rofn123

#include #include #include using namespace std; //입력을 받을 배열, merge sort tree을 구성할 vector들 int arr[300001]; vector tree[1200001]; void update(int s, int e, int node, int index, int val) { //merge sort tree 수정 if(s > index || e < index) return; tree[node].push_back(val); if(s==e) return; int m = (s+e)/2; update(s, m, node*2, index, val); update(m+1, e, node*2+1, index, val); } int find(int s, int ..

#include #include #include using namespace std; int arr[100001]; vector tree[400001]; void update(int s, int e, int node, int index, int val) { //merge sort tree 수정 if(s > index || e < index) return; tree[node].push_back(val); if(s == e) return; int m = (s+e)/2; update(s, m, node*2, index, val); update(m+1, e, node*2+1, index, val); } int find(int s, int e, int node, int l, int r, int key) { //m..