oj.uz

Submission #721982

# Submission time Handle Problem Language Result Execution time Memory
721982 2023-04-11T09:49:13 Z Sam_a17 Team Contest (JOI22_team) C++17
0 / 100
 2000 ms 127792 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 = 4004;
int x[N], y[N], z[N];
int n, mat[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;
  for(int i = 1; i <= n; i++) {
    cin >> x[i] >> y[i] >> z[i];

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

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

  sort(all(values));
  uniq(values);

  n = sz(vec);

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

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

  assert(sz(xs) == n);

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

  if(n > 10) {
    assert(answ != -1);
  }
  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 87 ms 62972 KB Output is correct
2 Correct 89 ms 62980 KB Output is correct
3 Correct 89 ms 62976 KB Output is correct
4 Correct 102 ms 63052 KB Output is correct
5 Correct 89 ms 63056 KB Output is correct
6 Correct 90 ms 62956 KB Output is correct
7 Correct 92 ms 62992 KB Output is correct
8 Correct 102 ms 62952 KB Output is correct
9 Correct 95 ms 63060 KB Output is correct
10 Correct 89 ms 62936 KB Output is correct
11 Correct 89 ms 62992 KB Output is correct
12 Correct 95 ms 62936 KB Output is correct
13 Correct 97 ms 62964 KB Output is correct
14 Correct 96 ms 63076 KB Output is correct
15 Correct 90 ms 63100 KB Output is correct
16 Correct 93 ms 63132 KB Output is correct
17 Runtime error 159 ms 127792 KB Execution killed with signal 6
18 Halted 0 ms 0 KB -

Subtask #2
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 62972 KB Output is correct
2 Correct 89 ms 62980 KB Output is correct
3 Correct 89 ms 62976 KB Output is correct
4 Correct 102 ms 63052 KB Output is correct
5 Correct 89 ms 63056 KB Output is correct
6 Correct 90 ms 62956 KB Output is correct
7 Correct 92 ms 62992 KB Output is correct
8 Correct 102 ms 62952 KB Output is correct
9 Correct 95 ms 63060 KB Output is correct
10 Correct 89 ms 62936 KB Output is correct
11 Correct 89 ms 62992 KB Output is correct
12 Correct 95 ms 62936 KB Output is correct
13 Correct 97 ms 62964 KB Output is correct
14 Correct 96 ms 63076 KB Output is correct
15 Correct 90 ms 63100 KB Output is correct
16 Correct 93 ms 63132 KB Output is correct
17 Runtime error 159 ms 127792 KB Execution killed with signal 6
18 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 63028 KB Output is correct
2 Correct 88 ms 62960 KB Output is correct
3 Correct 99 ms 63052 KB Output is correct
4 Correct 104 ms 63036 KB Output is correct
5 Correct 93 ms 63160 KB Output is correct
6 Correct 87 ms 63052 KB Output is correct
7 Correct 92 ms 63004 KB Output is correct
8 Correct 94 ms 63040 KB Output is correct
9 Correct 100 ms 62984 KB Output is correct
10 Correct 104 ms 63008 KB Output is correct
11 Execution timed out 2079 ms 84728 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 63028 KB Output is correct
2 Correct 88 ms 62960 KB Output is correct
3 Correct 99 ms 63052 KB Output is correct
4 Correct 104 ms 63036 KB Output is correct
5 Correct 93 ms 63160 KB Output is correct
6 Correct 87 ms 63052 KB Output is correct
7 Correct 92 ms 63004 KB Output is correct
8 Correct 94 ms 63040 KB Output is correct
9 Correct 100 ms 62984 KB Output is correct
10 Correct 104 ms 63008 KB Output is correct
11 Execution timed out 2079 ms 84728 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 63028 KB Output is correct
2 Correct 88 ms 62960 KB Output is correct
3 Correct 99 ms 63052 KB Output is correct
4 Correct 104 ms 63036 KB Output is correct
5 Correct 93 ms 63160 KB Output is correct
6 Correct 87 ms 63052 KB Output is correct
7 Correct 92 ms 63004 KB Output is correct
8 Correct 94 ms 63040 KB Output is correct
9 Correct 100 ms 62984 KB Output is correct
10 Correct 104 ms 63008 KB Output is correct
11 Execution timed out 2079 ms 84728 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 63028 KB Output is correct
2 Correct 88 ms 62960 KB Output is correct
3 Correct 99 ms 63052 KB Output is correct
4 Correct 104 ms 63036 KB Output is correct
5 Correct 93 ms 63160 KB Output is correct
6 Correct 87 ms 63052 KB Output is correct
7 Correct 92 ms 63004 KB Output is correct
8 Correct 94 ms 63040 KB Output is correct
9 Correct 100 ms 62984 KB Output is correct
10 Correct 104 ms 63008 KB Output is correct
11 Execution timed out 2079 ms 84728 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 62972 KB Output is correct
2 Correct 89 ms 62980 KB Output is correct
3 Correct 89 ms 62976 KB Output is correct
4 Correct 102 ms 63052 KB Output is correct
5 Correct 89 ms 63056 KB Output is correct
6 Correct 90 ms 62956 KB Output is correct
7 Correct 92 ms 62992 KB Output is correct
8 Correct 102 ms 62952 KB Output is correct
9 Correct 95 ms 63060 KB Output is correct
10 Correct 89 ms 62936 KB Output is correct
11 Correct 89 ms 62992 KB Output is correct
12 Correct 95 ms 62936 KB Output is correct
13 Correct 97 ms 62964 KB Output is correct
14 Correct 96 ms 63076 KB Output is correct
15 Correct 90 ms 63100 KB Output is correct
16 Correct 93 ms 63132 KB Output is correct
17 Runtime error 159 ms 127792 KB Execution killed with signal 6
18 Halted 0 ms 0 KB -