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#include "../util.h"
#include <datastructures/segmentTree.cpp>
constexpr int N = 1'000'000;
//void update(int i, ll val)
//ll query(int l, int r)
//point update + range query
void stress_test1() {
ll queries = 0;
for (int tries = 0; tries < 100; tries++) {
int n = Random::integer<int>(10, 100);
vector<ll> naive = Random::integers<ll>(n, -1000, 1000);
SegTree tree(naive);
for (int operations = 0; operations < 1000; operations++) {
{
int i = Random::integer<int>(0, n);
ll x = Random::integer<ll>(-1000, 1000);
tree.update(i, x);
naive[i] = x;//point assignment
}
{
queries++;
int l = Random::integer<int>(0, n + 1);
int r = Random::integer<int>(0, n + 1);
//if (l > r) swap(l, r);
ll got = tree.query(l, r);
ll expected = 0;
for (int j = l; j < r; j++) expected += naive[j];//range sum
if (got != expected) cerr << " got: " << got << ", expected: " << expected << FAIL;
}
}
}
cerr << " tested random queries: " << queries << endl;
}
//point update + range query
void performance_test1() {
timer t;
t.start();
vector<ll> tmp(N);
SegTree tree(tmp);
t.stop();
hash_t hash = 0;
for (int operations = 0; operations < N; operations++) {
int i = Random::integer<int>(0, N);
auto [l, r] = Random::pair<int>(0, N + 1);
ll x = Random::integer<ll>(-1000, 1000);
t.start();
tree.update(i, x);
hash ^= tree.query(l, r);
t.stop();
}
if (t.time > 1000) cerr << " too slow: " << t.time << FAIL;
cerr << " tested performance: " << t.time << "ms (hash: " << hash << ")" << endl;
}
//void modify(int l, int r, T val)
//ll query(int i)
//range update + point query
void stress_test2() {
ll queries = 0;
for (int tries = 0; tries < 100; tries++) {
int n = Random::integer<int>(10, 100);
vector<ll> naive(n);
SegTree tree(naive);
naive = Random::integers<ll>(n, -1000, 1000);
ranges::copy(naive, tree.tree.begin() + n);
for (int operations = 0; operations < 1000; operations++) {
{
int l = Random::integer<int>(0, n + 1);
int r = Random::integer<int>(0, n + 1);
//if (l > r) swap(l, r);
ll x = Random::integer<ll>(-1000, 1000);
tree.modify(l, r, x);
for (int j = l; j < r; j++) naive[j] += x;//range add
}
{
queries++;
int i = Random::integer<int>(0, n);
ll got = tree.query(i);
ll expected = naive[i];//point query
if (got != expected) cerr << " got: " << got << ", expected: " << expected << FAIL;
}
}
}
cerr << " tested random queries: " << queries << endl;
}
//range update + point query
void performance_test2() {
timer t;
t.start();
vector<ll> tmp(N);
SegTree tree(tmp);
t.stop();
hash_t hash = 0;
for (int operations = 0; operations < N; operations++) {
int i = Random::integer<int>(0, N);
auto [l, r] = Random::pair<int>(0, N + 1);
ll x = Random::integer<ll>(-1000, 1000);
t.start();
tree.modify(l, r, x);
hash ^= tree.query(i);
t.stop();
}
if (t.time > 1000) cerr << " too slow: " << t.time << FAIL;
cerr << " tested performance: " << t.time << "ms (hash: " << hash << ")" << endl;
}
int main() {
cerr << "point update + range query:" << endl;
stress_test1();
if (!sanitize) performance_test1();
cerr << "range update + point query" << endl;
stress_test2();
if (!sanitize) performance_test2();
}
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