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Submission #465383

# Submission time Handle Problem Language Result Execution time Memory
465383 2021-08-15T19:25:36 Z koioi.org-dennisstar Distributing Candies (IOI21_candies) C++17
100 / 100
 464 ms 36972 KB 
#include "candies.h"
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

const int MX = 1<<19;

vector<ll> smx(MX), smn(MX), st(MX);

void upd(int i, int s, int e, int t, ll v) {
	if (s==e) {
		smx[i]=max(0ll, v);
		smn[i]=min(0ll, v);
		st[i]=v;
		return ;
	}

	int m=(s+e)/2;
	if (t<=m) upd(i*2, s, m, t, v);
	else upd(i*2+1, m+1, e, t, v);
	
	st[i]=st[i*2]+st[i*2+1];
	smx[i]=max(smx[i*2], st[i*2]+smx[i*2+1]);
	smn[i]=min(smn[i*2], st[i*2]+smn[i*2+1]);
}

ll get(int i, int s, int e, ll c) {
	if (s==e) return min(max(st[i], 0ll), c);

	int m=(s+e)/2;
	if (smx[i*2+1]-smn[i*2+1]>c) return get(i*2+1, m+1, e, c);

	ll r=get(i*2, s, m, c);
	if (r+smx[i*2+1]>c) return c-(smx[i*2+1]-st[i*2+1]);
	if (r+smn[i*2+1]<0) return st[i*2+1]-smn[i*2+1];
	return r+st[i*2+1];
}

vector<int> distribute_candies(vector<int> c, vector<int> l, vector<int> r, vector<int> v) {
	int N=c.size(), Q=l.size();
	vector<int> rt;

	vector<vector<int>> q(N+1);
	for (int i=0; i<Q; i++) q[l[i]].emplace_back(i+1), q[r[i]+1].emplace_back(-(i+1));
	for (int i=0; i<N; i++) {
		for (auto &j:q[i]) {
			if (j>0) j--, upd(1, 0, Q-1, j, v[j]);
			else j=-j-1, upd(1, 0, Q-1, j, 0);
		}
		rt.emplace_back(get(1, 0, Q-1, c[i]));
	}

	return rt;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12620 KB Output is correct
2 Correct 6 ms 12620 KB Output is correct
3 Correct 7 ms 12620 KB Output is correct
4 Correct 8 ms 12640 KB Output is correct
5 Correct 8 ms 12748 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 446 ms 35124 KB Output is correct
2 Correct 425 ms 34360 KB Output is correct
3 Correct 445 ms 34216 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12632 KB Output is correct
2 Correct 277 ms 22664 KB Output is correct
3 Correct 85 ms 22332 KB Output is correct
4 Correct 442 ms 36264 KB Output is correct
5 Correct 459 ms 36544 KB Output is correct
6 Correct 464 ms 36972 KB Output is correct
7 Correct 438 ms 36340 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12620 KB Output is correct
2 Correct 6 ms 12628 KB Output is correct
3 Correct 125 ms 21736 KB Output is correct
4 Correct 72 ms 21200 KB Output is correct
5 Correct 210 ms 30244 KB Output is correct
6 Correct 202 ms 30844 KB Output is correct
7 Correct 201 ms 31536 KB Output is correct
8 Correct 198 ms 30008 KB Output is correct
9 Correct 210 ms 31500 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12620 KB Output is correct
2 Correct 6 ms 12620 KB Output is correct
3 Correct 7 ms 12620 KB Output is correct
4 Correct 8 ms 12640 KB Output is correct
5 Correct 8 ms 12748 KB Output is correct
6 Correct 446 ms 35124 KB Output is correct
7 Correct 425 ms 34360 KB Output is correct
8 Correct 445 ms 34216 KB Output is correct
9 Correct 6 ms 12632 KB Output is correct
10 Correct 277 ms 22664 KB Output is correct
11 Correct 85 ms 22332 KB Output is correct
12 Correct 442 ms 36264 KB Output is correct
13 Correct 459 ms 36544 KB Output is correct
14 Correct 464 ms 36972 KB Output is correct
15 Correct 438 ms 36340 KB Output is correct
16 Correct 6 ms 12620 KB Output is correct
17 Correct 6 ms 12628 KB Output is correct
18 Correct 125 ms 21736 KB Output is correct
19 Correct 72 ms 21200 KB Output is correct
20 Correct 210 ms 30244 KB Output is correct
21 Correct 202 ms 30844 KB Output is correct
22 Correct 201 ms 31536 KB Output is correct
23 Correct 198 ms 30008 KB Output is correct
24 Correct 210 ms 31500 KB Output is correct
25 Correct 6 ms 12620 KB Output is correct
26 Correct 76 ms 21316 KB Output is correct
27 Correct 276 ms 22264 KB Output is correct
28 Correct 463 ms 34832 KB Output is correct
29 Correct 431 ms 35264 KB Output is correct
30 Correct 444 ms 35432 KB Output is correct
31 Correct 457 ms 35640 KB Output is correct
32 Correct 441 ms 35816 KB Output is correct