### Segment Trees, Tutorial, C++ Code and Applications

A segment tree is a heap-like data structure that can be used for making update/query operations upon array intervals in logarithmical time. We define the segment tree for the interval

the first node will hold the information for the interval

Code for creating a segment tree recursively: #include <iostream>#include <stdio.h>#include <stdlib.h>using namespace std;typedef struct segmentTreeNode* Node;struct segmentTreeNode {int low;int high;Node left;Node right;} segmentTreeNode;Node createSegmentTree(int low, int high);int main() { int N = 9;Node root=createSegmentTree(0,N-1);printf("%d %d",N, root->right->low);return 0;}

Node createSegmentT…

**[i, j]**in the following recursive manner:the first node will hold the information for the interval

**[i, j]**if i<j the left and right son will hold the information for the intervals**[i, (i+j)/2]**and**[(i+j)/2+1, j]**Notice that the height of a segment tree for an interval with**N**elements is**[logN] + 1**. Here is how a segment tree for the interval**[0, 9]**would look like:Code for creating a segment tree recursively: #include <iostream>#include <stdio.h>#include <stdlib.h>using namespace std;typedef struct segmentTreeNode* Node;struct segmentTreeNode {int low;int high;Node left;Node right;} segmentTreeNode;Node createSegmentTree(int low, int high);int main() { int N = 9;Node root=createSegmentTree(0,N-1);printf("%d %d",N, root->right->low);return 0;}

Node createSegmentT…