oj.uz

Submission #986275

# Submission time Handle Problem Language Result Execution time Memory
986275 2024-05-20T08:14:13 Z vjudge1 Interval Collection (CCO20_day2problem2) C++17
3 / 25
 7000 ms 1108 KB 
#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
using namespace std;

using ll = long long;
using ld = long double;

//#define int ll
#define sz(x) ((int)(x).size())

using pii = pair<int,int>;
using tii = tuple<int,int,int>;

const int inf = 1e9 + 9;
const int nmax = 1e6 + 1;

template<typename T>
struct AINT {
   vector<T> aint;
   int n;
   void init(int n_) {
      n = n_;
      aint.resize(n * 2 + 5, T());
   }
   template<class CB> void walk(CB&& cb) { walk(cb, 1, n); }
   template<class CB> void walk(CB&& cb, int l, int r) { walk(cb, l, r, 1, 1, n); }
   template<class CB> void walk(CB&& cb, int l, int r, int node, int cl, int cr) { 
      if(cr < l || r < cl) return;
      if(l <= cl && cr <= r && !cb(aint[node], cl, cr)) return;
      int mid = (cl + cr) >> 1, L = node + 1, R = node + (mid - cl + 1) * 2;
      walk(cb, l, r, L, cl, mid);
      walk(cb, l, r, R, mid + 1, cr);
      aint[node].pull(aint[L], aint[R]);
   }
};

namespace DS {
   auto byL = [](pii a, pii b) { return a.first < b.first || (a.first == b.first && a.second > b.second); };
   auto byR = [](pii a, pii b) { return a.second < b.second || (a.second == b.second && a.first > b.first); };
   multiset<pii, decltype(byL)> sortL(byL);
   multiset<pii, decltype(byR)> sortR(byR);
   
   struct segm {
      int l, r;
      segm(): l(-inf * 2), r(inf * 2) {;}
      void pull(const segm& a, const segm& b) { l = max(a.l, b.l); r = min(b.r, a.r); }
   };
   
   AINT<segm> aint;
   vector<int> ans;
   vector<pair<int, segm>> rollback;
   vector<pii> efectiv;
   
   void insert(int l, int r) {
      efectiv.emplace_back(l, r);
      efectiv.emplace_back(-1, -1);
      
      sortL.insert(pii{l, r});
      sortR.insert(pii{l, r});
      
      ans.push_back(ans.empty()? inf : ans.back());
      aint.walk([&](segm& val, int cl, int cr) {
         //cerr << cl << ' ' << cr << '\t' << val.l << ' ' << val.r << '\t' << l << ' ' << r << '\n';
         ans.back() = min(ans.back(), r - val.l); return 0;
      }, 1, l);
      aint.walk([&](segm& val, int cl, int cr) {
         ans.back() = min(ans.back(), val.r - l); return 0;
      }, r, nmax);
      
      aint.walk([&](segm& val, int cl, int cr) {
         rollback.emplace_back(cl, val);
         val.r = min(val.r, r);
         return 0;
      }, l, l);
      aint.walk([&](segm& val, int cl, int cr) {
         rollback.emplace_back(cl, val);
         ans.emplace_back(ans.back());
         val.l = max(val.l, l);
         return 0;
      }, r, r);
      
      assert(ans.size() == rollback.size());
   }
   
   int time() { return sz(rollback); }
   void pop() {
      auto [l, r] = efectiv.back();
      if(l != -1 && r != -1) sortL.erase(sortL.find(pii{l, r})), sortR.erase(sortR.find(pii{l, r}));
      aint.walk([&](segm& val, int cl, int cr) {
         val = rollback.back().second;
         rollback.pop_back();
         ans.pop_back();
         return 0;
      }, rollback.back().first, rollback.back().first);
   }
   
   int query() {
      
      //for(auto [a, b] : sortL) cerr << a << ' ' << b << '\t';
      //cerr << "--\n";
      
      if(ans.empty() || ans.back() >= nmax + 5) {
         auto a = *sortL.rbegin(), b = *sortR.begin();
         return max(b.second, a.second) - min(b.first, a.first);
      }
      return ans.back();
   }
}


int started = 0;

struct memory {
   vector<pii> values;
   int enter_time;
   void pull(const memory& a, const memory& b) {
      if(!started) return;
      while(DS::time() > enter_time) DS::pop();
   }
};

signed main() {
   cin.tie(0) -> sync_with_stdio(0);
   int n;
   cin >> n;
   
   map<pii, vector<int>> still;
   vector<pii> segms;
   vector<pii> times;
   for(int i = 1; i <= n; i++) {
      char ch;
      cin >> ch;
      if(ch == 'A') {
         int l, r;
         cin >> l >> r;
         segms.emplace_back(l, r);
         times.emplace_back(i, n);
         still[pii{l, r}].emplace_back(sz(segms) - 1);
      }
      else {
         int l, r;
         cin >> l >> r;
         auto t = still[pii{l, r}].back();
         still[pii{l, r}].pop_back();
         segms[t] = pii{-1, -1};
      }
      
      int mn = inf, mn2 = inf;
      
      for(auto [a, b] : segms) {
         if(a == -1) continue;
         for(auto [c, d] : segms) {
            if(c == -1) continue;
            int diff = max(0, min(b, d) - max(a, c)), supra = max(b, d) - min(a, c);
            //cerr << diff << ' ' << 
            if(diff < mn) mn2 = inf, mn = diff;
            if(diff == mn) mn2 = min(mn2, supra);
         }
      }
      cout << mn2 << '\n';
   }
   
   
   return 0;
}

/**
      Istenem! Nu poate fi real.
-- Surse verificate
*/

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 348 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 47 ms 348 KB Output is correct
6 Correct 6 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 4 ms 348 KB Output is correct
9 Correct 71 ms 516 KB Output is correct
10 Correct 40 ms 512 KB Output is correct
11 Correct 35 ms 348 KB Output is correct
12 Correct 37 ms 348 KB Output is correct
13 Correct 96 ms 500 KB Output is correct
14 Correct 102 ms 504 KB Output is correct
15 Correct 86 ms 348 KB Output is correct
16 Correct 99 ms 744 KB Output is correct
17 Correct 51 ms 508 KB Output is correct
18 Correct 6 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 51 ms 496 KB Output is correct
22 Correct 7 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 79 ms 864 KB Output is correct
26 Correct 42 ms 496 KB Output is correct
27 Correct 35 ms 344 KB Output is correct
28 Correct 34 ms 348 KB Output is correct
29 Correct 101 ms 516 KB Output is correct
30 Correct 103 ms 512 KB Output is correct
31 Correct 95 ms 348 KB Output is correct
32 Correct 108 ms 500 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 408 KB Output is correct
41 Correct 30 ms 344 KB Output is correct
42 Correct 3 ms 348 KB Output is correct
43 Correct 1 ms 504 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 24 ms 504 KB Output is correct
46 Correct 2 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 35 ms 496 KB Output is correct
50 Correct 38 ms 344 KB Output is correct
51 Correct 36 ms 344 KB Output is correct
52 Correct 36 ms 488 KB Output is correct
53 Correct 35 ms 344 KB Output is correct
54 Correct 36 ms 344 KB Output is correct
55 Correct 35 ms 348 KB Output is correct
56 Correct 40 ms 344 KB Output is correct
57 Correct 35 ms 348 KB Output is correct
58 Correct 37 ms 348 KB Output is correct
59 Correct 91 ms 348 KB Output is correct
60 Correct 103 ms 344 KB Output is correct

Subtask #2
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 348 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 47 ms 348 KB Output is correct
6 Correct 6 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 4 ms 348 KB Output is correct
9 Correct 71 ms 516 KB Output is correct
10 Correct 40 ms 512 KB Output is correct
11 Correct 35 ms 348 KB Output is correct
12 Correct 37 ms 348 KB Output is correct
13 Correct 96 ms 500 KB Output is correct
14 Correct 102 ms 504 KB Output is correct
15 Correct 86 ms 348 KB Output is correct
16 Correct 99 ms 744 KB Output is correct
17 Correct 51 ms 508 KB Output is correct
18 Correct 6 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 51 ms 496 KB Output is correct
22 Correct 7 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 79 ms 864 KB Output is correct
26 Correct 42 ms 496 KB Output is correct
27 Correct 35 ms 344 KB Output is correct
28 Correct 34 ms 348 KB Output is correct
29 Correct 101 ms 516 KB Output is correct
30 Correct 103 ms 512 KB Output is correct
31 Correct 95 ms 348 KB Output is correct
32 Correct 108 ms 500 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 408 KB Output is correct
41 Correct 30 ms 344 KB Output is correct
42 Correct 3 ms 348 KB Output is correct
43 Correct 1 ms 504 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 24 ms 504 KB Output is correct
46 Correct 2 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 35 ms 496 KB Output is correct
50 Correct 38 ms 344 KB Output is correct
51 Correct 36 ms 344 KB Output is correct
52 Correct 36 ms 488 KB Output is correct
53 Correct 35 ms 344 KB Output is correct
54 Correct 36 ms 344 KB Output is correct
55 Correct 35 ms 348 KB Output is correct
56 Correct 40 ms 344 KB Output is correct
57 Correct 35 ms 348 KB Output is correct
58 Correct 37 ms 348 KB Output is correct
59 Correct 91 ms 348 KB Output is correct
60 Correct 103 ms 344 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Execution timed out 7052 ms 968 KB Time limit exceeded
65 Halted 0 ms 0 KB -

Subtask #3
0.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 348 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 47 ms 348 KB Output is correct
6 Correct 6 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 4 ms 348 KB Output is correct
9 Correct 71 ms 516 KB Output is correct
10 Correct 40 ms 512 KB Output is correct
11 Correct 35 ms 348 KB Output is correct
12 Correct 37 ms 348 KB Output is correct
13 Correct 96 ms 500 KB Output is correct
14 Correct 102 ms 504 KB Output is correct
15 Correct 86 ms 348 KB Output is correct
16 Correct 99 ms 744 KB Output is correct
17 Correct 51 ms 508 KB Output is correct
18 Correct 6 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 51 ms 496 KB Output is correct
22 Correct 7 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 79 ms 864 KB Output is correct
26 Correct 42 ms 496 KB Output is correct
27 Correct 35 ms 344 KB Output is correct
28 Correct 34 ms 348 KB Output is correct
29 Correct 101 ms 516 KB Output is correct
30 Correct 103 ms 512 KB Output is correct
31 Correct 95 ms 348 KB Output is correct
32 Correct 108 ms 500 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 408 KB Output is correct
41 Correct 30 ms 344 KB Output is correct
42 Correct 3 ms 348 KB Output is correct
43 Correct 1 ms 504 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 24 ms 504 KB Output is correct
46 Correct 2 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 35 ms 496 KB Output is correct
50 Correct 38 ms 344 KB Output is correct
51 Correct 36 ms 344 KB Output is correct
52 Correct 36 ms 488 KB Output is correct
53 Correct 35 ms 344 KB Output is correct
54 Correct 36 ms 344 KB Output is correct
55 Correct 35 ms 348 KB Output is correct
56 Correct 40 ms 344 KB Output is correct
57 Correct 35 ms 348 KB Output is correct
58 Correct 37 ms 348 KB Output is correct
59 Correct 91 ms 348 KB Output is correct
60 Correct 103 ms 344 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Execution timed out 7052 ms 968 KB Time limit exceeded
65 Halted 0 ms 0 KB -

Subtask #4
0.0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 7098 ms 1108 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 348 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 47 ms 348 KB Output is correct
6 Correct 6 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 4 ms 348 KB Output is correct
9 Correct 71 ms 516 KB Output is correct
10 Correct 40 ms 512 KB Output is correct
11 Correct 35 ms 348 KB Output is correct
12 Correct 37 ms 348 KB Output is correct
13 Correct 96 ms 500 KB Output is correct
14 Correct 102 ms 504 KB Output is correct
15 Correct 86 ms 348 KB Output is correct
16 Correct 99 ms 744 KB Output is correct
17 Correct 51 ms 508 KB Output is correct
18 Correct 6 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 51 ms 496 KB Output is correct
22 Correct 7 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 79 ms 864 KB Output is correct
26 Correct 42 ms 496 KB Output is correct
27 Correct 35 ms 344 KB Output is correct
28 Correct 34 ms 348 KB Output is correct
29 Correct 101 ms 516 KB Output is correct
30 Correct 103 ms 512 KB Output is correct
31 Correct 95 ms 348 KB Output is correct
32 Correct 108 ms 500 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 408 KB Output is correct
41 Correct 30 ms 344 KB Output is correct
42 Correct 3 ms 348 KB Output is correct
43 Correct 1 ms 504 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 24 ms 504 KB Output is correct
46 Correct 2 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 35 ms 496 KB Output is correct
50 Correct 38 ms 344 KB Output is correct
51 Correct 36 ms 344 KB Output is correct
52 Correct 36 ms 488 KB Output is correct
53 Correct 35 ms 344 KB Output is correct
54 Correct 36 ms 344 KB Output is correct
55 Correct 35 ms 348 KB Output is correct
56 Correct 40 ms 344 KB Output is correct
57 Correct 35 ms 348 KB Output is correct
58 Correct 37 ms 348 KB Output is correct
59 Correct 91 ms 348 KB Output is correct
60 Correct 103 ms 344 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Execution timed out 7052 ms 968 KB Time limit exceeded
65 Halted 0 ms 0 KB -