Submission #911143

# Submission time Handle Problem Language Result Execution time Memory
911143 2024-01-18T13:37:01 Z anarch_y Monkey and Apple-trees (IZhO12_apple) C++17
100 / 100
385 ms 203016 KB
#include <bits/stdc++.h>
using namespace std;
#define all(x) begin(x), end(x)
#define sz(x) (int)x.size()
#define pb push_back
#define int long long
 
const int maxn = 1e9;
 
struct Node{
    int value, lzSet;
    Node *left, *right;
    Node(int v){
        value = v; lzSet = -1;
        left = right = nullptr;
    }
};
 
struct DynamicTree{
    int len;
    Node *root;
    
    DynamicTree(int N){
        int p = ceil(log2(N));
        len = (1<<p);
        root = new Node(0);
    }
 
    void pushup(Node *k){
        int sum = 0;
        if(k->left != nullptr) sum += k->left->value;
        if(k->right != nullptr) sum += k->right->value;
        k->value = sum;
    }
 
    void pushdown(Node *k, int x, int y){
        int v = k->lzSet;
        int d = (x+y)/2;
        if(v != -1){
            if(k->left == nullptr) k->left = new Node(0);
            if(k->right == nullptr) k->right = new Node(0);
 
            k->left->lzSet = v;
            k->right->lzSet = v;
 
            k->left->value = (d-x+1)*v;
            k->right->value = (y-d)*v;
            k->lzSet = -1;
        }
    }
 
    Node* update(int a, int b, int v, Node *k, int x, int y){
        if(b < x or a > y) return k;
        if(k == nullptr) k = new Node(0);
        if(a <= x and y <= b){
            k->value = (y-x+1)*v;
            k->lzSet = v;
            return k;
        }
        pushdown(k, x, y);
        int d = (x+y)/2;
        k->left = update(a, b, v, k->left, x, d);
        k->right = update(a, b, v, k->right, d+1, y);
        pushup(k);
        return k;
    }
 
    void update(int a, int b, int v){
        root = update(a, b, v, root, 0, len-1);
    }
 
    int query(int a, int b, Node *k, int x, int y){
        if(b < x or a > y) return 0LL;
        if(k == nullptr) return 0LL;
        if(a <= x and y <= b) return k->value;
        pushdown(k, x, y);
        int d = (x+y)/2;
        int s1 = query(a, b, k->left, x, d);
        int s2 = query(a, b, k->right, d+1, y);
        return s1+s2;
    }
 
    int query(int a, int b){
        return query(a, b, root, 0, len-1);
    }
};
 
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
    int M; cin >> M;
    DynamicTree dseg(maxn);
    
    int C = 0;
    while(M--){
        int op; cin >> op;
        if(op == 2){
            int a, b; cin >> a >> b; a--; b--;
            dseg.update(a+C, b+C, 1);
        }
        else{
            int a, b; cin >> a >> b; a--; b--;
            int ans = dseg.query(a+C, b+C);
            C = ans;
            cout << ans << "\n";
        }
    }
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 10 ms 4956 KB Output is correct
5 Correct 12 ms 5780 KB Output is correct
6 Correct 12 ms 5724 KB Output is correct
7 Correct 12 ms 5724 KB Output is correct
8 Correct 107 ms 42852 KB Output is correct
9 Correct 254 ms 76796 KB Output is correct
10 Correct 238 ms 82028 KB Output is correct
11 Correct 243 ms 88124 KB Output is correct
12 Correct 259 ms 90752 KB Output is correct
13 Correct 215 ms 107608 KB Output is correct
14 Correct 214 ms 108628 KB Output is correct
15 Correct 374 ms 196592 KB Output is correct
16 Correct 362 ms 198148 KB Output is correct
17 Correct 219 ms 112208 KB Output is correct
18 Correct 252 ms 112180 KB Output is correct
19 Correct 357 ms 202740 KB Output is correct
20 Correct 385 ms 203016 KB Output is correct