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답안 #938589

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
938589 2024-03-05T10:45:53 Z Lilypad Feast (NOI19_feast) C++14
53 / 100
 102 ms 68436 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
#define pb push_back
#define fi first
#define se second

const ll N = 2003;

ll n,k,sum,b[300005];
ll mins,pos,idx;
vector<ll> a;
ll memo[N][N][2];

ll dp(ll x, ll y, ll stat) {
	if(x == idx+1) return 0;
	ll tmp = memo[x][y][stat];
	if(tmp != -1) return tmp;
	if(stat == 0) {
		tmp = dp(x+1,y,0);
		if(y > 0) {
			tmp = max(tmp,dp(x+1,y-1,1)+a[x]);
		}
	}
	else {
		tmp = max(dp(x+1,y,0),dp(x+1,y,1)+a[x]);
	}
	return memo[x][y][stat] = tmp;
}

int main() {
	memset(memo,-1,sizeof(memo));
	cin >> n >> k;
	for(int i=1; i<=n; i++) {
		cin >> b[i];
	}
	a.pb(0);
	for(int i=1; i<=n; i++) {
		if(b[i] >= 0) {
			sum += b[i];
			if(mins < 0) {
				a.pb(mins);
				mins = 0;
			}
		}
		else {
			mins += b[i];
			if(sum > 0) {
				a.pb(sum);
				sum = 0;
				pos++;
			}
		}
	}
	if(sum > 0) {
		a.pb(sum);
		pos++;
	}
	if(mins < 0) a.pb(mins);
	idx = a.size()-1;
	cout << dp(1,k,0) << endl;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 100 ms 65364 KB Output is correct
2 Correct 90 ms 65312 KB Output is correct
3 Correct 93 ms 65620 KB Output is correct
4 Correct 94 ms 65364 KB Output is correct
5 Correct 89 ms 65360 KB Output is correct
6 Correct 86 ms 65444 KB Output is correct
7 Correct 97 ms 65388 KB Output is correct
8 Correct 90 ms 65364 KB Output is correct
9 Correct 87 ms 65500 KB Output is correct
10 Correct 96 ms 65488 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 53 ms 65364 KB Output is correct
2 Correct 65 ms 65360 KB Output is correct
3 Correct 50 ms 65364 KB Output is correct
4 Correct 63 ms 66592 KB Output is correct
5 Correct 91 ms 68224 KB Output is correct
6 Correct 51 ms 66540 KB Output is correct
7 Correct 51 ms 66640 KB Output is correct
8 Correct 102 ms 68436 KB Output is correct
9 Correct 88 ms 68176 KB Output is correct
10 Correct 50 ms 66640 KB Output is correct

Subtask #3
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 97 ms 67732 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 64092 KB Output is correct
2 Correct 9 ms 64088 KB Output is correct
3 Correct 9 ms 64092 KB Output is correct
4 Correct 8 ms 64096 KB Output is correct
5 Correct 9 ms 64092 KB Output is correct
6 Correct 9 ms 64092 KB Output is correct
7 Correct 9 ms 64092 KB Output is correct
8 Correct 9 ms 64176 KB Output is correct
9 Correct 10 ms 64140 KB Output is correct
10 Correct 10 ms 64092 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 64092 KB Output is correct
2 Correct 9 ms 64088 KB Output is correct
3 Correct 9 ms 64092 KB Output is correct
4 Correct 8 ms 64096 KB Output is correct
5 Correct 9 ms 64092 KB Output is correct
6 Correct 9 ms 64092 KB Output is correct
7 Correct 9 ms 64092 KB Output is correct
8 Correct 9 ms 64176 KB Output is correct
9 Correct 10 ms 64140 KB Output is correct
10 Correct 10 ms 64092 KB Output is correct
11 Correct 9 ms 64092 KB Output is correct
12 Correct 8 ms 64088 KB Output is correct
13 Correct 9 ms 64088 KB Output is correct
14 Correct 9 ms 64088 KB Output is correct
15 Correct 9 ms 64092 KB Output is correct
16 Correct 9 ms 64088 KB Output is correct
17 Correct 9 ms 64092 KB Output is correct
18 Correct 9 ms 64116 KB Output is correct
19 Correct 8 ms 64132 KB Output is correct
20 Correct 9 ms 64092 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 64092 KB Output is correct
2 Correct 9 ms 64088 KB Output is correct
3 Correct 9 ms 64092 KB Output is correct
4 Correct 8 ms 64096 KB Output is correct
5 Correct 9 ms 64092 KB Output is correct
6 Correct 9 ms 64092 KB Output is correct
7 Correct 9 ms 64092 KB Output is correct
8 Correct 9 ms 64176 KB Output is correct
9 Correct 10 ms 64140 KB Output is correct
10 Correct 10 ms 64092 KB Output is correct
11 Correct 9 ms 64092 KB Output is correct
12 Correct 8 ms 64088 KB Output is correct
13 Correct 9 ms 64088 KB Output is correct
14 Correct 9 ms 64088 KB Output is correct
15 Correct 9 ms 64092 KB Output is correct
16 Correct 9 ms 64088 KB Output is correct
17 Correct 9 ms 64092 KB Output is correct
18 Correct 9 ms 64116 KB Output is correct
19 Correct 8 ms 64132 KB Output is correct
20 Correct 9 ms 64092 KB Output is correct
21 Correct 13 ms 64092 KB Output is correct
22 Correct 16 ms 64092 KB Output is correct
23 Correct 15 ms 64092 KB Output is correct
24 Correct 14 ms 64092 KB Output is correct
25 Correct 15 ms 64092 KB Output is correct
26 Correct 12 ms 64092 KB Output is correct
27 Correct 14 ms 64092 KB Output is correct
28 Correct 10 ms 64088 KB Output is correct
29 Correct 11 ms 64212 KB Output is correct
30 Correct 9 ms 64092 KB Output is correct

Subtask #7
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 100 ms 65364 KB Output is correct
2 Correct 90 ms 65312 KB Output is correct
3 Correct 93 ms 65620 KB Output is correct
4 Correct 94 ms 65364 KB Output is correct
5 Correct 89 ms 65360 KB Output is correct
6 Correct 86 ms 65444 KB Output is correct
7 Correct 97 ms 65388 KB Output is correct
8 Correct 90 ms 65364 KB Output is correct
9 Correct 87 ms 65500 KB Output is correct
10 Correct 96 ms 65488 KB Output is correct
11 Correct 53 ms 65364 KB Output is correct
12 Correct 65 ms 65360 KB Output is correct
13 Correct 50 ms 65364 KB Output is correct
14 Correct 63 ms 66592 KB Output is correct
15 Correct 91 ms 68224 KB Output is correct
16 Correct 51 ms 66540 KB Output is correct
17 Correct 51 ms 66640 KB Output is correct
18 Correct 102 ms 68436 KB Output is correct
19 Correct 88 ms 68176 KB Output is correct
20 Correct 50 ms 66640 KB Output is correct
21 Incorrect 97 ms 67732 KB Output isn't correct
22 Halted 0 ms 0 KB -