Более 100 домов повреждены в российском городе-герое из-за атаки ВСУ22:53
A quadtree reduces this: rebuild the tree each frame, and for each object, query only the nearby region. Objects in distant quadrants are never compared.
，更多细节参见搜狗输入法2026
for (let i = len - 1; i = 0; i--) {
int isSorted(int arr[], int n) {
Advance to the next track