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Submission #368190

# Submission time Handle Problem Language Result Execution time Memory
368190 2021-02-19T18:24:52 Z cheissmart Happiness (Balkan15_HAPPINESS) C++14
60 / 100
 1916 ms 524292 KB 
#include "happiness.h"
#include <unordered_map>
#include <cassert>
#pragma GCC optimize("Ofast", "no-stack-protector", "unroll-loops")
#define F first
#define S second
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define V vector
#define ALL(v) (v).begin(), (v).end()
#define debug(x) cerr << "LINE(" << __LINE__ << ") -> " << #x << " is " << (x) << endl

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
// typedef V<int> vi;

const int INF = 1e9 + 7;
const ll oo = 1e18;

ll C;

struct node { // maintain min{ a_i - s_{i - 1} }
	ll s, mn, lz_add;
	node *l, *r;
	bool clear;
	node() {
		l = r = nullptr;
		s = lz_add = 0;
		mn = oo;
		clear = false;
	}
};

node* root = nullptr;

void pull(node* t) {
	assert(t && t -> l && t -> r);
	t -> mn = min(t -> l -> mn, t -> r -> mn);
}

void apply(node* &t, ll val) { // add val
	if(!t) t = new node();
	t -> mn += val;
	t -> lz_add += val;
	t -> s += val;
}

void clear(node*& t) {
	if(!t) return;
	t = new node();
	t -> clear = true;
}

void push(node* t) {
	assert(t);
	if(t -> clear) {
		clear(t -> l), clear(t -> r);
		t -> clear = false;
	}
	apply(t -> l, t -> lz_add);
	apply(t -> r, t -> lz_add);
	t -> lz_add = 0;
}

ll qsum(node* t, ll pos, ll tl = 0, ll tr = C) {
	if(!t) return 0;
	if(tr - tl == 1) {
		assert(pos == tl);
		return t -> s;
	}
	push(t);
	ll tm = (tl + tr) / 2;
	if(pos < tm) return qsum(t -> l, pos, tl, tm);
	else return qsum(t -> r, pos, tm, tr);
}

void set_mn(node* &t, ll pos, ll val, ll tl = 0, ll tr = C) {
	if(!t) t = new node();
	if(tr - tl == 1) {
		assert(pos == tl);
		t -> mn = val;
		return;
	}
	push(t);
	ll tm = (tl + tr) / 2;
	if(pos < tm) set_mn(t -> l, pos, val, tl, tm);
	else set_mn(t -> r, pos, val, tm, tr);
	pull(t);
}

void add(node* &t, ll l, ll r, ll val, ll tl = 0, ll tr = C) {
	if(!t) t = new node();
	if(l <= tl && tr <= r) {
		apply(t, val);
		return;
	}
	push(t);
	ll tm = (tl + tr) / 2;
	if(l < tm) add(t -> l, l, r, val, tl, tm);
	if(r > tm) add(t -> r, l, r, val, tm, tr);
	pull(t);
}

unordered_map<ll, int> cnt;

void add_coins(ll val) {
	assert(val < C);
	ll cur = qsum(root, val) - val;
	set_mn(root, val, cur);
	if(val + 1 < C)
		add(root, val + 1, C, val);
	cnt[val]++;
}

void del_coins(ll val) {
	assert(val < C);
	assert(cnt[val]);
	if(val + 1 < C)
		add(root, val + 1, C, -val);
	cnt[val]--;
	if(cnt[val] == 0)
		set_mn(root, val, oo);
}

bool happy() {
	assert(root);
	if(root -> mn < -1) return false;
	else return true;
}

bool init(int coinsCount, long long maxCoinSize, long long coins[]) {
	cnt.clear();
	clear(root);

	C = maxCoinSize + 1;
	for(int i = 0; i < coinsCount; i++) {
		add_coins(coins[i]);
	}
	return happy();
}

bool is_happy(int event, int coinsCount, long long coins[]) {
	if(event == 1) { // add
		for(int i = 0; i < coinsCount; i++)
			add_coins(coins[i]);
	} else { // del
		for(int i = 0; i < coinsCount; i++)
			del_coins(coins[i]);
	}
	return happy();
}

Compilation message

grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
   16 |  long long max_code;
      |            ^~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 8 ms 4356 KB Output is correct
7 Correct 9 ms 4716 KB Output is correct
8 Correct 86 ms 35820 KB Output is correct
9 Correct 86 ms 36204 KB Output is correct
10 Correct 77 ms 34924 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 966 ms 74932 KB Output is correct
7 Correct 949 ms 74220 KB Output is correct
8 Correct 963 ms 75272 KB Output is correct
9 Correct 1497 ms 95600 KB Output is correct
10 Correct 1516 ms 102332 KB Output is correct
11 Correct 691 ms 63224 KB Output is correct
12 Correct 685 ms 63196 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 8 ms 4356 KB Output is correct
7 Correct 9 ms 4716 KB Output is correct
8 Correct 86 ms 35820 KB Output is correct
9 Correct 86 ms 36204 KB Output is correct
10 Correct 77 ms 34924 KB Output is correct
11 Correct 966 ms 74932 KB Output is correct
12 Correct 949 ms 74220 KB Output is correct
13 Correct 963 ms 75272 KB Output is correct
14 Correct 1497 ms 95600 KB Output is correct
15 Correct 1516 ms 102332 KB Output is correct
16 Correct 691 ms 63224 KB Output is correct
17 Correct 685 ms 63196 KB Output is correct
18 Runtime error 1916 ms 524292 KB Execution killed with signal 9
19 Halted 0 ms 0 KB -