Submission #1019162

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1019162	2024-07-10T14:24:20 Z	blackslex	Monkey and Apple-trees (IZhO12_apple)	C++17	100 / 100	408 ms	232560 KB

apple

#include<bits/stdc++.h>

using namespace std;

int q, rc, x, y, c;

struct node {
    int val;
    bool lz;
    node *l, *r;
    node() : val(val), l(nullptr), r(nullptr) {}
    node(int val) : val(val), l(nullptr), r(nullptr) {}
};

typedef node* pnode;
pnode rt = nullptr;

void push (int l, int r, pnode &cur) {
    if (!cur->lz) return;
    cur->val = r - l + 1;
    if (l < r) {
        if (!cur->l) cur->l = new node();
        if (!cur->r) cur->r = new node();
        cur->l->lz = cur->r->lz = 1;
    }
    cur->lz = 0;
}

void upd (int l, int r, pnode &cur, int tl, int tr) {
    if (!cur) cur = new node();
    push(l, r, cur);
    if (l > tr || r < tl) return;
    if (l >= tl && r <= tr) return cur->lz = 1, push(l, r, cur), void();
    int mid = (l + r) >> 1;
    upd(l, mid, cur->l, tl, tr);
    upd(mid + 1, r, cur->r, tl, tr);
    cur->val = (cur->l ? cur->l->val : 0) + (cur->r ? cur->r->val : 0);
}

int qr (int l, int r, pnode cur, int tl, int tr) {
    if (l > tr || r < tl || !cur) return 0;
    push(l, r, cur);
    if (l >= tl && r <= tr) return cur->val;
    int mid = (l + r) >> 1;
    return qr(l, mid, cur->l, tl, tr) + qr(mid + 1, r, cur->r, tl, tr);
}

int main() {
    scanf("%d", &q);
    while (q--) {
        scanf("%d %d %d", &rc, &x, &y);
        if (rc == 2) upd(-1e9, 1e9, rt, x + c, y + c);
        else printf("%d\n", c = qr(-1e9, 1e9, rt, x + c, y + c));
    }
}

Compilation message

apple.cpp: In constructor 'node::node()':
apple.cpp:11:5: warning: 'node::val' is initialized with itself [-Winit-self]
   11 |     node() : val(val), l(nullptr), r(nullptr) {}
      |     ^~~~
apple.cpp: In function 'int main()':
apple.cpp:49:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
apple.cpp:51:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         scanf("%d %d %d", &rc, &x, &y);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
apple.cpp: In constructor 'node::node()':
apple.cpp:11:18: warning: '*<unknown>.node::val' is used uninitialized in this function [-Wuninitialized]
   11 |     node() : val(val), l(nullptr), r(nullptr) {}
      |                  ^~~

Subtask #1

100.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	14 ms	5416 KB	Output is correct
5	Correct	15 ms	6492 KB	Output is correct
6	Correct	16 ms	6236 KB	Output is correct
7	Correct	16 ms	6492 KB	Output is correct
8	Correct	110 ms	47356 KB	Output is correct
9	Correct	220 ms	81072 KB	Output is correct
10	Correct	279 ms	90292 KB	Output is correct
11	Correct	260 ms	97684 KB	Output is correct
12	Correct	266 ms	100820 KB	Output is correct
13	Correct	262 ms	123260 KB	Output is correct
14	Correct	230 ms	124752 KB	Output is correct
15	Correct	408 ms	225872 KB	Output is correct
16	Correct	402 ms	227468 KB	Output is correct
17	Correct	245 ms	129036 KB	Output is correct
18	Correct	248 ms	128984 KB	Output is correct
19	Correct	406 ms	232536 KB	Output is correct
20	Correct	406 ms	232560 KB	Output is correct