CSES - Range Update Queries

Can convert any point update range query -> range update point query. Here we use a segment tree; a BIT would also work.

Implementation without template:

#include <bits/stdc++.h>
 
using namespace std;
using ll = long long;
using ld = long double;
 
template<class T> struct Seg {
	int n;
	T ID = 0;
	vector<T> seg;

Implementation with template:

#include <bits/stdc++.h>
using namespace std;
 
using ll = long long;
using ld = long double;
using db = double; 
using str = string; // yay python!

using pi = pair<int,int>;
using pl = pair<ll,ll>;