Submission #97552

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
97552	2019-02-17 01:24:59	jasony123123	Pipes (CEOI15_pipes)	C++11	100 / 100	1514 ms	12476 KiB

pipes

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    #include <cstdio>
    #include <vector>
    using namespace std;
    #define pb push_back
    typedef pair<int,int> pp;
     
    int n, m;
     
    struct unf {
      int par[100010];
      void init(){ for(int i=1; i<=n; ++i) par[i]=i; }
     
      int root(int x){ return (x==par[x])?x:(par[x]=root(par[x])); }
      bool merge(int a,int b){
        a=root(a); b=root(b);
        if(a==b) return false;
        par[a]=b;
        return true;
      }
    } f1, f2;
     
    int par[100010];
    int idx[100010];
    int lowl[100010];
    int nt;
    vector<int> edge[100010];
     
    void dfs(int x){
      idx[x] = lowl[x] = ++nt;
      bool cl = false;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

pipes.cpp: In function 'int main()':
pipes.cpp:45:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
      scanf("%d%d", &n, &m);
      ~~~~~^~~~~~~~~~~~~~~~
pipes.cpp:49:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
      scanf("%d%d", &a, &b);
      ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10