oj.uz

Submission #641036

# Submission time Handle Problem Language Result Execution time Memory
641036 2022-09-15T19:06:31 Z Alexandruabcde Weirdtree (RMI21_weirdtree) C++14
21 / 100
 2000 ms 35728 KB 
#include "weirdtree.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long LL;
constexpr int NMAX = 3e5 + 5;

int Size;

struct Node {
   Node *Left, *Right;

   LL sum;
   int Max;
   int freq;
   int Second_Max;

   int lazy_set;

   Node (int value = 0) {
      Left = Right = nullptr;
      sum = value;
      Max = value;
      freq = 1;
      Second_Max = -1;
      lazy_set = -1;
   }
};

void JoinSons (Node *Tree) {
   Tree->sum = Tree->Left->sum + Tree->Right->sum;

   if (Tree->Left->Max == Tree->Right->Max) {
      Tree->Max = Tree->Left->Max;
      Tree->freq = Tree->Left->freq + Tree->Right->freq;

      Tree->Second_Max = max(Tree->Left->Second_Max, Tree->Right->Second_Max);
   }
   else if (Tree->Left->Max > Tree->Right->Max) {
      Tree->Max = Tree->Left->Max;
      Tree->freq = Tree->Left->freq;

      Tree->Second_Max = max(Tree->Left->Second_Max, Tree->Right->Max);
   }
   else {
      Tree->Max = Tree->Right->Max;
      Tree->freq = Tree->Right->freq;

      Tree->Second_Max = max(Tree->Left->Max, Tree->Right->Second_Max);
   }
}

Node JoinNodes (Node a, Node b) {
   Node ans;

   ans.lazy_set = -1;
   ans.sum = a.sum + b.sum;

   if (a.Max == b.Max) {
      ans.Max = a.Max;
      ans.freq = a.freq + b.freq;

      ans.Second_Max = max(a.Second_Max, b.Second_Max);
   }
   else if (a.Max < b.Max) {
      ans.Max = b.Max;
      ans.freq = b.freq;

      ans.Second_Max = max(a.Max, b.Second_Max);
   }
   else {
      ans.Max = a.Max;
      ans.freq = a.freq;

      ans.Second_Max = max(a.Second_Max, b.Max);
   }

   return ans;
}

void Init (Node *Tree, int a, int b) {
   if (a == b) return;

   int mij = (a + b) / 2;

   Tree->Left = new Node;
   Tree->Right = new Node;

   Init(Tree->Left, a, mij);
   Init(Tree->Right, mij+1, b);
}

void Change_Value (Node *Tree, int lazy) {
   if (Tree->Max < lazy) return;

   Tree->sum -= 1LL * Tree->Max * Tree->freq;
   Tree->Max = lazy;
   Tree->sum += 1LL * Tree->Max * Tree->freq;

   Tree->lazy_set = lazy;
}

void Propag (Node *Tree, int a, int b) {
   if (a == b) return;

   if (Tree->lazy_set == -1) return;

   Change_Value(Tree->Left, Tree->lazy_set);
   Change_Value(Tree->Right, Tree->lazy_set);

   Tree->lazy_set = -1;
}

void Set_Value (Node *Tree, int a, int b, int poz, int val) {
   Propag(Tree, a, b);
   if (a == b) {
      Tree->Max = val;
      Tree->freq = 1;

      Tree->sum = val;

      return;
   }

   int mij = (a + b) / 2;

   if (poz <= mij) Set_Value(Tree->Left, a, mij, poz, val);
   else Set_Value(Tree->Right, mij+1, b, poz, val);

   JoinSons(Tree);
}

void UpdateMinimal (Node *Tree, int a, int b, int ua, int ub, int val) {
   Propag(Tree, a, b);

   if (Tree->Max < val) return;

   if (ua <= a && b <= ub) {
      if (Tree->Second_Max < val && val <= Tree->Max) {
         Change_Value(Tree, val);

         Propag(Tree, a, b);
         return;
      }
   }

   int mij = (a + b) / 2;

   if (ua <= mij) UpdateMinimal(Tree->Left, a, mij, ua, ub, val);
   if (mij < ub) UpdateMinimal(Tree->Right, mij+1, b, ua, ub, val);

   JoinSons(Tree);
}

void Update (Node *Tree, int a, int b, int ua, int ub, int &cnt, int val) {
   if (Tree == nullptr) return;
   if (Tree->Max < val) return;
   if (cnt == 0) return;

   Propag(Tree, a, b);

   if (ua <= a && b <= ub) {
      if (Tree->Second_Max < val && val < Tree->Max && Tree->freq <= cnt) {
         cnt -= Tree->freq;
         Change_Value(Tree, val);

         Propag(Tree, a, b);
         return;
      }
   }

   if (a == b) return;

   int mij = (a + b) / 2;

   if (ua <= mij) Update(Tree->Left, a, mij, ua, ub, cnt, val);
   if (mij < ub) Update(Tree->Right, mij+1, b, ua, ub, cnt, val);

   JoinSons(Tree);
}

Node FindSegment (Node *Tree, int a, int b, int qa, int qb) {
   Propag(Tree, a, b);
   if (qa <= a && b <= qb) return *Tree;

   int mij = (a + b) / 2;
   Node st, dr;

   if (qa <= mij && mij < qb)
      return JoinNodes(FindSegment(Tree->Left, a, mij, qa, qb), FindSegment(Tree->Right, mij+1, b, qa, qb));
   else if (qa <= mij) return FindSegment(Tree->Left, a, mij, qa, qb);
   else return FindSegment(Tree->Right, mij+1, b, qa, qb);
}

LL Answer (Node *Tree, int a, int b, int qa, int qb) {
   Propag(Tree, a, b);

   if (qa <= a && b <= qb) return Tree->sum;

   int mij = (a + b) / 2;
   LL ans_st = 0, ans_dr = 0;

   if (qa <= mij) ans_st = Answer(Tree->Left, a, mij, qa, qb);
   if (mij < qb) ans_dr = Answer(Tree->Right, mij+1, b, qa, qb);

   return ans_st + ans_dr;
}

Node *SegTree = new Node;

void initialise(int N, int Q, int h[]) {
   Size = N;
   Init(SegTree, 1, N);

   for (int i = 1; i <= N; ++ i )
      Set_Value(SegTree, 1, N, i, h[i]);
}

void cut(int l, int r, int k) {
   Node value = FindSegment(SegTree, 1, Size, l, r);

   while (value.Max > 0 && 1LL * value.freq * (value.Max - max(0, value.Second_Max)) <= 1LL * k) {
      UpdateMinimal(SegTree, 1, Size, l, r, max(0,value.Second_Max));

      k -= 1LL * value.freq * (value.Max - max(0, value.Second_Max));

      value = FindSegment(SegTree, 1, Size, l, r);
   }

   if (value.Max > 0) {
      int cat_scad = k / value.freq;

      k = k % value.freq;

      UpdateMinimal(SegTree, 1, Size, l, r, max(0, value.Max - cat_scad));

      value.Max -= cat_scad;
      if (value.Max > 0) Update(SegTree, 1, Size, l, r, k, value.Max - 1);
   }
}

void magic(int i, int x) {
   Set_Value(SegTree, 1, Size, i, x);
}

long long int inspect(int l, int r) {
   return Answer(SegTree, 1, Size, l, r);
}

/*
3 4
1 2 3
1 1 3 2
2 1 1000
1 1 3 3
3 1 3
*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 352 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 352 KB Output is correct
3 Correct 66 ms 10116 KB Output is correct
4 Correct 122 ms 9996 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct
3 Correct 1191 ms 33788 KB Output is correct
4 Correct 466 ms 35728 KB Output is correct
5 Correct 1384 ms 34408 KB Output is correct
6 Correct 427 ms 34012 KB Output is correct
7 Correct 22 ms 10188 KB Output is correct
8 Execution timed out 2068 ms 9340 KB Time limit exceeded
9 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 10188 KB Output is correct
2 Execution timed out 2068 ms 9340 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 352 KB Output is correct
3 Correct 66 ms 10116 KB Output is correct
4 Correct 122 ms 9996 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 22 ms 10188 KB Output is correct
8 Execution timed out 2068 ms 9340 KB Time limit exceeded
9 Halted 0 ms 0 KB -

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 352 KB Output is correct
3 Correct 66 ms 10116 KB Output is correct
4 Correct 122 ms 9996 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 1191 ms 33788 KB Output is correct
8 Correct 466 ms 35728 KB Output is correct
9 Correct 1384 ms 34408 KB Output is correct
10 Correct 427 ms 34012 KB Output is correct
11 Correct 22 ms 10188 KB Output is correct
12 Execution timed out 2068 ms 9340 KB Time limit exceeded
13 Halted 0 ms 0 KB -