Submission #730938

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
730938	2023-04-26T16:12:13 Z	rainboy	Monkey and Apple-trees (IZhO12_apple)	C	100 / 100	48 ms	4096 KB

apple

#include <stdio.h>

#define N	100000

int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }

unsigned int X = 12345;

int rand_() {
	return (X *= 3) >> 1;
}

int zz[N + 1], ll[N + 1], rr[N + 1], xx[N + 1], yy[N + 1], sz[N + 1], u_, l_, r_;

int node(int x, int y) {
	static int _ = 1;

	zz[_] = rand_();
	xx[_] = x, yy[_] = y, sz[_] = yy[_] - xx[_];
	return _++;
}

void pul(int u) {
	sz[u] = sz[ll[u]] + (yy[u] - xx[u]) + sz[rr[u]];
}

void split_x(int u, int x) {
	if (u == 0) {
		u_ = l_ = r_ = 0;
		return;
	}
	if (xx[u] <= x) {
		split_x(rr[u], x);
		rr[u] = l_, l_ = u;
	} else {
		split_x(ll[u], x);
		ll[u] = r_, r_ = u;
	}
	pul(u);
}

void split_y(int u, int y) {
	if (u == 0) {
		u_ = l_ = r_ = 0;
		return;
	}
	if (yy[u] < y) {
		split_y(rr[u], y);
		rr[u] = l_, l_ = u;
	} else {
		split_y(ll[u], y);
		ll[u] = r_, r_ = u;
	}
	pul(u);
}

int merge(int u, int v) {
	if (u == 0)
		return v;
	if (v == 0)
		return u;
	if (zz[u] < zz[v]) {
		rr[u] = merge(rr[u], v), pul(u);
		return u;
	} else {
		ll[v] = merge(u, ll[v]), pul(v);
		return v;
	}
}

int first(int u) {
	return ll[u] == 0 ? u : first(ll[u]);
}

int last(int u) {
	return rr[u] == 0 ? u : last(rr[u]);
}

int main() {
	int n, c;

	scanf("%d", &n);
	c = 0;
	while (n--) {
		int t, x, y, l, u, r;

		scanf("%d%d%d", &t, &x, &y), x += c, y += c, x--;
		split_y(u_, x), l = l_;
		split_x(r_, y), u = l_, r = r_;
		if (t == 2)
			u = u == 0 ? node(x, y) : node(min(x, xx[first(u)]), max(y, yy[last(u)]));
		else
			printf("%d\n", c = u == 0 ? 0 : sz[u] - max(x - xx[first(u)], 0) - max(yy[last(u)] - y, 0));
		u_ = merge(merge(l, u), r);
	}
	return 0;
}

Compilation message

apple.c: In function 'main':
apple.c:83:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   83 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
apple.c:88:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   88 |   scanf("%d%d%d", &t, &x, &y), x += c, y += c, x--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

100.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	292 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	4 ms	596 KB	Output is correct
5	Correct	5 ms	560 KB	Output is correct
6	Correct	4 ms	572 KB	Output is correct
7	Correct	4 ms	596 KB	Output is correct
8	Correct	19 ms	1924 KB	Output is correct
9	Correct	37 ms	3544 KB	Output is correct
10	Correct	43 ms	3612 KB	Output is correct
11	Correct	39 ms	3528 KB	Output is correct
12	Correct	40 ms	3632 KB	Output is correct
13	Correct	41 ms	3916 KB	Output is correct
14	Correct	40 ms	4000 KB	Output is correct
15	Correct	40 ms	4004 KB	Output is correct
16	Correct	42 ms	4072 KB	Output is correct
17	Correct	48 ms	3996 KB	Output is correct
18	Correct	43 ms	3912 KB	Output is correct
19	Correct	45 ms	4088 KB	Output is correct
20	Correct	43 ms	4096 KB	Output is correct