답안 #543761

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
543761	2022-03-31T10:25:36 Z	Asymmetry	Group Photo (JOI21_ho_t3)	C++17	100 / 100	448 ms	98600 KB

Main

//Autor: Bartłomiej Czarkowski
#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
template<class A,class B>auto&operator<<(ostream&o,pair<A,B>p){return o<<'('<<p.first<<", "<<p.second<<')';}
template<class T>auto operator<<(ostream&o,T x)->decltype(x.end(),o){o<<'{';int i=0;for(auto e:x)o<<(", ")+2*!i++<<e;return o<<'}';}
#define debug(x...) cerr<<"["#x"]: ",[](auto...$){((cerr<<$<<"; "),...);}(x),cerr<<'\n'
#else
#define debug(...) {}
#endif

const int N = 5010;
int n;
int t[N];
int p[N];
int dp[N];
int nas[N];
int sum[N][N];

int wylicz(int l, int r) {
	int ret = 0;
	ret += sum[r][n] - sum[l - 1][n] - sum[r][r] + sum[l - 1][r];
	ret += nas[r] - nas[l - 1] - sum[r][l - 1] + sum[l - 1][l - 1];
	debug(l, r, ret);
	return ret;
}

int main() {
	scanf("%d", &n);
	for (int i = 1; i <= n; ++i) {
		scanf("%d", &t[i]);
		p[t[i]] = i;
	}
	for (int i = 1; i <= n; ++i) { // pozycja
		for (int j = 1; j < i; ++j) {
			if (t[j] < t[i]) {
				++nas[t[i]];
			}
		}
		for (int j = 1; j < i; ++j) {
			++sum[t[i]][t[j]];
		}
		for (int j = 1; j <= n; ++j) {
			sum[t[i]][j] += sum[t[i]][j - 1];
		}
	}
	for (int i = 1; i <= n; ++i) {
		nas[i] += nas[i - 1];
		for (int j = 1; j <= n; ++j) {
			sum[i][j] += sum[i - 1][j];
		}
	}
	for (int r = 1; r <= n; ++r) {
		dp[r] = 1e9;
		for (int l = r; l; --l) {
			dp[r] = min(dp[r], dp[l - 1] + wylicz(l, r));
		}
	}
	printf("%d\n", dp[n]);
	return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
Main.cpp:31:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |   scanf("%d", &t[i]);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 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	1 ms	340 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 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	1 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	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 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	1 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	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	340 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	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	2 ms	1236 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 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	1 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	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	340 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	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	2 ms	1236 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	9 ms	5972 KB	Output is correct
32	Correct	7 ms	6044 KB	Output is correct
33	Correct	9 ms	6052 KB	Output is correct
34	Correct	8 ms	5972 KB	Output is correct
35	Correct	9 ms	5972 KB	Output is correct
36	Correct	7 ms	5968 KB	Output is correct
37	Correct	8 ms	5972 KB	Output is correct
38	Correct	8 ms	5972 KB	Output is correct
39	Correct	8 ms	6040 KB	Output is correct
40	Correct	11 ms	5972 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 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	1 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	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	340 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	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	2 ms	1236 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	9 ms	5972 KB	Output is correct
32	Correct	7 ms	6044 KB	Output is correct
33	Correct	9 ms	6052 KB	Output is correct
34	Correct	8 ms	5972 KB	Output is correct
35	Correct	9 ms	5972 KB	Output is correct
36	Correct	7 ms	5968 KB	Output is correct
37	Correct	8 ms	5972 KB	Output is correct
38	Correct	8 ms	5972 KB	Output is correct
39	Correct	8 ms	6040 KB	Output is correct
40	Correct	11 ms	5972 KB	Output is correct
41	Correct	437 ms	98600 KB	Output is correct
42	Correct	448 ms	98464 KB	Output is correct
43	Correct	413 ms	98412 KB	Output is correct
44	Correct	419 ms	98468 KB	Output is correct
45	Correct	419 ms	98404 KB	Output is correct
46	Correct	429 ms	98428 KB	Output is correct
47	Correct	414 ms	98392 KB	Output is correct
48	Correct	414 ms	98432 KB	Output is correct
49	Correct	422 ms	98508 KB	Output is correct
50	Correct	430 ms	98428 KB	Output is correct
51	Correct	429 ms	98508 KB	Output is correct
52	Correct	411 ms	98548 KB	Output is correct
53	Correct	409 ms	98416 KB	Output is correct
54	Correct	420 ms	98376 KB	Output is correct
55	Correct	424 ms	98432 KB	Output is correct

답안 #543761

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