oj.uz

Submission #722044

# Submission time Handle Problem Language Result Execution time Memory
722044 2023-04-11T10:54:59 Z Sam_a17 Team Contest (JOI22_team) C++17
18 / 100
 2000 ms 12056 KB 
#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
//#include "temp.cpp"
#include <cstdio>
using namespace std;
 
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; print(x); cerr << endl;
#else
#define dbg(x)
#endif
 
#define sz(x) (int((x).size()))
#define len(x) (int)x.length()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define clr(x) (x).clear()
#define uniq(x) x.resize(unique(all(x)) - x.begin());
#define blt(x) __builtin_popcount(x)
 
#define pb push_back
#define popf pop_front
#define popb pop_back
 
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
 
template <class T, class V> void print(pair <T, V> p);
template <class T> void print(vector <T> v);
template <class T> void print(set <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T> void print(multiset <T> v);
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]";}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(deque <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
 
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define nl '\n'
 
// for grid problems
int dx[8] = {-1,0,1,0,1,-1,1,-1};
int dy[8] = {0,1,0,-1,1,1,-1,-1};
 
// lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6
void fastIO() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr); cout.tie(nullptr);
}
// file in/out
void setIO(string str = "") {
  fastIO();
 
  if (str != "") {
    freopen((str + ".in").c_str(), "r", stdin);
    freopen((str + ".out").c_str(), "w", stdout);
  }
}
// Indexed Set
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const int N = 150005, M = 5005;
int x[N], y[N], z[N];
int n, mat[M][M];

map<int, vector<pair<int, int>>> mp;
bool marked[M][M];

struct segTreeMax {
  vector<long long> mTree;
  int size;
 
  void init(long long n) {
    size = 1;
    while(size < n)  {
      size *= 2;
    }
    mTree.assign(2 * size - 1, INT64_MIN);
  }
 
  void upd(int u, long long v, int x, int lx, int rx) { // set value at pos u
    if(rx - lx == 1) {
      mTree[x] = max(mTree[x], v);
      return;
    }
 
    int m = (lx + rx) / 2;
    if(u < m) {
      upd(u, v, 2 * x + 1, lx, m);
    }else {
      upd(u, v, 2 * x + 2, m, rx);
    }
    mTree[x] = max(mTree[2 * x + 1], mTree[2 * x + 2]);
  }
 
  void upd(int u, long long v) {
    upd(u, v, 0, 0, size);
  }
 
  long long qry (int l, int r, int x, int lx, int rx) { // range queries
    if(l >= rx || lx >= r) {
      return INT64_MIN;
    }
    if(lx >= l && r >= rx) {
      return mTree[x];
    }
 
    int m = (rx + lx) / 2;
    long long s1 = qry(l, r, 2 * x + 1, lx, m);
    long long s2 = qry(l, r, 2 * x + 2, m, rx);
    return max(s1, s2);
  }
 
  long long qry(int l, int r) {
    return qry(l, r, 0, 0, size);
  }
};

segTreeMax seg_max;

void solve_() {
  cin >> n;

  vector<pair<long long, int>> xs, ys, zs;
  vector<pair<pair<long long, long long>, int>> vec;
  vector<long long> values_x, values_y;
  for(int i = 1; i <= n; i++) {
    cin >> x[i] >> y[i] >> z[i];

    values_x.push_back(x[i]);
    values_y.push_back(y[i]);
    vec.push_back({{x[i], y[i]}, z[i]});
  }

  // if(n <= 4000) { 
  //   sort(all(vec));
  //   uniq(vec);

  //   sort(all(values_x));
  //   uniq(values_x);
    
  //   sort(all(values_y));
  //   uniq(values_y);

  //   n = sz(vec);

  //   auto getx = [&](long long val)-> int { 
  //     return lower_bound(all(values_x), val) - values_x.begin() + 1;
  //   };

  //   auto gety = [&](long long val)-> int { 
  //     return lower_bound(all(values_y), val) - values_y.begin() + 1;
  //   };

  //   for(int i = 1; i <= n; i++) {
  //     x[i] = getx(vec[i - 1].first.first);
  //     y[i] = gety(vec[i - 1].first.second);
  //     z[i] = vec[i - 1].second;

  //     if(x[i] < M && y[i] < M) {
  //       mat[x[i]][y[i]] = max(mat[x[i]][y[i]], vec[i - 1].second);
  //     }

  //     //
  //     xs.emplace_back(x[i], i);
  //     ys.emplace_back(y[i], i);
  //     zs.emplace_back(z[i], i);
  //   }

  //   for(int i = 0; i < M; i++) {
  //     for(int j = 0; j < M; j++) {
  //       if(i - 1 >= 0) {
  //         mat[i][j] = max(mat[i][j], mat[i - 1][j]);
  //       }

  //       if(j - 1 >= 0) {
  //         mat[i][j] = max(mat[i][j], mat[i][j - 1]);
  //       }
  //     }
  //   }

  //   sort(rall(xs));
  //   sort(rall(ys));
  //   sort(rall(zs));

  //   long long answ = -1;
  //   for(int i = 0; i < n; i++) {
  //     for(int j = 0; j < n; j++) {
  //       int xx = xs[i].second, yy = ys[j].second;
  //       if(x[xx] <= x[yy]) {
  //         continue;
  //       }
        
  //       if(y[yy] <= y[xx]) {
  //         continue;
  //       }

  //       int mx_z = 0;
  //       if(x[xx] && y[yy]) {
  //         mx_z = mat[x[xx] - 1][y[yy] - 1];
  //       }

  //       if(mx_z && mx_z > z[xx] && mx_z > z[yy] && values_x[x[xx] - 1] + values_y[y[yy] - 1] + mx_z > answ) {
  //         answ = max(answ, values_x[x[xx] - 1] + values_y[y[yy] - 1] + mx_z);
  //       }
  //     }
  //   }

  //   cout << answ << '\n';
  // } else {

    // sort(all(vec));
    // uniq(vec);

    // for(int i = 1; i <= n; i++) {
    //   x[i] = vec[i - 1].first.first;
    //   y[i] = vec[i - 1].first.second;
    //   z[i] = vec[i - 1].second;

    //   if(x[i] < M && y[i] < M) {
    //     mat[x[i]][y[i]] = max(mat[x[i]][y[i]], vec[i - 1].second);
    //   }

    //   //
    //   xs.emplace_back(x[i], i);
    //   ys.emplace_back(y[i], i);
    //   zs.emplace_back(z[i], i);
    // }

    vector<bool> mar(M);
    vector<int> mn(M, INT32_MAX);

    seg_max.init(M + 1);
    for(int i = 1; i <= n; i++) {
      mat[x[i]][y[i]] = max(mat[x[i]][y[i]], z[i]);
      marked[x[i]][y[i]] = true;
      mp[x[i]].push_back({y[i], z[i]});
    }
    
    int answ = -1;
    for(auto i: mp) {
      for(auto j: i.second) {
        for(int k = j.first + 1; k < M; k++) {
          if(!mar[k]) continue;
          int new_z = seg_max.qry(1, k);
          if(new_z <= j.second) continue;
          if(new_z <= mn[k]) continue;
          answ = max(answ, i.first + k + new_z);
        }
      }

      for(auto j: i.second) {
        mar[j.first] = true;
        mn[j.first] = min(mn[j.first], j.second);
        seg_max.upd(j.first, j.second);
      }
    }

    cout << answ << '\n';
  // }
}
 
int main() {
  setIO();
 
  auto solve = [&](int test_case)-> void {
    while(test_case--) {
      solve_();
    }
  };
 
  int test_cases = 1;
  // cin >> test_cases;
  solve(test_cases);
 
  return 0;
}

Compilation message

team.cpp: In function 'void setIO(std::string)':
team.cpp:64:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |     freopen((str + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
team.cpp:65:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |     freopen((str + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Runtime error 3 ms 852 KB Execution killed with signal 11
15 Halted 0 ms 0 KB -

Subtask #2
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Runtime error 3 ms 852 KB Execution killed with signal 11
15 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 813 ms 10460 KB Output is correct
12 Correct 572 ms 7044 KB Output is correct
13 Correct 694 ms 8440 KB Output is correct
14 Correct 894 ms 10608 KB Output is correct
15 Correct 830 ms 10968 KB Output is correct
16 Correct 813 ms 11396 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 813 ms 10460 KB Output is correct
12 Correct 572 ms 7044 KB Output is correct
13 Correct 694 ms 8440 KB Output is correct
14 Correct 894 ms 10608 KB Output is correct
15 Correct 830 ms 10968 KB Output is correct
16 Correct 813 ms 11396 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 13 ms 724 KB Output is correct
22 Correct 889 ms 10468 KB Output is correct
23 Correct 895 ms 10472 KB Output is correct
24 Correct 655 ms 7516 KB Output is correct
25 Correct 869 ms 10512 KB Output is correct
26 Correct 806 ms 11072 KB Output is correct

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 813 ms 10460 KB Output is correct
12 Correct 572 ms 7044 KB Output is correct
13 Correct 694 ms 8440 KB Output is correct
14 Correct 894 ms 10608 KB Output is correct
15 Correct 830 ms 10968 KB Output is correct
16 Correct 813 ms 11396 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 13 ms 724 KB Output is correct
22 Correct 889 ms 10468 KB Output is correct
23 Correct 895 ms 10472 KB Output is correct
24 Correct 655 ms 7516 KB Output is correct
25 Correct 869 ms 10512 KB Output is correct
26 Correct 806 ms 11072 KB Output is correct
27 Correct 4 ms 1620 KB Output is correct
28 Correct 3 ms 1108 KB Output is correct
29 Correct 2 ms 1236 KB Output is correct
30 Correct 2 ms 1364 KB Output is correct
31 Correct 52 ms 3404 KB Output is correct
32 Correct 6 ms 2900 KB Output is correct
33 Correct 8 ms 2900 KB Output is correct
34 Execution timed out 2088 ms 12056 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 813 ms 10460 KB Output is correct
12 Correct 572 ms 7044 KB Output is correct
13 Correct 694 ms 8440 KB Output is correct
14 Correct 894 ms 10608 KB Output is correct
15 Correct 830 ms 10968 KB Output is correct
16 Correct 813 ms 11396 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 13 ms 724 KB Output is correct
22 Correct 889 ms 10468 KB Output is correct
23 Correct 895 ms 10472 KB Output is correct
24 Correct 655 ms 7516 KB Output is correct
25 Correct 869 ms 10512 KB Output is correct
26 Correct 806 ms 11072 KB Output is correct
27 Correct 4 ms 1620 KB Output is correct
28 Correct 3 ms 1108 KB Output is correct
29 Correct 2 ms 1236 KB Output is correct
30 Correct 2 ms 1364 KB Output is correct
31 Correct 52 ms 3404 KB Output is correct
32 Correct 6 ms 2900 KB Output is correct
33 Correct 8 ms 2900 KB Output is correct
34 Execution timed out 2088 ms 12056 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Runtime error 3 ms 852 KB Execution killed with signal 11
15 Halted 0 ms 0 KB -