Submission #37729

#	Time	Username	Problem	Language	Result	Execution time	Memory
37729		14kg	Monkey and Apple-trees (IZhO12_apple)	C++11	100 / 100	73 ms	1112 KiB

apple

#include <stdio.h>
#include <algorithm>
#define NN 1073741824
#define min2(x,y) (x<y?x:y)
#define max2(x,y) (x>y?x:y)

using namespace std;
struct TREE {
	int num;
	bool check;
	TREE *left, *right;
} *top;

void check_node(TREE *node, int len) {
	if (node->left == NULL) {
		node->left = (TREE*)malloc(sizeof(TREE));
		node->left->left = node->left->right = NULL;
		node->left->num = node->check ? len : 0;
		node->left->check = node->check;
	}
	if (node->right == NULL) {
		node->right = (TREE*)malloc(sizeof(TREE));
		node->right->left = node->right->right = NULL;
		node->right->num = node->check ? len : 0;
		node->right->check = node->check;
	}
}
int f(TREE *node, int l, int r, int x, int y) {
	int mid = (l + r) / 2;

	if (x <= l && r <= y) return node->num;
	if (r < x || y < l) return 0;
	if (node->check) return min2(y, r) - max2(l, x) + 1;

	check_node(node, mid - l + 1);
	return f(node->left, l, mid, x, y) + f(node->right, mid + 1, r, x, y);
}
void Push(TREE *node, int l, int r, int x, int y) {
	int mid = (l + r) / 2;

	if (node->check) return;
	if (x <= l && r <= y) {
		node->num = r - l + 1;
		node->check = true;
		node->left = node->right = NULL;
		return;
	}
	if (r < x || y < l) return;

	check_node(node, mid - l + 1);
	Push(node->left, l, mid, x, y), Push(node->right, mid + 1, r, x, y);
	node->num = node->left->num + node->right->num;
}
int main() {
	int k, s, x, y, C = 0;

	top= (TREE*)malloc(sizeof(TREE));
	top->check = false, top->num = 0;
	top->left = top->right = NULL;

	scanf("%d", &k);
	while (k--) {
		scanf("%d %d %d", &s, &x, &y);
		x += C, y += C;
		if (s == 1) {
			C = f(top, 1, NN, x, y);
			printf("%d\n", C);
		}
		else Push(top, 1, NN, x, y);
	}
}

Compilation message (stderr)

apple.cpp: In function 'int main()':
apple.cpp:61:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &k);
                 ^
apple.cpp:63:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &s, &x, &y);
                                ^

• Subtask 1: 100 / 100