oj.uz

Submission #721996

# Submission time Handle Problem Language Result Execution time Memory
721996 2023-04-11T10:07:35 Z Sam_a17 Team Contest (JOI22_team) C++17
37 / 100
 194 ms 106464 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];


bool marked[M][M];

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 {
    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;
    }
    
    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]);
        }
      }
    }

    int answ = -1;
    for(int i = 2; i < M; i++) {
      for(int j = M - 1; j >= 2; j--) {
        if(marked[i][j]) {
          answ = max(answ, i + j + mat[i - 1][j - 1]);
          break;
        }
      }
    }

    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
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 135 ms 98324 KB Output is correct
2 Correct 135 ms 98252 KB Output is correct
3 Correct 132 ms 98356 KB Output is correct
4 Correct 141 ms 98336 KB Output is correct
5 Correct 138 ms 98296 KB Output is correct
6 Correct 138 ms 98244 KB Output is correct
7 Correct 136 ms 98404 KB Output is correct
8 Correct 135 ms 98344 KB Output is correct
9 Correct 136 ms 98284 KB Output is correct
10 Correct 135 ms 98248 KB Output is correct
11 Correct 137 ms 98328 KB Output is correct
12 Correct 134 ms 98300 KB Output is correct
13 Correct 142 ms 98288 KB Output is correct
14 Correct 140 ms 98440 KB Output is correct
15 Correct 144 ms 98400 KB Output is correct
16 Correct 149 ms 98420 KB Output is correct
17 Correct 135 ms 98360 KB Output is correct
18 Correct 136 ms 98432 KB Output is correct
19 Correct 142 ms 98428 KB Output is correct
20 Correct 134 ms 98364 KB Output is correct
21 Correct 135 ms 98376 KB Output is correct
22 Correct 137 ms 98412 KB Output is correct
23 Correct 136 ms 98412 KB Output is correct
24 Correct 139 ms 98328 KB Output is correct
25 Correct 134 ms 98400 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 135 ms 98324 KB Output is correct
2 Correct 135 ms 98252 KB Output is correct
3 Correct 132 ms 98356 KB Output is correct
4 Correct 141 ms 98336 KB Output is correct
5 Correct 138 ms 98296 KB Output is correct
6 Correct 138 ms 98244 KB Output is correct
7 Correct 136 ms 98404 KB Output is correct
8 Correct 135 ms 98344 KB Output is correct
9 Correct 136 ms 98284 KB Output is correct
10 Correct 135 ms 98248 KB Output is correct
11 Correct 137 ms 98328 KB Output is correct
12 Correct 134 ms 98300 KB Output is correct
13 Correct 142 ms 98288 KB Output is correct
14 Correct 140 ms 98440 KB Output is correct
15 Correct 144 ms 98400 KB Output is correct
16 Correct 149 ms 98420 KB Output is correct
17 Correct 135 ms 98360 KB Output is correct
18 Correct 136 ms 98432 KB Output is correct
19 Correct 142 ms 98428 KB Output is correct
20 Correct 134 ms 98364 KB Output is correct
21 Correct 135 ms 98376 KB Output is correct
22 Correct 137 ms 98412 KB Output is correct
23 Correct 136 ms 98412 KB Output is correct
24 Correct 139 ms 98328 KB Output is correct
25 Correct 134 ms 98400 KB Output is correct
26 Correct 194 ms 98860 KB Output is correct
27 Correct 191 ms 98860 KB Output is correct
28 Correct 185 ms 98756 KB Output is correct
29 Correct 173 ms 98828 KB Output is correct
30 Correct 158 ms 98836 KB Output is correct
31 Correct 188 ms 98832 KB Output is correct
32 Correct 166 ms 98748 KB Output is correct
33 Correct 141 ms 98728 KB Output is correct
34 Correct 152 ms 98808 KB Output is correct
35 Correct 135 ms 98380 KB Output is correct
36 Correct 133 ms 98380 KB Output is correct
37 Correct 148 ms 98824 KB Output is correct
38 Correct 150 ms 98860 KB Output is correct
39 Correct 142 ms 98596 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 98356 KB Output is correct
2 Correct 136 ms 98252 KB Output is correct
3 Correct 137 ms 98260 KB Output is correct
4 Correct 135 ms 98252 KB Output is correct
5 Correct 143 ms 98360 KB Output is correct
6 Correct 136 ms 98252 KB Output is correct
7 Correct 137 ms 98324 KB Output is correct
8 Correct 140 ms 98320 KB Output is correct
9 Correct 137 ms 98260 KB Output is correct
10 Correct 135 ms 98292 KB Output is correct
11 Correct 178 ms 106464 KB Output is correct
12 Incorrect 175 ms 103884 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #4
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 98356 KB Output is correct
2 Correct 136 ms 98252 KB Output is correct
3 Correct 137 ms 98260 KB Output is correct
4 Correct 135 ms 98252 KB Output is correct
5 Correct 143 ms 98360 KB Output is correct
6 Correct 136 ms 98252 KB Output is correct
7 Correct 137 ms 98324 KB Output is correct
8 Correct 140 ms 98320 KB Output is correct
9 Correct 137 ms 98260 KB Output is correct
10 Correct 135 ms 98292 KB Output is correct
11 Correct 178 ms 106464 KB Output is correct
12 Incorrect 175 ms 103884 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 98356 KB Output is correct
2 Correct 136 ms 98252 KB Output is correct
3 Correct 137 ms 98260 KB Output is correct
4 Correct 135 ms 98252 KB Output is correct
5 Correct 143 ms 98360 KB Output is correct
6 Correct 136 ms 98252 KB Output is correct
7 Correct 137 ms 98324 KB Output is correct
8 Correct 140 ms 98320 KB Output is correct
9 Correct 137 ms 98260 KB Output is correct
10 Correct 135 ms 98292 KB Output is correct
11 Correct 178 ms 106464 KB Output is correct
12 Incorrect 175 ms 103884 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 98356 KB Output is correct
2 Correct 136 ms 98252 KB Output is correct
3 Correct 137 ms 98260 KB Output is correct
4 Correct 135 ms 98252 KB Output is correct
5 Correct 143 ms 98360 KB Output is correct
6 Correct 136 ms 98252 KB Output is correct
7 Correct 137 ms 98324 KB Output is correct
8 Correct 140 ms 98320 KB Output is correct
9 Correct 137 ms 98260 KB Output is correct
10 Correct 135 ms 98292 KB Output is correct
11 Correct 178 ms 106464 KB Output is correct
12 Incorrect 175 ms 103884 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 135 ms 98324 KB Output is correct
2 Correct 135 ms 98252 KB Output is correct
3 Correct 132 ms 98356 KB Output is correct
4 Correct 141 ms 98336 KB Output is correct
5 Correct 138 ms 98296 KB Output is correct
6 Correct 138 ms 98244 KB Output is correct
7 Correct 136 ms 98404 KB Output is correct
8 Correct 135 ms 98344 KB Output is correct
9 Correct 136 ms 98284 KB Output is correct
10 Correct 135 ms 98248 KB Output is correct
11 Correct 137 ms 98328 KB Output is correct
12 Correct 134 ms 98300 KB Output is correct
13 Correct 142 ms 98288 KB Output is correct
14 Correct 140 ms 98440 KB Output is correct
15 Correct 144 ms 98400 KB Output is correct
16 Correct 149 ms 98420 KB Output is correct
17 Correct 135 ms 98360 KB Output is correct
18 Correct 136 ms 98432 KB Output is correct
19 Correct 142 ms 98428 KB Output is correct
20 Correct 134 ms 98364 KB Output is correct
21 Correct 135 ms 98376 KB Output is correct
22 Correct 137 ms 98412 KB Output is correct
23 Correct 136 ms 98412 KB Output is correct
24 Correct 139 ms 98328 KB Output is correct
25 Correct 134 ms 98400 KB Output is correct
26 Correct 194 ms 98860 KB Output is correct
27 Correct 191 ms 98860 KB Output is correct
28 Correct 185 ms 98756 KB Output is correct
29 Correct 173 ms 98828 KB Output is correct
30 Correct 158 ms 98836 KB Output is correct
31 Correct 188 ms 98832 KB Output is correct
32 Correct 166 ms 98748 KB Output is correct
33 Correct 141 ms 98728 KB Output is correct
34 Correct 152 ms 98808 KB Output is correct
35 Correct 135 ms 98380 KB Output is correct
36 Correct 133 ms 98380 KB Output is correct
37 Correct 148 ms 98824 KB Output is correct
38 Correct 150 ms 98860 KB Output is correct
39 Correct 142 ms 98596 KB Output is correct
40 Correct 137 ms 98356 KB Output is correct
41 Correct 136 ms 98252 KB Output is correct
42 Correct 137 ms 98260 KB Output is correct
43 Correct 135 ms 98252 KB Output is correct
44 Correct 143 ms 98360 KB Output is correct
45 Correct 136 ms 98252 KB Output is correct
46 Correct 137 ms 98324 KB Output is correct
47 Correct 140 ms 98320 KB Output is correct
48 Correct 137 ms 98260 KB Output is correct
49 Correct 135 ms 98292 KB Output is correct
50 Correct 178 ms 106464 KB Output is correct
51 Incorrect 175 ms 103884 KB Output isn't correct
52 Halted 0 ms 0 KB -