oj.uz

Submission #955419

# Submission time Handle Problem Language Result Execution time Memory
955419 2024-03-30T12:07:45 Z vjudge1 IOI Fever (JOI21_fever) C++17
11 / 100
 24 ms 56152 KB 
#include <bits/stdc++.h>
 
#pragma optimize("Ofast")
#pragma target("avx2")
 
using namespace std;
 
#define ll long long
#define ld long double
#define pb push_back
#define pf push_front
#define pii pair<int,int>
#define all(v) v.begin(),v.end()
#define F first
#define S second
#define mem(a,i) memset(a,i,sizeof(a))
#define sz(s) (int)s.size()
#define y1 yy
#define ppb pop_back
#define lb lower_bound
#define ub upper_bound
#define gcd(a,b) __gcd(a,b)
#define in insert
#define int ll
 
const int MAX=1e6+15;
const int B=300;
const int N=104;
const int block=400;
const int maxB=MAX/B+10;
const ll inf=1e18;  
const int mod=998244353;
const int mod1=1e9+9;
const ld eps=1e-9;
 
// int dx[8]={1,0,-1,0,1,-1,-1,1};
// int dy[8]={0,1,0,-1,1,-1,1,-1};
 
int binpow(int a,int n){
  if(!n)return 1;
  if(n%2==1)return a*binpow(a,n-1)%mod;
  int k=binpow(a,n/2);
  return k*k%mod;
}
 
int n;
pii a[MAX];
int b[MAX];
int d[MAX];
int dx[MAX],dy[MAX];
vector<int> vx[MAX],vy[MAX];
int ans;

void calc(int start,int nap){
  b[start]=nap;
  set<pii> st;
  for(int i=1;i<=n;i++)d[i]=inf;
  d[start]=0;
  st.in({0,start});
  while(!st.empty()){
    int v=st.begin()->S;
    st.erase(st.begin());
    for(auto to:vx[dx[v]]){
      if(d[to]>abs(a[v].F-a[to].F)&&d[v]<=abs(a[v].F-a[to].F)){
        if(b[v]==1){
          if(a[to].F<a[v].F){
            b[to]=2;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});
          }
        }
        if(b[v]==2){
          if(a[to].F>a[v].F){
            b[to]=1;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});
          }
        }
        if(b[v]==3){
          if(a[to].F>a[v].F){
            b[to]=4;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});
          }
        }
        if(b[v]==4){
          if(a[to].F<a[v].F){
            b[to]=3;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});            
          }
        }
      }
    }
    for(auto to:vy[dy[v]]){
      if(d[to]>abs(a[v].F-a[to].F)&&d[v]<=abs(a[v].F-a[to].F)){
        if(b[v]==1){
          if(a[to].F>a[v].F){
            b[to]=4;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});            
          }
        }
        if(b[v]==2){
          if(a[to].F>a[v].F){
            b[to]=1;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});            
          }
        }
        if(b[v]==3){
          if(a[to].F<a[v].F){
            b[to]=2;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});    
          }
        }
        if(b[v]==4){
          if(a[to].F<a[v].F){
            b[to]=3;
            st.erase({d[to],to});
            d[to]=abs(a[v].F-a[to].F);
            st.in({d[to],to});     
          }
        }
      }    
    }
  }
  int cur=0;
  for(int i=1;i<=n;i++)cur+=(d[i]!=inf);
  ans=max(ans,cur);
}

void solve(){
  cin>>n;
  set<int> d;
  map<int,int> mp;
  int cur=0;
  for(int i=1;i<=n;i++){
    cin>>a[i].F>>a[i].S;
    d.in(a[i].F+a[i].S);
  }
  for(int x:d)mp[x]=++cur;
  for(int i=1;i<=n;i++){
    dx[i]=mp[a[i].F+a[i].S];
    vx[mp[a[i].F+a[i].S]].pb(i);
  }

  cur=0;
  mp.clear();
  d.clear();

  for(int i=1;i<=n;i++){
    d.in(a[i].F-a[i].S);
  }
  for(int x:d)mp[x]=++cur;
  for(int i=1;i<=n;i++){
    dy[i]=mp[a[i].F-a[i].S];
    vy[mp[a[i].F-a[i].S]].pb(i);
  }

  for(int i=1;i<=4;i++){
    calc(1,i);
  }
  cout<<ans;
}
 
signed main(){
  //  freopen("help.in","r",stdin);
  //  freopen("help.out","w",stdout);
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  // prec();
  int t=1;
  // cin>>t;  
  while(t--)solve();
}

Compilation message

fever.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    3 | #pragma optimize("Ofast")
      | 
fever.cpp:4: warning: ignoring '#pragma target ' [-Wunknown-pragmas]
    4 | #pragma target("avx2")
      |

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 55900 KB Output is correct
2 Correct 14 ms 55900 KB Output is correct
3 Correct 12 ms 56036 KB Output is correct
4 Correct 12 ms 56036 KB Output is correct
5 Correct 13 ms 56000 KB Output is correct
6 Correct 12 ms 55896 KB Output is correct
7 Correct 15 ms 55900 KB Output is correct
8 Correct 12 ms 55896 KB Output is correct
9 Correct 13 ms 55900 KB Output is correct
10 Correct 12 ms 55900 KB Output is correct
11 Correct 12 ms 56012 KB Output is correct
12 Correct 13 ms 55968 KB Output is correct
13 Correct 13 ms 55900 KB Output is correct
14 Correct 12 ms 56032 KB Output is correct
15 Correct 14 ms 55900 KB Output is correct
16 Correct 12 ms 55900 KB Output is correct
17 Correct 12 ms 55900 KB Output is correct
18 Correct 13 ms 55900 KB Output is correct
19 Correct 12 ms 55900 KB Output is correct
20 Correct 12 ms 55896 KB Output is correct
21 Correct 12 ms 55900 KB Output is correct
22 Correct 12 ms 55896 KB Output is correct
23 Correct 13 ms 55900 KB Output is correct
24 Correct 13 ms 55896 KB Output is correct
25 Correct 12 ms 55900 KB Output is correct
26 Correct 12 ms 55900 KB Output is correct
27 Correct 12 ms 55896 KB Output is correct
28 Correct 12 ms 55900 KB Output is correct
29 Correct 12 ms 55960 KB Output is correct
30 Correct 12 ms 55896 KB Output is correct
31 Correct 12 ms 55900 KB Output is correct
32 Correct 12 ms 55956 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 55900 KB Output is correct
2 Correct 14 ms 55900 KB Output is correct
3 Correct 12 ms 56036 KB Output is correct
4 Correct 12 ms 56036 KB Output is correct
5 Correct 13 ms 56000 KB Output is correct
6 Correct 12 ms 55896 KB Output is correct
7 Correct 15 ms 55900 KB Output is correct
8 Correct 12 ms 55896 KB Output is correct
9 Correct 13 ms 55900 KB Output is correct
10 Correct 12 ms 55900 KB Output is correct
11 Correct 12 ms 56012 KB Output is correct
12 Correct 13 ms 55968 KB Output is correct
13 Correct 13 ms 55900 KB Output is correct
14 Correct 12 ms 56032 KB Output is correct
15 Correct 14 ms 55900 KB Output is correct
16 Correct 12 ms 55900 KB Output is correct
17 Correct 12 ms 55900 KB Output is correct
18 Correct 13 ms 55900 KB Output is correct
19 Correct 12 ms 55900 KB Output is correct
20 Correct 12 ms 55896 KB Output is correct
21 Correct 12 ms 55900 KB Output is correct
22 Correct 12 ms 55896 KB Output is correct
23 Correct 13 ms 55900 KB Output is correct
24 Correct 13 ms 55896 KB Output is correct
25 Correct 12 ms 55900 KB Output is correct
26 Correct 12 ms 55900 KB Output is correct
27 Correct 12 ms 55896 KB Output is correct
28 Correct 12 ms 55900 KB Output is correct
29 Correct 12 ms 55960 KB Output is correct
30 Correct 12 ms 55896 KB Output is correct
31 Correct 12 ms 55900 KB Output is correct
32 Correct 12 ms 55956 KB Output is correct
33 Incorrect 12 ms 55896 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 55964 KB Output is correct
2 Correct 13 ms 55900 KB Output is correct
3 Correct 12 ms 55900 KB Output is correct
4 Correct 12 ms 55900 KB Output is correct
5 Correct 12 ms 56004 KB Output is correct
6 Correct 12 ms 56152 KB Output is correct
7 Correct 12 ms 56048 KB Output is correct
8 Correct 12 ms 55952 KB Output is correct

Subtask #4
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 55900 KB Output is correct
2 Correct 14 ms 55900 KB Output is correct
3 Correct 12 ms 56036 KB Output is correct
4 Correct 12 ms 56036 KB Output is correct
5 Correct 13 ms 56000 KB Output is correct
6 Correct 12 ms 55896 KB Output is correct
7 Correct 15 ms 55900 KB Output is correct
8 Correct 12 ms 55896 KB Output is correct
9 Correct 13 ms 55900 KB Output is correct
10 Correct 12 ms 55900 KB Output is correct
11 Correct 12 ms 56012 KB Output is correct
12 Correct 13 ms 55968 KB Output is correct
13 Correct 13 ms 55900 KB Output is correct
14 Correct 12 ms 56032 KB Output is correct
15 Correct 14 ms 55900 KB Output is correct
16 Correct 12 ms 55900 KB Output is correct
17 Correct 12 ms 55900 KB Output is correct
18 Correct 13 ms 55900 KB Output is correct
19 Correct 12 ms 55900 KB Output is correct
20 Correct 12 ms 55896 KB Output is correct
21 Correct 12 ms 55900 KB Output is correct
22 Correct 12 ms 55896 KB Output is correct
23 Correct 13 ms 55900 KB Output is correct
24 Correct 13 ms 55896 KB Output is correct
25 Correct 12 ms 55900 KB Output is correct
26 Correct 12 ms 55900 KB Output is correct
27 Correct 12 ms 55896 KB Output is correct
28 Correct 12 ms 55900 KB Output is correct
29 Correct 12 ms 55960 KB Output is correct
30 Correct 12 ms 55896 KB Output is correct
31 Correct 12 ms 55900 KB Output is correct
32 Correct 12 ms 55956 KB Output is correct
33 Incorrect 12 ms 55896 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 55900 KB Output is correct
2 Correct 14 ms 55900 KB Output is correct
3 Correct 12 ms 56036 KB Output is correct
4 Correct 12 ms 56036 KB Output is correct
5 Correct 13 ms 56000 KB Output is correct
6 Correct 12 ms 55896 KB Output is correct
7 Correct 15 ms 55900 KB Output is correct
8 Correct 12 ms 55896 KB Output is correct
9 Correct 13 ms 55900 KB Output is correct
10 Correct 12 ms 55900 KB Output is correct
11 Correct 12 ms 56012 KB Output is correct
12 Correct 13 ms 55968 KB Output is correct
13 Correct 13 ms 55900 KB Output is correct
14 Correct 12 ms 56032 KB Output is correct
15 Correct 14 ms 55900 KB Output is correct
16 Correct 12 ms 55900 KB Output is correct
17 Correct 12 ms 55900 KB Output is correct
18 Correct 13 ms 55900 KB Output is correct
19 Correct 12 ms 55900 KB Output is correct
20 Correct 12 ms 55896 KB Output is correct
21 Correct 12 ms 55900 KB Output is correct
22 Correct 12 ms 55896 KB Output is correct
23 Correct 13 ms 55900 KB Output is correct
24 Correct 13 ms 55896 KB Output is correct
25 Correct 12 ms 55900 KB Output is correct
26 Correct 12 ms 55900 KB Output is correct
27 Correct 12 ms 55896 KB Output is correct
28 Correct 12 ms 55900 KB Output is correct
29 Correct 12 ms 55960 KB Output is correct
30 Correct 12 ms 55896 KB Output is correct
31 Correct 12 ms 55900 KB Output is correct
32 Correct 12 ms 55956 KB Output is correct
33 Incorrect 12 ms 55896 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #6
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 55900 KB Output is correct
2 Correct 14 ms 55900 KB Output is correct
3 Correct 12 ms 56036 KB Output is correct
4 Correct 12 ms 56036 KB Output is correct
5 Correct 13 ms 56000 KB Output is correct
6 Correct 12 ms 55896 KB Output is correct
7 Correct 15 ms 55900 KB Output is correct
8 Correct 12 ms 55896 KB Output is correct
9 Correct 13 ms 55900 KB Output is correct
10 Correct 12 ms 55900 KB Output is correct
11 Correct 12 ms 56012 KB Output is correct
12 Correct 13 ms 55968 KB Output is correct
13 Correct 13 ms 55900 KB Output is correct
14 Correct 12 ms 56032 KB Output is correct
15 Correct 14 ms 55900 KB Output is correct
16 Correct 12 ms 55900 KB Output is correct
17 Correct 12 ms 55900 KB Output is correct
18 Correct 13 ms 55900 KB Output is correct
19 Correct 12 ms 55900 KB Output is correct
20 Correct 12 ms 55896 KB Output is correct
21 Correct 12 ms 55900 KB Output is correct
22 Correct 12 ms 55896 KB Output is correct
23 Correct 13 ms 55900 KB Output is correct
24 Correct 13 ms 55896 KB Output is correct
25 Correct 12 ms 55900 KB Output is correct
26 Correct 12 ms 55900 KB Output is correct
27 Correct 12 ms 55896 KB Output is correct
28 Correct 12 ms 55900 KB Output is correct
29 Correct 12 ms 55960 KB Output is correct
30 Correct 12 ms 55896 KB Output is correct
31 Correct 12 ms 55900 KB Output is correct
32 Correct 12 ms 55956 KB Output is correct
33 Incorrect 12 ms 55896 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #7
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 55900 KB Output is correct
2 Correct 14 ms 55900 KB Output is correct
3 Correct 12 ms 56036 KB Output is correct
4 Correct 12 ms 56036 KB Output is correct
5 Correct 13 ms 56000 KB Output is correct
6 Correct 12 ms 55896 KB Output is correct
7 Correct 15 ms 55900 KB Output is correct
8 Correct 12 ms 55896 KB Output is correct
9 Correct 13 ms 55900 KB Output is correct
10 Correct 12 ms 55900 KB Output is correct
11 Correct 12 ms 56012 KB Output is correct
12 Correct 13 ms 55968 KB Output is correct
13 Correct 13 ms 55900 KB Output is correct
14 Correct 12 ms 56032 KB Output is correct
15 Correct 14 ms 55900 KB Output is correct
16 Correct 12 ms 55900 KB Output is correct
17 Correct 12 ms 55900 KB Output is correct
18 Correct 13 ms 55900 KB Output is correct
19 Correct 12 ms 55900 KB Output is correct
20 Correct 12 ms 55896 KB Output is correct
21 Correct 12 ms 55900 KB Output is correct
22 Correct 12 ms 55896 KB Output is correct
23 Correct 13 ms 55900 KB Output is correct
24 Correct 13 ms 55896 KB Output is correct
25 Correct 12 ms 55900 KB Output is correct
26 Correct 12 ms 55900 KB Output is correct
27 Correct 12 ms 55896 KB Output is correct
28 Correct 12 ms 55900 KB Output is correct
29 Correct 12 ms 55960 KB Output is correct
30 Correct 12 ms 55896 KB Output is correct
31 Correct 12 ms 55900 KB Output is correct
32 Correct 12 ms 55956 KB Output is correct
33 Incorrect 12 ms 55896 KB Output isn't correct
34 Halted 0 ms 0 KB -