| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1112664 |
2024-11-14T14:17:15 Z |
steveonalex |
Game (IOI13_game) |
C++17 |
|
2 ms |
336 KB |
#include <bits/stdc++.h>
#include "game.h"
using namespace std;
typedef long long ll;
typedef unsigned int ul;
typedef unsigned long long ull;
#define MASK(i) (1ULL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
ll gcd(ll a, ll b){return __gcd(a, b);}
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
template <class T1, class T2>
bool maximize(T1 &a, T2 b){
if (a < b) {a = b; return true;}
return false;
}
template <class T1, class T2>
bool minimize(T1 &a, T2 b){
if (a > b) {a = b; return true;}
return false;
}
template <class T>
void printArr(T the_array_itself, string separator = " ", string finish = "\n", ostream &out = cout){
for(auto item: the_array_itself) out << item << separator;
out << finish;
}
template <class T>
void remove_dup(vector<T> &a){
sort(ALL(a));
a.resize(unique(ALL(a)) - a.begin());
}
const int INF = 1e9 + 69;
struct Treap{
struct Node{
int val, priority;
ll g, sum_g; // value of the current node, and value of the entire subtree
Node* child[2];
Node(int val): val(val), priority(rngesus(0, MASK(30) - 1)){
g = sum_g = 0;
child[0] = child[1] = nullptr;
}
};
Node* root;
Treap(){
root = nullptr;
}
void merge_children(Node* cur){
if (cur == nullptr) return;
ll ans= cur -> g;
for(int i = 0; i <= 1; ++i) if (cur -> child[i] != nullptr) {
ans = gcd(ans, cur -> child[i] -> sum_g);
}
cur -> sum_g = ans;
}
void split(Node* cur, int x, Node*& L, Node*& R){ // split up to a point x
if (cur == nullptr) {L = R = nullptr;return;}
if (x < cur -> val){
split(cur -> child[0], x, L, cur -> child[0]);
R = cur;
}
else{
split(cur -> child[1], x, cur -> child[1], R);
L = cur;
}
merge_children(L); merge_children(R);
}
void merge(Node*& cur, Node* L, Node* R){
if (L == nullptr) cur = R;
else if (R == nullptr) cur = L;
else{
if (R -> priority > L -> priority) {
cur = R;
merge(cur -> child[0], L, R -> child[0]);
}
else{
cur = L;
merge(cur -> child[1], L -> child[1], R);
}
}
merge_children(cur);
}
void update(int x, ll k){
Node *L, *mid, *R;
split(root, x-1, L, mid);
split(mid, x, mid, R);
if (mid == nullptr) mid = new Node(x);
mid -> g = mid -> sum_g = k;
merge(root, L, mid);
merge(root, root, R);
}
ll get(int u, int v, int l, int r, Node* id){
if (id == nullptr) return 0;
if (u <= l && r <= v) return id -> sum_g;
int mid = id -> val;
ll ans = 0;
if (u <= mid && mid <= v) ans = id -> g;
if (u < mid) ans = gcd(ans, get(u, v, l, mid - 1, id -> child[0]));
if (v > mid) ans = gcd(ans, get(u, v, mid + 1, r, id -> child[1]));
return ans;
}
ll get(int u, int v){
return get(u, v, 0, INF, root);
}
void clear(Node* cur){
for(int i = 0; i<= 1; ++i)
if (cur -> child[i] != nullptr) {
clear(cur->child[i]);
delete cur -> child[i];
}
}
void clear(){
if (root != nullptr){
clear(root);
delete root;
}
}
};
struct Trie2D{
struct Node{
int child[2];
Treap g;
Node(){g = Treap(); memset(child, -1, sizeof child);}
};
int l, r;
vector<Node> a;
Trie2D(){}
Trie2D(int l, int r): l(l), r(r){
a.push_back(Node());
}
void add_child(int &x){
x = a.size();
a.push_back(Node());
}
ll update(int i, int j, ll k, int l, int r, int id){
if (l == r) {a[id].g.update(j, k); return k;}
int mid = (l + r) >> 1;
ll ans = 0;
if (i <= mid){
if (a[id].child[0] == -1) add_child(a[id].child[0]);
ans = update(i, j, k, l, mid, a[id].child[0]);
ans = gcd(ans, a[a[id].child[1]].g.get(j, j));
}
else{
if (a[id].child[1] == -1) add_child(a[id].child[1]);
ans = update(i, j, k, mid + 1, r, a[id].child[1]);
ans = gcd(ans, a[a[id].child[0]].g.get(j, j));
}
a[id].g.update(j, ans);
return ans;
}
void update(int i, int j, ll k){
update(i, j, k, l, r, 0);
}
ll get(int u, int v, int x, int y, int l, int r, int id){
if (u <= l && r <= v) return a[id].g.get(x, y);
int mid = (l + r) >> 1;
ll ans = 0;
if (u <= mid && a[id].child[0] != -1) ans = gcd(ans, get(u, v, x, y, l, mid, a[id].child[0]));
if (v > mid && a[id].child[1] != -1) ans = gcd(ans, get(u, v, x, y, mid + 1, r, a[id].child[1]));
return ans;
}
ll get(int u, int v, int x, int y){return get(u, v, x, y, l, r, 0);}
};
Trie2D tri;
void init(int R, int C) {
tri = Trie2D(0, INF);
}
void update(int P, int Q, long long K) {
tri.update(P, Q, K);
/* ... */
}
long long calculate(int P, int Q, int U, int V) {
if (P > U) swap(P, U);
if (Q > V) swap(Q, V);
return tri.get(P, U, Q, V);
}
// int main(void){
// ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
// clock_t start = clock();
// init(2, 3);
// update(0, 0, 20);
// update(0, 2, 15);
// update(1, 1, 12);
// cout << calculate(0, 0, 0, 2) << "\n";
// cerr << "Time elapsed: " << clock() - start << " ms!\n";
// return 0;
// }
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
336 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
336 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
