|
|
|
|
|
#include <iostream>
|
|
|
|
|
|
using namespace std;
|
|
|
|
|
|
struct Line {
|
|
|
|
|
|
int left, right, count;
|
|
|
|
|
|
Line *leftChild, *rightChild;
|
|
|
|
|
|
Line(int l, int r): left(l), right(r) {}
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//<2F><><EFBFBD><EFBFBD>һ<EFBFBD>ÿ<EFBFBD><C3BF>߶<EFBFBD><DFB6><EFBFBD>
|
|
|
|
|
|
void createTree(Line *root) {
|
|
|
|
|
|
int left = root->left;
|
|
|
|
|
|
int right = root->right;
|
|
|
|
|
|
if (left < right) {
|
|
|
|
|
|
int mid = (left + right) / 2;
|
|
|
|
|
|
Line *lc = new Line(left, mid);
|
|
|
|
|
|
Line *rc = new Line(mid + 1, right);
|
|
|
|
|
|
root->leftChild = lc;
|
|
|
|
|
|
root->rightChild = rc;
|
|
|
|
|
|
createTree(lc);
|
|
|
|
|
|
createTree(rc);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//<2F><><EFBFBD>߶<EFBFBD>[l, r]<5D>ָ<EFBFBD>
|
|
|
|
|
|
void insertLine(Line *root, int l, int r) {
|
|
|
|
|
|
cout << l << " " << r << endl;
|
|
|
|
|
|
cout << root->left << " " << root->right << endl << endl;
|
|
|
|
|
|
if (l == root->left && r == root->right) {
|
|
|
|
|
|
root->count += 1;
|
|
|
|
|
|
} else if (l <= r) {
|
|
|
|
|
|
int rmid = (root->left + root->right) / 2;
|
|
|
|
|
|
if (r <= rmid) {
|
|
|
|
|
|
insertLine(root->leftChild, l, r);
|
|
|
|
|
|
} else if (l >= rmid + 1) {
|
|
|
|
|
|
insertLine(root->rightChild, l, r);
|
|
|
|
|
|
} else {
|
|
|
|
|
|
int mid = (l + r) / 2;
|
|
|
|
|
|
insertLine(root->leftChild, l, mid);
|
|
|
|
|
|
insertLine(root->rightChild, mid + 1, r);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
|
|
|
|
|
|
void inOrder(Line* root) {
|
|
|
|
|
|
if (root != NULL) {
|
|
|
|
|
|
inOrder(root->leftChild);
|
|
|
|
|
|
printf("[%d, %d], %d\n", root->left, root->right, root->count);
|
|
|
|
|
|
inOrder(root->rightChild);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//<2F><>ȡֵn<D6B5><6E><EFBFBD>߶<EFBFBD><DFB6>ϳ<EFBFBD><CFB3>ֵĴ<D6B5><C4B4><EFBFBD>
|
|
|
|
|
|
int getCount(Line* root, int n) {
|
|
|
|
|
|
int c = 0;
|
|
|
|
|
|
if (root->left <= n&&n <= root->right)
|
|
|
|
|
|
c += root->count;
|
|
|
|
|
|
if (root->left == root->right)
|
|
|
|
|
|
return c;
|
|
|
|
|
|
int mid = (root->left + root->right) / 2;
|
|
|
|
|
|
if (n <= mid)
|
|
|
|
|
|
c += getCount(root->leftChild, n);
|
|
|
|
|
|
else
|
|
|
|
|
|
c += getCount(root->rightChild, n);
|
|
|
|
|
|
return c;
|
|
|
|
|
|
}
|
|
|
|
|
|
int main() {
|
|
|
|
|
|
int l[3] = {2, 4, 0};
|
|
|
|
|
|
int r[3] = {5, 6, 7};
|
|
|
|
|
|
int MIN = l[0];
|
|
|
|
|
|
int MAX = r[0];
|
|
|
|
|
|
for (int i = 1; i < 3; ++i) {
|
|
|
|
|
|
if (MIN > l[i]) MIN = l[i];
|
|
|
|
|
|
if (MAX < r[i]) MAX = r[i];
|
|
|
|
|
|
}
|
|
|
|
|
|
Line *root = new Line(MIN, MAX);
|
|
|
|
|
|
createTree(root);
|
|
|
|
|
|
for (int i = 0; i < 3; ++i) {
|
|
|
|
|
|
insertLine(root, l[i], r[i]);
|
|
|
|
|
|
}
|
|
|
|
|
|
inOrder(root);
|
|
|
|
|
|
int N;
|
|
|
|
|
|
while (cin >> N) {
|
|
|
|
|
|
cout << getCount(root, N) << endl;
|
|
|
|
|
|
}
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
