Submission #1117431

# Submission time Handle Problem Language Result Execution time Memory
1117431 2024-11-23T15:06:42 Z ntdaccode trapezoid (balkan11_trapezoid) C++17
100 / 100
170 ms 37768 KB
#include<bits/stdc++.h>
#define fori(i,a,b) for(int i=a;i<=b;i++)
#define pb push_back

using namespace std;
typedef pair<int,int> ii;
typedef tuple<int,int,int> tp;
const int M=1e5+10;
const int N=4e5+10;
const int mod = 30013;

int n,m,a[M],b[M],c[M],d[M];

vector<int> rrh;

struct node
{
   int l,r,idx;
};
vector<node> L[N],R[N];

struct segment_tree
{
   ii t[4 * N];
   ii merged(const ii & l,const ii & r)
   {
      ii ret ={0,0} ;
      ret.first = max(l.first,r.first);
      if(l.first == ret.first) ret.second = l.second;
      if(r.first == ret.first) ret.second += r.second;
      ret.second %= mod;
      return ret;
   }
   void upd(int s, int l, int r, int pos, int val, int cnt)
   {
      if(l > pos || pos > r) return ;
      //cout << l << " " << r << " " << pos << " " << val <<  "\n";
      if(l == r) {
         if(t[s].first == val) t[s].second += cnt;
         else {
               if(val > t[s].first) t[s] = {val,cnt};
         }
         t[s].second %= mod;
         return ;
      }
      int mid = (l + r)/2;
      upd(s *2, l, mid, pos, val, cnt);
      upd(s * 2 + 1, mid + 1, r, pos, val, cnt);
      t[s] = merged(t[s * 2],t[s * 2 + 1]);
   }
   ii get(int s, int l, int r, int u, int v)
   {
      if(l > v || r < u) return {0,0};
      //cout << l << " " << r << " " << u << " " << v << " " << t[s].first <<  "\n";
      if(u <= l && r <= v) return t[s];
      int mid = (l + r)/2;
      return merged(get(s * 2, l, mid, u, v),get(s * 2 + 1, mid + 1, r, u, v));
   }

} T[2];

ii merged(const ii & l,const ii & r)
{
   ii ret ={0,0} ;
   ret.first = max(l.first,r.first);
   if(l.first == ret.first) ret.second = l.second;
   if(r.first == ret.first) ret.second += r.second;
   return ret;
}

int f[M],g[M];

int32_t main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  if(fopen("1.inp","r"))
  {
    freopen("1.inp","r",stdin);
    freopen("1.out","w",stdout);
  }
  #define task ""
  if(fopen(task".inp","r"))
  {
    freopen(task".inp","r",stdin);
    freopen(task".out","w",stdout);
  }

  cin >> n;
  for(int i = 1;i <= n; i++) {
      cin >> a[i] >> b[i] >> c[i] >> d[i];
      rrh.pb(a[i]),rrh.pb(b[i]),rrh.pb(c[i]),rrh.pb(d[i]);
  }

  sort(rrh.begin(),rrh.end());
  rrh.resize(unique(rrh.begin(),rrh.end()) - rrh.begin());
   m = rrh.size();
  for(int i = 1;i <= n ; i++) {
      a[i] = lower_bound(rrh.begin(),rrh.end(),a[i]) - rrh.begin() + 1;
      b[i] = lower_bound(rrh.begin(),rrh.end(),b[i]) - rrh.begin() + 1;
      c[i] = lower_bound(rrh.begin(),rrh.end(),c[i]) - rrh.begin() + 1;
      d[i] = lower_bound(rrh.begin(),rrh.end(),d[i]) - rrh.begin() + 1;
      L[a[i]].pb({c[i],d[i],i});
      R[b[i]].pb({c[i],d[i],i});
  }

  for(int i = 1;i <= m; i++) {
      for(node pos : L[i]) {
         ii x = T[0].get(1, 1, m, 1, pos.l - 1);
         if(x.first == 0) x.second = 1;
         x.first++;
         x.second %= mod;
         f[pos.idx] = x.first;
         g[pos.idx] = x.second;
         //cerr << T[0].t[1].first << " ";
         //cout << i  << " " << pos.l << " " << pos.r << " ";
         //cout << pos.idx << " " << f[pos.idx] << " " << g[pos.idx] << "sa\n";
      }
      for(node pos : R[i]) {
         T[0].upd(1, 1, m, pos.r, f[pos.idx], g[pos.idx]);
        // cout << i << " " << pos.l << " " << pos.r << " ";
        // cout << pos.idx << " " << f[pos.idx] << " " << g[pos.idx] << "\n";
      }
  }


  cout << T[0].t[1].first << " " << T[0].t[1].second % mod;

}

Compilation message

trapezoid.cpp: In function 'int32_t main()':
trapezoid.cpp:80:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |     freopen("1.inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~
trapezoid.cpp:81:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |     freopen("1.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:86:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |     freopen(task".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:87:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   87 |     freopen(task".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 10 ms 19792 KB Output is correct
2 Correct 8 ms 19968 KB Output is correct
3 Correct 13 ms 20048 KB Output is correct
4 Correct 14 ms 20156 KB Output is correct
5 Correct 14 ms 20048 KB Output is correct
6 Correct 17 ms 20304 KB Output is correct
7 Correct 17 ms 20304 KB Output is correct
8 Correct 19 ms 20560 KB Output is correct
9 Correct 26 ms 21460 KB Output is correct
10 Correct 32 ms 22860 KB Output is correct
11 Correct 41 ms 24520 KB Output is correct
12 Correct 83 ms 27592 KB Output is correct
13 Correct 113 ms 30788 KB Output is correct
14 Correct 129 ms 33552 KB Output is correct
15 Correct 127 ms 30912 KB Output is correct
16 Correct 153 ms 33516 KB Output is correct
17 Correct 158 ms 36008 KB Output is correct
18 Correct 132 ms 34744 KB Output is correct
19 Correct 152 ms 37768 KB Output is correct
20 Correct 170 ms 36288 KB Output is correct