oj.uz

답안 #275446

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
275446 2020-08-20T06:07:16 Z 임성재(#5103) Happiness (Balkan15_HAPPINESS) C++17
0 / 100
 4 ms 4480 KB 
#include "happiness.h"
#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define em emplace
#define eb emplace_back
#define all(v) (v).begin(), (v).end()
#define mp make_pair

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;

ll n, m;
int chk[1000010];
ll tree[4000010];
ll lazy[4000010];

void Init(int node, int s, int e) {
	lazy[node] = 0;
	if(s == e) {
		tree[node] = INF - s;
		return;	
	}

	Init(node*2, s, (s+e)/2);
	Init(node*2+1, (s+e)/2+1, e);

	tree[node] = min(tree[node*2], tree[node*2+1]);
}

void propagate(int node, int s, int e) {
	tree[node] += lazy[node];

	if(s != e) {
		lazy[node*2] += lazy[node];
		lazy[node*2+1] += lazy[node];
	}

	lazy[node] = 0;
}

void update(int node, int s, int e, int l, int r, ll x) {
	propagate(node, s, e);

	if(r < s || e < l) return;
	if(l <= s && e <= r) {
		lazy[node] += x;
		propagate(node, s, e);
		
		return;
	}

	update(node*2, s, (s+e)/2, l, r, x);
	update(node*2+1, (s+e)/2+1, e, l, r, x);

	tree[node] = min(tree[node*2], tree[node*2+1]);
}

void chg(int node, int s, int e, int i, ll x) {
	propagate(node, s, e);

	if(s == e) {
		tree[node] += x;
		return;
	}

	int m = (s + e) / 2;
	if(i <= m) chg(node*2, s, m, i, x);
	else chg(node*2+1, m+1, e, i, x);

	tree[node] = min(tree[node*2], tree[node*2+1]);
}

bool init(int coinsCount, long long maxCoinSize, long long coins[]) {
	n = coinsCount;
	m = maxCoinSize + 100000;

	Init(1, 1, m);

	for(int i=0; i<n; i++) {
		if(chk[coins[i]] == 0) chg(1, 1, m, coins[i], -INF);
		
		update(1, 1, m, coins[i]+1, m, coins[i]);
		
		chk[coins[i]]++;
	}

	propagate(1, 1, m);

	return tree[1] >= -1;
}

bool is_happy(int event, int coinsCount, long long coins[]) {
	n = coinsCount;

	for(int i=0; i<n; i++) {
		if(chk[coins[i]] == 1 && event == -1) chg(1, 1, m, coins[i], INF);
		if(chk[coins[i]] == 0 && event == 1) chg(1, 1, m, coins[i], -INF);

		if(event == 1) update(1, 1, m, coins[i]+1, m, coins[i]);
		else update(1, 1, m, coins[i]+1, m, -coins[i]);

		chk[coins[i]] += event;
	}
	
	propagate(1, 1, m);

	return tree[1] >= -1;
}

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
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4480 KB Output is correct
2 Correct 3 ms 4480 KB Output is correct
3 Incorrect 4 ms 4480 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4480 KB Output is correct
2 Correct 3 ms 4480 KB Output is correct
3 Incorrect 4 ms 4480 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4480 KB Output is correct
2 Correct 3 ms 4480 KB Output is correct
3 Incorrect 4 ms 4480 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4480 KB Output is correct
2 Correct 3 ms 4480 KB Output is correct
3 Incorrect 4 ms 4480 KB Output isn't correct
4 Halted 0 ms 0 KB -