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Re:这么简单的题目为什么给我WA??难道我PRIM错了???In Reply To:这么简单的题目为什么给我WA??难道我PRIM错了??? Posted by:kikif at 2007-09-14 10:42:20 > #include <iostream> > #include <fstream> > using namespace std; > > int n; > int mark[110]; > int cost[110][110]; > > int total; > > > void prim(){ > mark[1]=1; > int dest[110]; > int i,j,k; > > for(i=2;i<=n;i++){ > dest[i]=cost[1][i]; > } > for(i=1;i<n;i++){ > int min=1000000; > int node=-1; > for(j=1;j<=n;j++){ > if(mark[j]==0&&dest[j]<min){ > min=dest[j]; > node=j; > } > } > mark[node]=1; > total+=min; > for(j=1;j<=n;j++){ > if(mark[j]==0&&dest[j]>cost[node][j]){ > dest[j]=cost[node][j]; > } > } > > } > } > > > > > void main(){ > // ifstream cin("data.txt"); > while(cin>>n){ > int i,j,k; > > for(i=1;i<=n;i++){ > for(j=1;j<=n;j++){ > cin>>cost[i][j]; > } > } > total=0; > prim(); > cout<<total<<endl; > > } > } Followed by: Post your reply here: |
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