][i]=1;
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floyd();
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while(cin>>str1>>str2)
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{
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if(strcmp(str1,"GRAPH")==0 && strcmp(str2,"BEGIN")==0) break;
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i=match_name(str1);
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j=match_name(str2);
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cout<<str1<<" "<<str2<<" "<<cnt[i][j]<<endl;
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}
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}
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return 0;
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}
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