oj.uz

Submission #762157

# Submission time Handle Problem Language Result Execution time Memory
762157 2023-06-21T02:05:13 Z hazzle Road Construction (JOI21_road_construction) C++17
100 / 100
 2744 ms 27004 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("avx2")

using namespace std;
using namespace __gnu_pbds;

#define fi first
#define se second
#define all(m) (m).begin(), (m).end()
#define rall(m) (m).rbegin(), (m).rend()
#define vec vector
#define sz(a) (int) (a).size()
#define mpp make_pair
#define mtt make_tuple

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef pair <ll, ll> pll;
typedef pair <int, int> pii;
typedef tuple <int, int, int> tui;

template <typename T>
using prq = priority_queue <T>;

template <typename T>
using pgq = priority_queue <T, vec <T>, greater <T>>;

template <typename T> bool umin(T &a, T b) { return a > b ? a = b, 1 : 0; }
template <typename T> bool umax(T &a, T b) { return a < b ? a = b, 1 : 0; }

inline int solve(){
      int n, k;
      cin >> n >> k;
      vec <pii> a(n);
      for (int i = 0; i < n; ++i){
            int x, y;
            cin >> x >> y;
            a[i] = {x + y, x - y};
      }
      sort(all(a));
      vec <ll> res;
      auto work = [&](ll d, bool fl){
            vec <ll> ans;
            set <pll> s;
            for (int r = 0, l = 0; r < n; ++r){
                  while(a[l].fi + d < a[r].fi){
                        s.erase({a[l].se, a[l].fi}), ++l;
                  }
                  auto [x, y] = a[r];
                  auto it = s.lower_bound({y - d, -3e9});
                  while(sz(ans) < k){
                        if (it == s.end()) break;
                        auto [cy, cx] = *it;
                        if (y + d < cy) break;
                        ans.push_back(max(abs(x - cx), abs(y - cy)));
                        ++it;
                  }
                  s.insert({a[r].se, a[r].fi});
            }
            if (fl){
                  while(sz(ans) < k){
                        ans.push_back(d + 1);
                  }
                  res = ans;
            }
            return sz(ans) >= k;
      };
      ll len = 0;
      for (int i = 31; ~i; --i){
            len += 1LL << i;
            if (work(len, 0)){
                  len -= 1LL << i;
            }
      }
      work(len, 1);
      sort(all(res));
      for (auto &i: res){
            cout << i << "\n";
      }
      return 0;
}

inline void precalc(){}

signed main(){
//      ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
      int tst = 1; //cin >> tst;
      precalc();
      while(tst--) solve();
      return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 117 ms 6812 KB Output is correct
2 Correct 135 ms 6876 KB Output is correct
3 Correct 111 ms 6972 KB Output is correct
4 Correct 112 ms 7012 KB Output is correct
5 Correct 114 ms 5668 KB Output is correct
6 Correct 4 ms 340 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 923 ms 19768 KB Output is correct
2 Correct 923 ms 19780 KB Output is correct
3 Correct 83 ms 8708 KB Output is correct
4 Correct 869 ms 19780 KB Output is correct
5 Correct 1022 ms 21492 KB Output is correct
6 Correct 938 ms 21496 KB Output is correct
7 Correct 924 ms 20348 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1825 ms 14828 KB Output is correct
2 Correct 1852 ms 19524 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 812 ms 20684 KB Output is correct
5 Correct 1808 ms 23232 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1825 ms 14828 KB Output is correct
2 Correct 1852 ms 19524 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 812 ms 20684 KB Output is correct
5 Correct 1808 ms 23232 KB Output is correct
6 Correct 1959 ms 19516 KB Output is correct
7 Correct 1865 ms 19656 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 0 ms 304 KB Output is correct
10 Correct 1897 ms 19628 KB Output is correct
11 Correct 889 ms 20812 KB Output is correct
12 Correct 1754 ms 23116 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 117 ms 6812 KB Output is correct
2 Correct 135 ms 6876 KB Output is correct
3 Correct 111 ms 6972 KB Output is correct
4 Correct 112 ms 7012 KB Output is correct
5 Correct 114 ms 5668 KB Output is correct
6 Correct 4 ms 340 KB Output is correct
7 Correct 1112 ms 10256 KB Output is correct
8 Correct 1085 ms 12228 KB Output is correct
9 Correct 109 ms 6936 KB Output is correct
10 Correct 823 ms 10004 KB Output is correct
11 Correct 657 ms 10020 KB Output is correct
12 Correct 562 ms 13072 KB Output is correct
13 Correct 764 ms 11424 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 117 ms 6812 KB Output is correct
2 Correct 135 ms 6876 KB Output is correct
3 Correct 111 ms 6972 KB Output is correct
4 Correct 112 ms 7012 KB Output is correct
5 Correct 114 ms 5668 KB Output is correct
6 Correct 4 ms 340 KB Output is correct
7 Correct 923 ms 19768 KB Output is correct
8 Correct 923 ms 19780 KB Output is correct
9 Correct 83 ms 8708 KB Output is correct
10 Correct 869 ms 19780 KB Output is correct
11 Correct 1022 ms 21492 KB Output is correct
12 Correct 938 ms 21496 KB Output is correct
13 Correct 924 ms 20348 KB Output is correct
14 Correct 1825 ms 14828 KB Output is correct
15 Correct 1852 ms 19524 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 812 ms 20684 KB Output is correct
18 Correct 1808 ms 23232 KB Output is correct
19 Correct 1959 ms 19516 KB Output is correct
20 Correct 1865 ms 19656 KB Output is correct
21 Correct 1 ms 300 KB Output is correct
22 Correct 0 ms 304 KB Output is correct
23 Correct 1897 ms 19628 KB Output is correct
24 Correct 889 ms 20812 KB Output is correct
25 Correct 1754 ms 23116 KB Output is correct
26 Correct 1112 ms 10256 KB Output is correct
27 Correct 1085 ms 12228 KB Output is correct
28 Correct 109 ms 6936 KB Output is correct
29 Correct 823 ms 10004 KB Output is correct
30 Correct 657 ms 10020 KB Output is correct
31 Correct 562 ms 13072 KB Output is correct
32 Correct 764 ms 11424 KB Output is correct
33 Correct 2744 ms 21500 KB Output is correct
34 Correct 2703 ms 21560 KB Output is correct
35 Correct 2156 ms 21544 KB Output is correct
36 Correct 1448 ms 27004 KB Output is correct
37 Correct 1427 ms 24936 KB Output is correct
38 Correct 1790 ms 25112 KB Output is correct