Submission #938587

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
938587	2024-03-05T10:43:26 Z	Lilypad	Feast (NOI19_feast)	C++14	21 / 100	37 ms	72272 KB

feast

#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 = 1503;

ll n,k,sum,b[N];
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

0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	37 ms	72272 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #2

0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	5 ms	35676 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #3

0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	34 ms	72016 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #4

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	35672 KB	Output is correct
2	Correct	5 ms	35676 KB	Output is correct
3	Correct	6 ms	35676 KB	Output is correct
4	Correct	5 ms	35672 KB	Output is correct
5	Correct	6 ms	35804 KB	Output is correct
6	Correct	5 ms	35676 KB	Output is correct
7	Correct	5 ms	35676 KB	Output is correct
8	Correct	6 ms	35676 KB	Output is correct
9	Correct	5 ms	35676 KB	Output is correct
10	Correct	5 ms	35800 KB	Output is correct

Subtask #5

11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	35672 KB	Output is correct
2	Correct	5 ms	35676 KB	Output is correct
3	Correct	6 ms	35676 KB	Output is correct
4	Correct	5 ms	35672 KB	Output is correct
5	Correct	6 ms	35804 KB	Output is correct
6	Correct	5 ms	35676 KB	Output is correct
7	Correct	5 ms	35676 KB	Output is correct
8	Correct	6 ms	35676 KB	Output is correct
9	Correct	5 ms	35676 KB	Output is correct
10	Correct	5 ms	35800 KB	Output is correct
11	Correct	5 ms	35676 KB	Output is correct
12	Correct	5 ms	35676 KB	Output is correct
13	Correct	5 ms	35752 KB	Output is correct
14	Correct	5 ms	35676 KB	Output is correct
15	Correct	7 ms	35760 KB	Output is correct
16	Correct	5 ms	35676 KB	Output is correct
17	Correct	5 ms	35676 KB	Output is correct
18	Correct	6 ms	35744 KB	Output is correct
19	Correct	5 ms	35676 KB	Output is correct
20	Correct	5 ms	35704 KB	Output is correct

Subtask #6

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	35672 KB	Output is correct
2	Correct	5 ms	35676 KB	Output is correct
3	Correct	6 ms	35676 KB	Output is correct
4	Correct	5 ms	35672 KB	Output is correct
5	Correct	6 ms	35804 KB	Output is correct
6	Correct	5 ms	35676 KB	Output is correct
7	Correct	5 ms	35676 KB	Output is correct
8	Correct	6 ms	35676 KB	Output is correct
9	Correct	5 ms	35676 KB	Output is correct
10	Correct	5 ms	35800 KB	Output is correct
11	Correct	5 ms	35676 KB	Output is correct
12	Correct	5 ms	35676 KB	Output is correct
13	Correct	5 ms	35752 KB	Output is correct
14	Correct	5 ms	35676 KB	Output is correct
15	Correct	7 ms	35760 KB	Output is correct
16	Correct	5 ms	35676 KB	Output is correct
17	Correct	5 ms	35676 KB	Output is correct
18	Correct	6 ms	35744 KB	Output is correct
19	Correct	5 ms	35676 KB	Output is correct
20	Correct	5 ms	35704 KB	Output is correct
21	Incorrect	10 ms	35820 KB	Output isn't correct
22	Halted	0 ms	0 KB	-

Subtask #7

0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	37 ms	72272 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-