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답안 #336561

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
336561 2020-12-15T17:04:53 Z super_j6 Feast (NOI19_feast) C++14
100 / 100
 165 ms 8696 KB 
#include <iostream>
#include <cstdio>
#include <algorithm>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<ll, ll>
#define f first
#define s second

const int mxn = 300001;
int n, k;
ll a[mxn];
pi dp[mxn];

pi sol(ll x){
	pi p = dp[0];
	for(int i = 1; i <= n; i++){
		dp[i] = dp[i - 1];
		if(p.f + a[i] - x >= dp[i].f) dp[i] = {p.f + a[i] - x, p.s + 1};
		if(dp[i].f - a[i] >= p.f) p = {dp[i].f - a[i], dp[i].s};
	}
	return dp[n];
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n >> k;
	
	for(int i = 1; i <= n; i++) cin >> a[i], a[i] += a[i - 1];
	
	ll l = -1, r = 0x3f3f3f3f3f3f3f3f;
	while(r - l > 1){
		ll mid = (l + r) / 2;
		if(sol(mid).s <= k) r = mid; 
		else l = mid;
	}
	
	pi p = sol(r);
	
	cout << (p.f + p.s * r) << endl;

	return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 84 ms 7168 KB Output is correct
2 Correct 84 ms 7276 KB Output is correct
3 Correct 85 ms 7404 KB Output is correct
4 Correct 85 ms 7276 KB Output is correct
5 Correct 84 ms 7276 KB Output is correct
6 Correct 83 ms 7148 KB Output is correct
7 Correct 85 ms 7148 KB Output is correct
8 Correct 85 ms 7276 KB Output is correct
9 Correct 82 ms 7148 KB Output is correct
10 Correct 87 ms 7276 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 76 ms 7148 KB Output is correct
2 Correct 77 ms 7532 KB Output is correct
3 Correct 76 ms 7148 KB Output is correct
4 Correct 75 ms 7276 KB Output is correct
5 Correct 94 ms 7148 KB Output is correct
6 Correct 73 ms 7148 KB Output is correct
7 Correct 78 ms 7532 KB Output is correct
8 Correct 86 ms 7532 KB Output is correct
9 Correct 84 ms 7212 KB Output is correct
10 Correct 77 ms 7276 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 120 ms 7276 KB Output is correct
2 Correct 118 ms 8512 KB Output is correct
3 Correct 118 ms 8556 KB Output is correct
4 Correct 119 ms 8512 KB Output is correct
5 Correct 130 ms 8556 KB Output is correct
6 Correct 119 ms 8556 KB Output is correct
7 Correct 121 ms 8556 KB Output is correct
8 Correct 119 ms 8556 KB Output is correct
9 Correct 124 ms 8684 KB Output is correct
10 Correct 122 ms 8644 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 400 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 400 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 400 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 2 ms 364 KB Output is correct
23 Correct 2 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 2 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 2 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 84 ms 7168 KB Output is correct
2 Correct 84 ms 7276 KB Output is correct
3 Correct 85 ms 7404 KB Output is correct
4 Correct 85 ms 7276 KB Output is correct
5 Correct 84 ms 7276 KB Output is correct
6 Correct 83 ms 7148 KB Output is correct
7 Correct 85 ms 7148 KB Output is correct
8 Correct 85 ms 7276 KB Output is correct
9 Correct 82 ms 7148 KB Output is correct
10 Correct 87 ms 7276 KB Output is correct
11 Correct 76 ms 7148 KB Output is correct
12 Correct 77 ms 7532 KB Output is correct
13 Correct 76 ms 7148 KB Output is correct
14 Correct 75 ms 7276 KB Output is correct
15 Correct 94 ms 7148 KB Output is correct
16 Correct 73 ms 7148 KB Output is correct
17 Correct 78 ms 7532 KB Output is correct
18 Correct 86 ms 7532 KB Output is correct
19 Correct 84 ms 7212 KB Output is correct
20 Correct 77 ms 7276 KB Output is correct
21 Correct 120 ms 7276 KB Output is correct
22 Correct 118 ms 8512 KB Output is correct
23 Correct 118 ms 8556 KB Output is correct
24 Correct 119 ms 8512 KB Output is correct
25 Correct 130 ms 8556 KB Output is correct
26 Correct 119 ms 8556 KB Output is correct
27 Correct 121 ms 8556 KB Output is correct
28 Correct 119 ms 8556 KB Output is correct
29 Correct 124 ms 8684 KB Output is correct
30 Correct 122 ms 8644 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 1 ms 400 KB Output is correct
41 Correct 1 ms 364 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 2 ms 364 KB Output is correct
53 Correct 2 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 2 ms 364 KB Output is correct
56 Correct 2 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 2 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 157 ms 8448 KB Output is correct
62 Correct 156 ms 8696 KB Output is correct
63 Correct 136 ms 8428 KB Output is correct
64 Correct 160 ms 8556 KB Output is correct
65 Correct 165 ms 8612 KB Output is correct
66 Correct 161 ms 8556 KB Output is correct
67 Correct 160 ms 8428 KB Output is correct
68 Correct 123 ms 8556 KB Output is correct
69 Correct 119 ms 8476 KB Output is correct
70 Correct 128 ms 8556 KB Output is correct