oj.uz

답안 #278109

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
278109 2020-08-21T10:40:43 Z arnold518 Happiness (Balkan15_HAPPINESS) C++14
30 / 100
 2000 ms 196096 KB 
#pragma GCC optimize ("O3")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")

#include "happiness.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const ll INF = 1e18;
const int MAXVAL = 8e6;

ll M;
map<ll, int> MM;

struct Node
{
	ll val, sum;
	int lc, rc;
	Node() : val(0), sum(0), lc(-1), rc(-1) {} 
};

Node nodes[MAXVAL];
int ncnt;

int newNode()
{
	return ncnt++;
}

void update(int node, ll tl, ll tr, ll p, ll k)
{
	if(tl==tr)
	{
		nodes[node].sum+=k;
		nodes[node].val+=k;
		return;
	}
	ll mid=tl+tr>>1;
	if(p<=mid)
	{
		if(nodes[node].lc==-1) nodes[node].lc=newNode();
		update(nodes[node].lc, tl, mid, p, k);
	}
	else
	{
		if(nodes[node].rc==-1) nodes[node].rc=newNode();
		update(nodes[node].rc, mid+1, tr, p, k);
	}
	nodes[node].sum=0; nodes[node].val=INF;
	if(nodes[node].lc!=-1) nodes[node].sum+=nodes[nodes[node].lc].sum;

	if(nodes[node].lc!=-1) nodes[node].val=min(nodes[node].val, nodes[nodes[node].lc].val);
	else nodes[node].val=min(nodes[node].val, 0ll);
	if(nodes[node].rc!=-1) nodes[node].val=min(nodes[node].val, nodes[node].sum+nodes[nodes[node].rc].val);
	else nodes[node].val=min(nodes[node].val, nodes[node].sum);

	if(nodes[node].rc!=-1) nodes[node].sum+=nodes[nodes[node].rc].sum;

	//printf("%lld %lld %lld %lld / %lld %lld\n", tl, tr, p, k, nodes[node].sum, nodes[node].val);
}

int root;

ll query()
{
	return nodes[root].val;
}

void update2(ll l, ll r, ll x)
{
	if(r<l) return;
	if(l<=M) update(root, 1, M, l, x);
	if(r+1<=M) update(root, 1, M, r+1, -x);
	//printf("%lld %lld %lld => %lld\n", l, r, x, query());
}

void push(ll x)
{
	update2(x+1, M, x);
	MM[x]++;
	if(MM[x]==1)
	{
		auto it=MM.find(x);
		ll val=-x;
		if(next(it)!=MM.end()) val+=next(it)->first;
		update2(prev(it)->first+1, x, val);
	}
}

void pop(ll x)
{
	update2(x+1, M, -x);
	MM[x]--;
	if(MM[x]==0)
	{
		auto it=MM.find(x);
		ll val=x;
		if(next(it)!=MM.end()) val-=next(it)->first;
		update2(prev(it)->first+1, x, val);
		MM.erase(x);
	}
}

bool init(int coinsCount, ll maxCoinSize, ll coins[])
{
	M=maxCoinSize;
	root=newNode();
	MM[0];

	for(int i=0; i<coinsCount; i++) push(coins[i]);
	return query()>=-1;
}

bool is_happy(int event, int coinsCount, ll coins[])
{
	if(event == -1) for(int i=0; i<coinsCount; i++) pop(coins[i]);
	else for(int i=0; i<coinsCount; i++) push(coins[i]);
	return query()>=-1;
}

Compilation message

happiness.cpp: In function 'void update(int, ll, ll, ll, ll)':
happiness.cpp:42:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   42 |  ll mid=tl+tr>>1;
      |         ~~^~~
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

# 결과 실행 시간 메모리 Grader output
1 Correct 107 ms 188152 KB Output is correct
2 Correct 121 ms 188156 KB Output is correct
3 Correct 118 ms 188152 KB Output is correct
4 Correct 108 ms 188156 KB Output is correct
5 Correct 115 ms 188152 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 107 ms 188152 KB Output is correct
2 Correct 121 ms 188156 KB Output is correct
3 Correct 118 ms 188152 KB Output is correct
4 Correct 108 ms 188156 KB Output is correct
5 Correct 115 ms 188152 KB Output is correct
6 Correct 110 ms 188280 KB Output is correct
7 Correct 110 ms 188280 KB Output is correct
8 Correct 150 ms 189176 KB Output is correct
9 Correct 155 ms 189048 KB Output is correct
10 Correct 142 ms 189048 KB Output is correct

Subtask #3
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 107 ms 188152 KB Output is correct
2 Correct 121 ms 188156 KB Output is correct
3 Correct 118 ms 188152 KB Output is correct
4 Correct 108 ms 188156 KB Output is correct
5 Correct 115 ms 188152 KB Output is correct
6 Correct 1082 ms 195816 KB Output is correct
7 Correct 1022 ms 195952 KB Output is correct
8 Correct 1161 ms 195940 KB Output is correct
9 Execution timed out 2013 ms 196096 KB Time limit exceeded
10 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 107 ms 188152 KB Output is correct
2 Correct 121 ms 188156 KB Output is correct
3 Correct 118 ms 188152 KB Output is correct
4 Correct 108 ms 188156 KB Output is correct
5 Correct 115 ms 188152 KB Output is correct
6 Correct 110 ms 188280 KB Output is correct
7 Correct 110 ms 188280 KB Output is correct
8 Correct 150 ms 189176 KB Output is correct
9 Correct 155 ms 189048 KB Output is correct
10 Correct 142 ms 189048 KB Output is correct
11 Correct 1082 ms 195816 KB Output is correct
12 Correct 1022 ms 195952 KB Output is correct
13 Correct 1161 ms 195940 KB Output is correct
14 Execution timed out 2013 ms 196096 KB Time limit exceeded
15 Halted 0 ms 0 KB -