답안 #397698

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
397698	2021-05-02T21:50:11 Z	ChrisT	Group Photo (JOI21_ho_t3)	C++17	100 / 100	454 ms	98692 KB

Main

#include <bits/stdc++.h>
using namespace std;
const int MN = 5e3 + 5;
int dp[MN], f[MN][MN], a[MN], stopAt[MN];
int main () {
	int n; scanf ("%d",&n);
	for (int i = 1; i <= n; i++) scanf ("%d",&a[i]);
	for (int i = 1; i <= n; i++) {
		for (int j = i+1; j <= n; j++) {
			if (a[i] < a[j]) {
				f[1][a[j]]++; f[a[i]+1][a[j]]--;
			} else {
				f[a[j]+1][a[i]]++; f[a[i]+1][a[i]]--;
			}
		}
	}
	for (int i = 1; i <= n; i++) 
		for (int j = 1; j <= n; j++) 
			f[i][j] += f[i-1][j] + f[i][j-1] - f[i-1][j-1];
	for (int i = 1; i <= n; i++) {
		dp[i] = 1e9;
		for (int j = i; j >= 1; j--) dp[i] = min(dp[i],dp[j-1]+f[j][i]);
	}
	printf ("%d\n",dp[n]);
	return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:6:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    6 |  int n; scanf ("%d",&n);
      |         ~~~~~~^~~~~~~~~
Main.cpp:7:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    7 |  for (int i = 1; i <= n; i++) scanf ("%d",&a[i]);
      |                               ~~~~~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	2 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	2 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	308 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	2 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	2 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	308 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	1228 KB	Output is correct
22	Correct	1 ms	1208 KB	Output is correct
23	Correct	1 ms	1228 KB	Output is correct
24	Correct	1 ms	1228 KB	Output is correct
25	Correct	1 ms	1200 KB	Output is correct
26	Correct	1 ms	1228 KB	Output is correct
27	Correct	2 ms	1228 KB	Output is correct
28	Correct	1 ms	1228 KB	Output is correct
29	Correct	1 ms	1204 KB	Output is correct
30	Correct	1 ms	1200 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	2 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	2 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	308 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	1228 KB	Output is correct
22	Correct	1 ms	1208 KB	Output is correct
23	Correct	1 ms	1228 KB	Output is correct
24	Correct	1 ms	1228 KB	Output is correct
25	Correct	1 ms	1200 KB	Output is correct
26	Correct	1 ms	1228 KB	Output is correct
27	Correct	2 ms	1228 KB	Output is correct
28	Correct	1 ms	1228 KB	Output is correct
29	Correct	1 ms	1204 KB	Output is correct
30	Correct	1 ms	1200 KB	Output is correct
31	Correct	9 ms	5964 KB	Output is correct
32	Correct	8 ms	5964 KB	Output is correct
33	Correct	10 ms	5964 KB	Output is correct
34	Correct	8 ms	5964 KB	Output is correct
35	Correct	8 ms	5964 KB	Output is correct
36	Correct	9 ms	5964 KB	Output is correct
37	Correct	9 ms	6008 KB	Output is correct
38	Correct	8 ms	5964 KB	Output is correct
39	Correct	9 ms	5964 KB	Output is correct
40	Correct	8 ms	5964 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	2 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	2 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	308 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	1228 KB	Output is correct
22	Correct	1 ms	1208 KB	Output is correct
23	Correct	1 ms	1228 KB	Output is correct
24	Correct	1 ms	1228 KB	Output is correct
25	Correct	1 ms	1200 KB	Output is correct
26	Correct	1 ms	1228 KB	Output is correct
27	Correct	2 ms	1228 KB	Output is correct
28	Correct	1 ms	1228 KB	Output is correct
29	Correct	1 ms	1204 KB	Output is correct
30	Correct	1 ms	1200 KB	Output is correct
31	Correct	9 ms	5964 KB	Output is correct
32	Correct	8 ms	5964 KB	Output is correct
33	Correct	10 ms	5964 KB	Output is correct
34	Correct	8 ms	5964 KB	Output is correct
35	Correct	8 ms	5964 KB	Output is correct
36	Correct	9 ms	5964 KB	Output is correct
37	Correct	9 ms	6008 KB	Output is correct
38	Correct	8 ms	5964 KB	Output is correct
39	Correct	9 ms	5964 KB	Output is correct
40	Correct	8 ms	5964 KB	Output is correct
41	Correct	444 ms	98216 KB	Output is correct
42	Correct	443 ms	98448 KB	Output is correct
43	Correct	449 ms	98308 KB	Output is correct
44	Correct	444 ms	98280 KB	Output is correct
45	Correct	452 ms	98356 KB	Output is correct
46	Correct	442 ms	98288 KB	Output is correct
47	Correct	444 ms	98400 KB	Output is correct
48	Correct	448 ms	98392 KB	Output is correct
49	Correct	441 ms	98372 KB	Output is correct
50	Correct	448 ms	98312 KB	Output is correct
51	Correct	450 ms	98356 KB	Output is correct
52	Correct	447 ms	98692 KB	Output is correct
53	Correct	454 ms	98296 KB	Output is correct
54	Correct	448 ms	98432 KB	Output is correct
55	Correct	453 ms	98372 KB	Output is correct

답안 #397698

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 36.0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
36.0 / 36.0