Submission #933883

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
933883	2024-02-26 13:15:52	moonrabbit2	Making Friends on Joitter is Fun (JOI20_joitter2)	C++17	0 / 100	7 ms	20164 KiB

joitter2

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#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
using ll=long long;
const ll mod=1000000007;
const int N=100005;
int n,m;
struct UF{
  int p[N];
  ll ans=0,sz[N];
  set<int> in[N],out[N],inV[N],S[N];
  void init(){
    for(int i=1;i<=n;i++){
      p[i]=0;
      sz[i]=1;
      S[i].emplace(i);
    }
  }
  int Find(int u){
    if(!p[u]) return u;
    return p[u]=Find(p[u]);
  }
 
 
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Compilation message (stderr)

joitter2.cpp: In member function 'void UF::add(int, int)':
joitter2.cpp:10:20: warning: statement has no effect [-Wunused-value]
   10 | #define debug(...) 42
      |                    ^~
joitter2.cpp:38:4: note: in expansion of macro 'debug'
   38 |    debug(sz[Gu],sz[Gv],inV[Gu],inV[Gv]);
      |    ^~~~~
joitter2.cpp:10:20: warning: statement has no effect [-Wunused-value]
   10 | #define debug(...) 42
      |                    ^~
joitter2.cpp:62:4: note: in expansion of macro 'debug'
   62 |    debug(sz[Gu],inV[Gu]);
      |    ^~~~~
joitter2.cpp:10:20: warning: statement has no effect [-Wunused-value]
   10 | #define debug(...) 42
      |                    ^~
joitter2.cpp:68:4: note: in expansion of macro 'debug'
   68 |    debug(sz[Gv]);
      |    ^~~~~

• Subtask 1: 0 / 1
• Subtask 2: 0 / 16
• Subtask 3: 0 / 83