#include "happiness.h"
//#include "grader.cpp"
#include <bits/stdc++.h>
using namespace std;
long long mx;
struct Node{
long long sum, tl, tr;
int l, r;
Node() : sum(0), l(-1), r(-1){}
};
Node tree[40 * 200010];
int cnt = 2;
void update(int node, long long pos, long long add){
if(tree[node].tl == tree[node].tr && tree[node].tl == pos){
tree[node].sum += add;
return;
}
else{
long long mid = (tree[node].tl + tree[node].tr) / 2;
if(tree[node].l == -1){
tree[node].l = cnt++;
tree[tree[node].l].tl = tree[node].tl;
tree[tree[node].l].tr = mid;
}
if(tree[node].r == -1){
tree[node].r = cnt++;
tree[tree[node].r].tl = mid+1;
tree[tree[node].r].tr = tree[node].tr;
}
if(pos <= mid){
update(tree[node].l, pos, add);
}
else
update(tree[node].r, pos, add);
tree[node].sum = tree[tree[node].l].sum + tree[tree[node].r].sum;
}
}
ll query(int node, int l, int r){
if(l == tree[node].tl && r == tree[node].tr){
return tree[node].sum;
}
else{
int mid = (tree[node].tl + tree[node].tr )/2;
if(tree[node].l == -1){
tree[node].l = cnt++;
tree[tree[node].l].tl = tree[node].tl;
tree[tree[node].l].tr = mid;
}
if(tree[node].r == -1){
tree[node].r = cnt++;
tree[tree[node].r].tl = mid+1;
tree[tree[node].r].tr = tree[node].tr;
}
if(l > mid) return query(tree[node].r, l, r);
else if(r <= mid) return query(tree[node].l, l, r);
else{
return query(tree[node].l, l, mid) + query(tree[node].r, mid+1, r);
}
}
}
bool check(){
long long coin = 1, tot = query(1, 1, mx);
while(coin <= mx){
long long sum = query(1, 1, coin);
if(sum + 1 > mx) return true;
if(tot == sum) return true;
if(query(1, coin+1, sum+1) == 0) return false;
coin = sum + 1;
}
return true;
}
bool init(int n, long long M, long long a[]){
ios_base::sync_with_stdio(false);
cin.tie(0);
mx = M;
tree[1].sum = 0;
tree[1].tl = 1;
tree[1].tr = 1e12;
for(int i = 0; i < n; i++)
update(1, a[i], a[i]);
return check();
}
bool is_happy(int e, int n, long long a[]){
for(int i = 0; i < n; i++)
update(1, a[i], a[i]*e);
return check();
}
Compilation message
happiness.cpp:39:1: error: 'll' does not name a type
39 | ll query(int node, int l, int r){
| ^~
happiness.cpp: In function 'bool check()':
happiness.cpp:63:28: error: 'query' was not declared in this scope
63 | long long coin = 1, tot = query(1, 1, mx);
| ^~~~~
grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
16 | long long max_code;
| ^~~~~~~~
