제출 #785555

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
785555		christinelynn	Global Warming (CEOI18_glo)	C++17	15 / 100	2064 ms	27480 KiB

glo

#include <bits/stdc++.h>
#define LL long long
using namespace std;
int main()
{
  LL n,x;
  scanf("%lld %lld",&n,&x);
  LL arr[n+5];
  for(LL a=1;a<=n;a++)
  {
    scanf("%lld",&arr[a]);
  }
  LL maks=0;
  if(x!=0)
  {
    for(LL a=1;a<=n;a++)
  {
    for(LL b=a;b<=n;b++)
    {
      for(LL c=-x;c<=x;c++)
      {
      //  bool flag=0;
      //  if(a==2 && b==3 && c==-5)flag=1;
        LL temp[n+5];
        for(LL a=1;a<=n;a++)temp[a]=arr[a];
        for(LL x=a;x<=b;x++)
        {
          temp[x]+=c;
        }
        LL dp[n+5];
        LL akhir=0;
        for(LL d=1;d<=n;d++)
        {
          dp[d]=0;
          for(LL e=1;e<d;e++)
          {
            if(temp[e]<temp[d])
            dp[d]=max(dp[e],dp[d]);
          }
    //    printf("dp[%lld]=%lld, arr[%lld]=%lld\n",d,dp[d],d,arr[d]);
          dp[d]++;
          akhir=max(akhir,dp[d]);
        }
        maks=max(akhir,maks);
        
    //    if(flag){
    //      for(LL a=1;a<=n;a++)cout<<dp[a]<<endl;
    //    }
        //flag=0;
        
      }
    }
  }
  cout<<maks<<endl;
  }
  
  if(!x)
  {
    LL dp[n+5]; // LIS pakai indeks sekarang
    LL dp2[n+5]; //LIS sampai ke indeks sekarang
    priority_queue<LL>pq[200005];
    map<LL,LL>mp;
    multiset<LL>s;
    dp2[0]=0;
    for(LL a=1;a<=n;a++)
    {
    //  printf("a=%lld\n",a);
      if(s.empty())
      {
        s.insert(arr[a]);
        pq[1].push(arr[a]);
        
        dp[a]=1,dp2[a]=1;
      } 
      else
      {
        auto jeje =s.lower_bound(arr[a]);
        auto temp=jeje;
        jeje--;
      //  for(LL a:s)cout<<a;
      //  cout<<endl;
        if(jeje==temp)
        {
          s.insert(arr[a]);
        //  printf("MASUK\n");
          pq[1].push(arr[a]);
          while(pq[1].size()>1)
          {
            LL jeje=pq[1].top();
            pq[1].pop();
            s.erase(s.find(jeje));
          }
          dp[a]=1,dp2[a]=1;
        }
        else
        {
          s.insert(arr[a]);
        //  join(mp[*jeje],a);
          LL sim=dp[mp[*jeje]];
          pq[sim+1].push(arr[a]);
          while(pq[sim+1].size()>1)
          {
            LL jeje=pq[sim+1].top();
            pq[sim+1].pop();
            s.erase(s.find(jeje));
          }
          dp[a]=sim+1;
        }
      }
      mp[arr[a]]=a;
      dp2[a]=max(dp2[a-1],dp[a]);
    }
    
  //  for(LL a=1;a<=n;a++)
  //  {
  //    cout<<dp[a]<<" "<<dp2[a]<<endl;
  //  }
    cout<<dp2[n];
  }
  
}

컴파일 시 표준 에러 (stderr) 메시지

glo.cpp: In function 'int main()':
glo.cpp:7:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |   scanf("%lld %lld",&n,&x);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~
glo.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%lld",&arr[a]);
      |     ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 13
• Subtask 4: 10 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25