답안 #652428

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
652428	2022-10-22T15:03:09 Z	JooDdae	Mountains (IOI17_mountains)	C++17	100 / 100	29 ms	14216 KB

mountains

#include "mountains.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

struct point{
   ll x, y;
   bool operator < (const point &a)const{
       return tie(x, y) < tie(a.x, a.y);
   }
   bool operator <= (const point &a)const{
       return tie(x, y) <= tie(a.x, a.y);
   }
   point operator - (const point &a)const{
       return {x-a.x, y-a.y};
   }
   bool operator == (const point &a)const{
       return tie(x, y) == tie(a.x, a.y);
   }
};

ll cross(point a, point b){
   return a.x * b.y - a.y * b.x;
}
int ccw(point a, point b, point c){
   ll re = cross(b-a, c-a);
   return re > 0 ? 1 : re < 0 ? -1 : 0;
}

int dp[2020][2020];

int maximum_deevs(vector<int> y) {
    int n = y.size();

    for(int i=1;i<=n;i++) {
        dp[i][i] = dp[i][i-1] = 1;
        for(int j=i-2, k=i-1, s=1;j>=1;j--) {
            if(ccw({j, y[j-1]}, {k, y[k-1]}, {i, y[i-1]}) >= 0) {
                s += dp[k-1][j+1], k = j;
            } else {
                dp[i][j] += dp[k-1][j];
            }
            dp[i][j] = max(dp[i-1][j], dp[i][j]+s);
        }
    }
    
    return dp[n][1];
}

Subtask #1
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	304 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	312 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	308 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	304 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	312 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	308 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	1 ms	436 KB	Output is correct
19	Correct	1 ms	436 KB	Output is correct
20	Correct	1 ms	468 KB	Output is correct
21	Correct	1 ms	468 KB	Output is correct
22	Correct	1 ms	468 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	436 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	1 ms	468 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	380 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	432 KB	Output is correct
35	Correct	1 ms	432 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	468 KB	Output is correct
38	Correct	1 ms	436 KB	Output is correct

Subtask #3
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	304 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	312 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	308 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	1 ms	436 KB	Output is correct
19	Correct	1 ms	436 KB	Output is correct
20	Correct	1 ms	468 KB	Output is correct
21	Correct	1 ms	468 KB	Output is correct
22	Correct	1 ms	468 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	436 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	1 ms	468 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	380 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	432 KB	Output is correct
35	Correct	1 ms	432 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	468 KB	Output is correct
38	Correct	1 ms	436 KB	Output is correct
39	Correct	1 ms	1108 KB	Output is correct
40	Correct	1 ms	1588 KB	Output is correct
41	Correct	1 ms	1588 KB	Output is correct
42	Correct	2 ms	1620 KB	Output is correct
43	Correct	1 ms	1620 KB	Output is correct
44	Correct	1 ms	1620 KB	Output is correct
45	Correct	2 ms	1588 KB	Output is correct
46	Correct	2 ms	1620 KB	Output is correct
47	Correct	2 ms	1588 KB	Output is correct
48	Correct	2 ms	1588 KB	Output is correct
49	Correct	1 ms	1620 KB	Output is correct
50	Correct	1 ms	1620 KB	Output is correct
51	Correct	1 ms	1620 KB	Output is correct
52	Correct	1 ms	1620 KB	Output is correct
53	Correct	1 ms	1620 KB	Output is correct
54	Correct	1 ms	1620 KB	Output is correct
55	Correct	2 ms	1620 KB	Output is correct
56	Correct	1 ms	1584 KB	Output is correct
57	Correct	2 ms	1620 KB	Output is correct
58	Correct	1 ms	1620 KB	Output is correct
59	Correct	1 ms	1620 KB	Output is correct
60	Correct	1 ms	1620 KB	Output is correct
61	Correct	1 ms	1588 KB	Output is correct

Subtask #4
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	304 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	312 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	308 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	1 ms	436 KB	Output is correct
19	Correct	1 ms	436 KB	Output is correct
20	Correct	1 ms	468 KB	Output is correct
21	Correct	1 ms	468 KB	Output is correct
22	Correct	1 ms	468 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	436 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	1 ms	468 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	380 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	432 KB	Output is correct
35	Correct	1 ms	432 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	468 KB	Output is correct
38	Correct	1 ms	436 KB	Output is correct
39	Correct	1 ms	1108 KB	Output is correct
40	Correct	1 ms	1588 KB	Output is correct
41	Correct	1 ms	1588 KB	Output is correct
42	Correct	2 ms	1620 KB	Output is correct
43	Correct	1 ms	1620 KB	Output is correct
44	Correct	1 ms	1620 KB	Output is correct
45	Correct	2 ms	1588 KB	Output is correct
46	Correct	2 ms	1620 KB	Output is correct
47	Correct	2 ms	1588 KB	Output is correct
48	Correct	2 ms	1588 KB	Output is correct
49	Correct	1 ms	1620 KB	Output is correct
50	Correct	1 ms	1620 KB	Output is correct
51	Correct	1 ms	1620 KB	Output is correct
52	Correct	1 ms	1620 KB	Output is correct
53	Correct	1 ms	1620 KB	Output is correct
54	Correct	1 ms	1620 KB	Output is correct
55	Correct	2 ms	1620 KB	Output is correct
56	Correct	1 ms	1584 KB	Output is correct
57	Correct	2 ms	1620 KB	Output is correct
58	Correct	1 ms	1620 KB	Output is correct
59	Correct	1 ms	1620 KB	Output is correct
60	Correct	1 ms	1620 KB	Output is correct
61	Correct	1 ms	1588 KB	Output is correct
62	Correct	5 ms	6228 KB	Output is correct
63	Correct	15 ms	14164 KB	Output is correct
64	Correct	13 ms	14120 KB	Output is correct
65	Correct	15 ms	14160 KB	Output is correct
66	Correct	14 ms	14164 KB	Output is correct
67	Correct	13 ms	14136 KB	Output is correct
68	Correct	13 ms	14164 KB	Output is correct
69	Correct	18 ms	14148 KB	Output is correct
70	Correct	16 ms	14172 KB	Output is correct
71	Correct	15 ms	14168 KB	Output is correct
72	Correct	15 ms	14096 KB	Output is correct
73	Correct	16 ms	14164 KB	Output is correct
74	Correct	16 ms	14200 KB	Output is correct
75	Correct	15 ms	14164 KB	Output is correct
76	Correct	13 ms	14140 KB	Output is correct
77	Correct	22 ms	14164 KB	Output is correct
78	Correct	26 ms	14064 KB	Output is correct
79	Correct	22 ms	14080 KB	Output is correct
80	Correct	29 ms	14172 KB	Output is correct
81	Correct	22 ms	14156 KB	Output is correct
82	Correct	13 ms	14216 KB	Output is correct
83	Correct	14 ms	14164 KB	Output is correct
84	Correct	13 ms	14164 KB	Output is correct
85	Correct	14 ms	14188 KB	Output is correct
86	Correct	14 ms	14204 KB	Output is correct

답안 #652428

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 20.0 / 20.0

Subtask #3 30.0 / 30.0

Subtask #4 30.0 / 30.0

Subtask #1
20.0 / 20.0

Subtask #2
20.0 / 20.0

Subtask #3
30.0 / 30.0

Subtask #4
30.0 / 30.0