oj.uz

Submission #803268

# Submission time Handle Problem Language Result Execution time Memory
803268 2023-08-03T02:56:57 Z Username4132 Mountains (IOI17_mountains) C++14
100 / 100
 25 ms 14164 KB 
#include "mountains.h"
#include <vector>
using namespace std;
using ll = long long;
#define forn(i, n) for(int i=0; i<(int)n; ++i)
#define forsn(i, s, n) for(int i=s; i<(int)n; ++i)
#define dforn(i, n) for(int i=n-1; i>=0; --i)
 
const int MAXN = 2010;
int n, dp[MAXN][MAXN];
 
bool clockwise(ll ax, ll bx, ll cx, ll ay, ll by, ll cy){
	return (ax*by + bx*cy + cx*ay - ay*bx - by*cx - cy*ax)>=0;
}
 
int maximum_deevs(vector<int> y) {
	n = y.size();
	dp[0][1]=1;
	forsn(i, 1, n){
		int lst = i-1, sum=1;
		dp[i][i+1]=1;
		dforn(j, i){
			if(clockwise(j, lst, i, y[j], y[lst], y[i])){
				sum+=dp[j+1][lst];
				lst=j;
			}
			dp[j][i+1]=max(sum+dp[j][lst], dp[j][i]);
		}
	}
	return dp[0][n];
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 284 KB Output is correct
16 Correct 0 ms 296 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 284 KB Output is correct
16 Correct 0 ms 296 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 432 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 424 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 428 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 432 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 0 ms 340 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 284 KB Output is correct
16 Correct 0 ms 296 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 432 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 424 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 428 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 432 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 1064 KB Output is correct
40 Correct 1 ms 1620 KB Output is correct
41 Correct 1 ms 1620 KB Output is correct
42 Correct 1 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 1 ms 1620 KB Output is correct
46 Correct 1 ms 1620 KB Output is correct
47 Correct 1 ms 1620 KB Output is correct
48 Correct 1 ms 1564 KB Output is correct
49 Correct 2 ms 1620 KB Output is correct
50 Correct 1 ms 1580 KB Output is correct
51 Correct 1 ms 1620 KB Output is correct
52 Correct 1 ms 1576 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 1620 KB Output is correct
57 Correct 1 ms 1584 KB Output is correct
58 Correct 1 ms 1580 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 1620 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 284 KB Output is correct
16 Correct 0 ms 296 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 432 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 424 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 428 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 432 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 1064 KB Output is correct
40 Correct 1 ms 1620 KB Output is correct
41 Correct 1 ms 1620 KB Output is correct
42 Correct 1 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 1 ms 1620 KB Output is correct
46 Correct 1 ms 1620 KB Output is correct
47 Correct 1 ms 1620 KB Output is correct
48 Correct 1 ms 1564 KB Output is correct
49 Correct 2 ms 1620 KB Output is correct
50 Correct 1 ms 1580 KB Output is correct
51 Correct 1 ms 1620 KB Output is correct
52 Correct 1 ms 1576 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 1620 KB Output is correct
57 Correct 1 ms 1584 KB Output is correct
58 Correct 1 ms 1580 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 1620 KB Output is correct
62 Correct 6 ms 6228 KB Output is correct
63 Correct 13 ms 14144 KB Output is correct
64 Correct 14 ms 14136 KB Output is correct
65 Correct 14 ms 14136 KB Output is correct
66 Correct 21 ms 14132 KB Output is correct
67 Correct 14 ms 14164 KB Output is correct
68 Correct 13 ms 14036 KB Output is correct
69 Correct 14 ms 14060 KB Output is correct
70 Correct 17 ms 14060 KB Output is correct
71 Correct 18 ms 14056 KB Output is correct
72 Correct 18 ms 14164 KB Output is correct
73 Correct 18 ms 14144 KB Output is correct
74 Correct 18 ms 14132 KB Output is correct
75 Correct 24 ms 14164 KB Output is correct
76 Correct 15 ms 14124 KB Output is correct
77 Correct 25 ms 14036 KB Output is correct
78 Correct 22 ms 14092 KB Output is correct
79 Correct 22 ms 14108 KB Output is correct
80 Correct 21 ms 14036 KB Output is correct
81 Correct 24 ms 14036 KB Output is correct
82 Correct 14 ms 14056 KB Output is correct
83 Correct 15 ms 14028 KB Output is correct
84 Correct 15 ms 14036 KB Output is correct
85 Correct 13 ms 14048 KB Output is correct
86 Correct 14 ms 14164 KB Output is correct