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Time Limit: 1000MS | Memory Limit: 65536K | |
Total Submissions: 3602 | Accepted: 1675 |
Description
Input
Output
Sample Input
4 2
3 1 2 3
2 3 4
Sample Output
100
Hint
Source
1 #include<cstdio> 2 #include<cstring> 3 #include<algorithm> 4 5 using namespace std; 6 7 const int INF=0x3f3f3f3f; 8 const int MAXN=303; 9 10 int dp[MAXN][MAXN]; 11 int tmp[MAXN]; 12 13 void init(int N) 14 { 15 for(int i=1;i<=N;i++) 16 { 17 for(int j=1;j<=N;j++) 18 { 19 if(i==j) 20 dp[i][j]=0; 21 else 22 dp[i][j]=INF; 23 } 24 } 25 } 26 27 void floyd(int N) 28 { 29 for(int k=1;k<=N;k++) 30 for(int i=1;i<=N;i++) 31 for(int j=1;j<=N;j++) 32 dp[i][j]=min(dp[i][j],dp[i][k]+dp[k][j]); 33 } 34 35 void solve(int N) 36 { 37 int minc=INF; 38 for(int i=1;i<=N;i++) 39 { 40 int sum=0; 41 for(int j=1;j<=N;j++) 42 sum+=dp[i][j]; 43 if(sum<minc) 44 minc=sum; 45 } 46 printf("%d\n",minc*100/(N-1)); 47 } 48 49 int main() 50 { 51 int N,M; 52 while(~scanf("%d%d",&N,&M)) 53 { 54 init(N); 55 for(int i=0;i<M;i++) 56 { 57 int u; 58 scanf("%d",&u); 59 for(int j=1;j<=u;j++) 60 scanf("%d",&tmp[j]); 61 for(int j=1;j<=u;j++) 62 { 63 for(int k=1;k<=u;k++) 64 { 65 if(j==k) 66 continue; 67 dp[tmp[j]][tmp[k]]=1; 68 } 69 } 70 } 71 floyd(N); 72 73 solve(N); 74 } 75 return 0; 76 }
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原文地址:http://www.cnblogs.com/-maybe/p/4603474.html