oj.uz

답안 #971925

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
971925 2024-04-29T13:58:19 Z penguin133 사탕 분배 (IOI21_candies) C++17
0 / 100
 470 ms 59220 KB 
#include <bits/stdc++.h>
using namespace std;
#include "candies.h"
//#define int long long
typedef long long ll;
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

ll cap;

struct dat{
	ll cur_sum, tot, mx, mn, mxpos, mnpos;
};

dat comb(dat a, dat b){
	dat ans;
	ans.tot = a.tot + b.tot;
	if(b.mnpos < b.mxpos){
		if(a.cur_sum + b.mn < 0){
			if(b.mx - b.mn > cap)ans.cur_sum = cap + b.tot - b.mx;
			else ans.cur_sum = b.tot - b.mn;
		}
		else if(a.cur_sum + b.mx > cap){
			ans.cur_sum = cap + b.tot - b.mx;
		}
		else ans.cur_sum = a.cur_sum + b.tot;
	}
	else{
		if(a.cur_sum + b.mx > cap){
			if(b.mn - b.mx < -cap)ans.cur_sum = b.tot - b.mn;
			else ans.cur_sum = cap + b.tot - b.mx;
		}
		else if(a.cur_sum + b.mn < 0){
			ans.cur_sum = b.tot - b.mn;
		}
		else ans.cur_sum = a.cur_sum + b.tot;
	}
	ans.mn = min(a.mn, a.cur_sum + b.mn);
	ans.mnpos = (ans.mn == a.mn ? a.mnpos : b.mnpos);
	ans.mx = max(a.mx, a.cur_sum + b.mx);
	ans.mxpos = (ans.mx == a.mx ? a.mxpos : b.mxpos);
	//assert(ans.cur_sum >= 0);
	//assert(ans.cur_sum <= cap);
	return ans;
}

struct node{
	int s, e, m;
	dat val;
	node *l, *r;
	node(int _s, int _e){
		s = _s, e = _e, m = (s + e) >> 1;
		if(s != e)l = new node(s, m), r = new node(m+1, e);
		val.cur_sum = val.mx = val.mn = 0;
		val.mxpos = val.mnpos = s;
		val.tot = 0;
	}
	
	void upd(int p, ll v){
		if(s == e){
			val.mx = val.mn = val.tot = v;
			val.cur_sum = max(v, 0ll);
			val.cur_sum = min(val.cur_sum, cap);
			val.mxpos = val.mnpos = s;
		}
		else{
			if(p <= m)l->upd(p, v);
			else r->upd(p, v);
			val = comb(l->val, r->val);
			//cout << s << ' ' << e << '\n';
			//cout << val.cur_sum << ' ' << val.mx << ' ' << val.mn << '\n';
		}
	}
}*root;

vector <pi> Q[300005];
std::vector<int> distribute_candies(std::vector<int> c, std::vector<int> l,
                                    std::vector<int> r, std::vector<int> v) {
    int n = (int)c.size(), q = (int)l.size();
    cap = c[0];
    for(int i = 0; i < q; i++){
		Q[l[i]].push_back({i, v[i]});
		Q[r[i] + 1].push_back({i, 0});
	}
	root = new node(0, q - 1);
	vector <int> ans(n);
	for(int i = 0; i < n; i++){
		for(auto [a, b] : Q[i]){
			root->upd(a, b);
		}
		ans[i] = root->val.cur_sum;
	}
	return ans;
}

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 470 ms 59220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7260 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB Output isn't correct
2 Halted 0 ms 0 KB -