Submission #1088256

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088256		rayan_bd	Monkey and Apple-trees (IZhO12_apple)	C++17	0 / 100	2025 ms	344 KiB

apple

#include <bits/stdc++.h>

using namespace std;

#define ll long long


struct SegTree {
    struct Node {
        ll val = 0, lazy = 0;
        Node* left = NULL;
        Node* right = NULL;
    };
    
    typedef Node* root;
    root R = NULL;
    int N;

    SegTree(int n) {
        N = n;
        R = new Node();
    }

    void push(root nd, ll l, ll r) {
        if (nd == NULL || nd->lazy == 0) return;
        nd->val = (r - l + 1) * nd->lazy;
        if (r - l > 0) {
            if (nd->left == NULL) nd->left = new Node;
            if (nd->right == NULL) nd->right = new Node;
            nd->left->lazy = nd->lazy;
            nd->right->lazy = nd->lazy;
        }
        nd->lazy = 0; 
    }

    void update(root nd, ll start, ll end, ll l, ll r) {
        if (nd == NULL) return;
        push(nd, start, end);
        if (start > r || end < l) return;
        if (start >= l && end <= r) {
            nd->lazy = 1; 
            push(nd, start, end); 
            return;
        }
        ll mid = start + (end - start) / 2;
        if (nd->left == NULL) nd->left = new Node;
        if (nd->right == NULL) nd->right = new Node;
        update(nd->left, start, mid, l, r);
        update(nd->right, mid + 1, end, l, r);
        nd->val = (nd->left ? nd->left->val : 0) + (nd->right ? nd->right->val : 0);
    }

    ll qry(root nd, ll start, ll end, ll l, ll r) {
        if (nd == NULL) return 0;
        push(nd, start, end);
        if (start > r || end < l) return 0;
        if (start >= l && end <= r) return nd->val;
        ll mid = start + (end - start) / 2;
        return qry(nd->left, start, mid, l, r) + qry(nd->right, mid + 1, end, l, r);
    }

    void update(ll l, ll r) {
        update(this->R, 0, N, l, r);
    }

    ll qry(ll l, ll r) {
        return qry(this->R, 0, N, l, r);
    }
};

int main() {
    
    #ifndef ONLINE_JUDGE
    freopen("input.in","r",stdin);
    freopen("output.out","w",stdout);
    #endif

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    

    ll n,prev=0,e,l,r;cin>>n;
    SegTree seg_tree(1e9+100);

    while(n--){
    	cin>>e>>l>>r;
    	l+=prev;
    	r+=prev;
    	if(e==1){
    		prev=seg_tree.qry(l,r);
    		cout<<prev<<'\n';
    	}else if(e==2){
    		seg_tree.update(l,r);
    	}
    }

    return 0;
}

Compilation message (stderr)

apple.cpp: In function 'int main()':
apple.cpp:74:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |     freopen("input.in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
apple.cpp:75:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |     freopen("output.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100