Revise paste Untitled

#include <iostream>
    #include <vector>
    #include <set>
    #include <map>
    #include <cstring>
    #include <algorithm>
    #include <stack>
    #include <queue>

using namespace std;
    vector<int>v;
    const int maxn=2e5;

int segment[maxn*3];
    void build_tree(int L, int R, int pos){
    if(L==R){
        segment[pos]=v[L];
    }
    else{
        int middle=(L+R)/2;
        build_tree(L, middle, pos*2);
        build_tree(middle+1, R, pos*2+1);
        segment[pos]=min(segment[2*pos], segment[2*pos+1]);

}
    }
    ///l r i l r j l r
    int query(int L, int R, int pos, int i, int j){
    if(i<=L and j>=R){
        return segment[pos];
    }
    if(R<i or j<L){
        return 2e9;
    }
    int middle=(R+L)/2;
    return min(query(L, middle, pos*2, i, j), query(middle+1, R, pos*2+1, i, j));
    }

int main() {
    int n, k, l;

cin>>n>>l>>k;
    for(int i=0; i<n; i++){
    int a; cin>>a;
    v.push_back(a);
    }
    build_tree(0, n-1, 1);
    int counter=0;
    for(int i=0; i<v.size(); i++){
        if(v[i]<l){
            continue;
        }
        if(i + k >= v.size()) {
            continue;
        }
        if(query(0, n-1, 1, i+1, i+k)>=l){
        counter++;
        }

}
    cout<<counter;
    return 0;
    }