답안 #261938

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
261938	2020-08-12T08:07:06 Z	patrikpavic2	Cake 3 (JOI19_cake3)	C++17	24 / 100	152 ms	73828 KB

cake3

#include <cstdio>
#include <cstring>
#include <vector>
#include <algorithm>

#define X first
#define Y second
#define PB push_back

using namespace std;

typedef pair < int, int > pii;
typedef long long ll;

const int N = 2e3 + 50;
const ll INF = 1e18;

ll dp[N][N];
int C[N], V[N], n, m;
vector < pii > v;

ll f(int i, int j){
	if(i == 0) return (j != 0) * (-INF);
	if(dp[i][j] != -1) return dp[i][j];
	if(j == 1)
		return dp[i][j] = max(f(i - 1, 1), 2LL * C[i] + V[i]);
	return dp[i][j] = max(f(i - 1, j), f(i - 1, j - 1) + V[i]);
}

int main(){
	memset(dp, -1, sizeof(dp));	
	scanf("%d%d", &n, &m);
	for(int i = 0;i < n;i++){
		int x, y; scanf("%d%d", &x, &y);
		v.PB({y, x});
	}
	sort(v.begin(), v.end());
	for(int i = 0;i < n;i++)
		C[i + 1] = v[i].X, V[i + 1] = v[i].Y;
	ll sol = -INF;
	for(int i = m;i <= n;i++)
		sol = max(sol, f(i, m) - 2LL * C[i]);
	printf("%lld\n", sol);
}

Compilation message

cake3.cpp: In function 'int main()':
cake3.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
cake3.cpp:34:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int x, y; scanf("%d%d", &x, &y);
             ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	33144 KB	Output is correct
2	Correct	19 ms	33152 KB	Output is correct
3	Correct	20 ms	33152 KB	Output is correct
4	Correct	21 ms	33152 KB	Output is correct
5	Correct	23 ms	33152 KB	Output is correct
6	Correct	23 ms	33152 KB	Output is correct
7	Correct	21 ms	33280 KB	Output is correct
8	Correct	19 ms	33152 KB	Output is correct
9	Correct	24 ms	33152 KB	Output is correct
10	Correct	20 ms	33144 KB	Output is correct
11	Correct	22 ms	33152 KB	Output is correct
12	Correct	22 ms	33152 KB	Output is correct
13	Correct	26 ms	33184 KB	Output is correct
14	Correct	22 ms	33152 KB	Output is correct
15	Correct	23 ms	33272 KB	Output is correct
16	Correct	22 ms	33152 KB	Output is correct
17	Correct	22 ms	33152 KB	Output is correct
18	Correct	25 ms	33152 KB	Output is correct
19	Correct	22 ms	33152 KB	Output is correct
20	Correct	22 ms	33152 KB	Output is correct
21	Correct	22 ms	33152 KB	Output is correct
22	Correct	22 ms	33148 KB	Output is correct
23	Correct	22 ms	33280 KB	Output is correct
24	Correct	22 ms	33144 KB	Output is correct
25	Correct	22 ms	33152 KB	Output is correct
26	Correct	27 ms	33152 KB	Output is correct
27	Correct	22 ms	33152 KB	Output is correct
28	Correct	27 ms	33144 KB	Output is correct
29	Correct	22 ms	33152 KB	Output is correct
30	Correct	23 ms	33280 KB	Output is correct
31	Correct	26 ms	33152 KB	Output is correct
32	Correct	25 ms	33152 KB	Output is correct
33	Correct	19 ms	33152 KB	Output is correct
34	Correct	23 ms	33152 KB	Output is correct
35	Correct	20 ms	33280 KB	Output is correct
36	Correct	26 ms	33152 KB	Output is correct
37	Correct	23 ms	33152 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	33144 KB	Output is correct
2	Correct	19 ms	33152 KB	Output is correct
3	Correct	20 ms	33152 KB	Output is correct
4	Correct	21 ms	33152 KB	Output is correct
5	Correct	23 ms	33152 KB	Output is correct
6	Correct	23 ms	33152 KB	Output is correct
7	Correct	21 ms	33280 KB	Output is correct
8	Correct	19 ms	33152 KB	Output is correct
9	Correct	24 ms	33152 KB	Output is correct
10	Correct	20 ms	33144 KB	Output is correct
11	Correct	22 ms	33152 KB	Output is correct
12	Correct	22 ms	33152 KB	Output is correct
13	Correct	26 ms	33184 KB	Output is correct
14	Correct	22 ms	33152 KB	Output is correct
15	Correct	23 ms	33272 KB	Output is correct
16	Correct	22 ms	33152 KB	Output is correct
17	Correct	22 ms	33152 KB	Output is correct
18	Correct	25 ms	33152 KB	Output is correct
19	Correct	22 ms	33152 KB	Output is correct
20	Correct	22 ms	33152 KB	Output is correct
21	Correct	22 ms	33152 KB	Output is correct
22	Correct	22 ms	33148 KB	Output is correct
23	Correct	22 ms	33280 KB	Output is correct
24	Correct	22 ms	33144 KB	Output is correct
25	Correct	22 ms	33152 KB	Output is correct
26	Correct	27 ms	33152 KB	Output is correct
27	Correct	22 ms	33152 KB	Output is correct
28	Correct	27 ms	33144 KB	Output is correct
29	Correct	22 ms	33152 KB	Output is correct
30	Correct	23 ms	33280 KB	Output is correct
31	Correct	26 ms	33152 KB	Output is correct
32	Correct	25 ms	33152 KB	Output is correct
33	Correct	19 ms	33152 KB	Output is correct
34	Correct	23 ms	33152 KB	Output is correct
35	Correct	20 ms	33280 KB	Output is correct
36	Correct	26 ms	33152 KB	Output is correct
37	Correct	23 ms	33152 KB	Output is correct
38	Correct	41 ms	33312 KB	Output is correct
39	Correct	48 ms	33280 KB	Output is correct
40	Correct	57 ms	33280 KB	Output is correct
41	Correct	45 ms	33272 KB	Output is correct
42	Correct	60 ms	33280 KB	Output is correct
43	Correct	54 ms	33272 KB	Output is correct
44	Correct	43 ms	33272 KB	Output is correct
45	Correct	45 ms	33280 KB	Output is correct
46	Correct	38 ms	33352 KB	Output is correct
47	Correct	30 ms	33272 KB	Output is correct
48	Correct	30 ms	33280 KB	Output is correct
49	Correct	48 ms	33280 KB	Output is correct
50	Correct	46 ms	33280 KB	Output is correct
51	Correct	49 ms	33400 KB	Output is correct
52	Correct	46 ms	33280 KB	Output is correct
53	Correct	46 ms	33280 KB	Output is correct
54	Correct	53 ms	33280 KB	Output is correct
55	Correct	54 ms	33280 KB	Output is correct
56	Correct	53 ms	33280 KB	Output is correct
57	Correct	52 ms	33280 KB	Output is correct
58	Correct	51 ms	33280 KB	Output is correct
59	Correct	40 ms	33280 KB	Output is correct
60	Correct	37 ms	33408 KB	Output is correct
61	Correct	41 ms	33280 KB	Output is correct
62	Correct	50 ms	33280 KB	Output is correct
63	Correct	59 ms	33280 KB	Output is correct
64	Correct	47 ms	33400 KB	Output is correct
65	Correct	39 ms	33280 KB	Output is correct
66	Correct	44 ms	33400 KB	Output is correct
67	Correct	34 ms	33280 KB	Output is correct
68	Correct	46 ms	33280 KB	Output is correct
69	Correct	50 ms	33280 KB	Output is correct
70	Correct	46 ms	33280 KB	Output is correct
71	Correct	29 ms	33312 KB	Output is correct
72	Correct	51 ms	33280 KB	Output is correct
73	Correct	33 ms	33280 KB	Output is correct
74	Correct	62 ms	33408 KB	Output is correct

Subtask #3
0 / 76.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	33144 KB	Output is correct
2	Correct	19 ms	33152 KB	Output is correct
3	Correct	20 ms	33152 KB	Output is correct
4	Correct	21 ms	33152 KB	Output is correct
5	Correct	23 ms	33152 KB	Output is correct
6	Correct	23 ms	33152 KB	Output is correct
7	Correct	21 ms	33280 KB	Output is correct
8	Correct	19 ms	33152 KB	Output is correct
9	Correct	24 ms	33152 KB	Output is correct
10	Correct	20 ms	33144 KB	Output is correct
11	Correct	22 ms	33152 KB	Output is correct
12	Correct	22 ms	33152 KB	Output is correct
13	Correct	26 ms	33184 KB	Output is correct
14	Correct	22 ms	33152 KB	Output is correct
15	Correct	23 ms	33272 KB	Output is correct
16	Correct	22 ms	33152 KB	Output is correct
17	Correct	22 ms	33152 KB	Output is correct
18	Correct	25 ms	33152 KB	Output is correct
19	Correct	22 ms	33152 KB	Output is correct
20	Correct	22 ms	33152 KB	Output is correct
21	Correct	22 ms	33152 KB	Output is correct
22	Correct	22 ms	33148 KB	Output is correct
23	Correct	22 ms	33280 KB	Output is correct
24	Correct	22 ms	33144 KB	Output is correct
25	Correct	22 ms	33152 KB	Output is correct
26	Correct	27 ms	33152 KB	Output is correct
27	Correct	22 ms	33152 KB	Output is correct
28	Correct	27 ms	33144 KB	Output is correct
29	Correct	22 ms	33152 KB	Output is correct
30	Correct	23 ms	33280 KB	Output is correct
31	Correct	26 ms	33152 KB	Output is correct
32	Correct	25 ms	33152 KB	Output is correct
33	Correct	19 ms	33152 KB	Output is correct
34	Correct	23 ms	33152 KB	Output is correct
35	Correct	20 ms	33280 KB	Output is correct
36	Correct	26 ms	33152 KB	Output is correct
37	Correct	23 ms	33152 KB	Output is correct
38	Correct	41 ms	33312 KB	Output is correct
39	Correct	48 ms	33280 KB	Output is correct
40	Correct	57 ms	33280 KB	Output is correct
41	Correct	45 ms	33272 KB	Output is correct
42	Correct	60 ms	33280 KB	Output is correct
43	Correct	54 ms	33272 KB	Output is correct
44	Correct	43 ms	33272 KB	Output is correct
45	Correct	45 ms	33280 KB	Output is correct
46	Correct	38 ms	33352 KB	Output is correct
47	Correct	30 ms	33272 KB	Output is correct
48	Correct	30 ms	33280 KB	Output is correct
49	Correct	48 ms	33280 KB	Output is correct
50	Correct	46 ms	33280 KB	Output is correct
51	Correct	49 ms	33400 KB	Output is correct
52	Correct	46 ms	33280 KB	Output is correct
53	Correct	46 ms	33280 KB	Output is correct
54	Correct	53 ms	33280 KB	Output is correct
55	Correct	54 ms	33280 KB	Output is correct
56	Correct	53 ms	33280 KB	Output is correct
57	Correct	52 ms	33280 KB	Output is correct
58	Correct	51 ms	33280 KB	Output is correct
59	Correct	40 ms	33280 KB	Output is correct
60	Correct	37 ms	33408 KB	Output is correct
61	Correct	41 ms	33280 KB	Output is correct
62	Correct	50 ms	33280 KB	Output is correct
63	Correct	59 ms	33280 KB	Output is correct
64	Correct	47 ms	33400 KB	Output is correct
65	Correct	39 ms	33280 KB	Output is correct
66	Correct	44 ms	33400 KB	Output is correct
67	Correct	34 ms	33280 KB	Output is correct
68	Correct	46 ms	33280 KB	Output is correct
69	Correct	50 ms	33280 KB	Output is correct
70	Correct	46 ms	33280 KB	Output is correct
71	Correct	29 ms	33312 KB	Output is correct
72	Correct	51 ms	33280 KB	Output is correct
73	Correct	33 ms	33280 KB	Output is correct
74	Correct	62 ms	33408 KB	Output is correct
75	Runtime error	152 ms	73828 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
76	Halted	0 ms	0 KB	-

답안 #261938

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 19.0 / 19.0

Subtask #3 0 / 76.0

Subtask #1
5.0 / 5.0

Subtask #2
19.0 / 19.0

Subtask #3
0 / 76.0