Submission #543759

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
543759	2022-03-31T10:23:15 Z	Asymmetry	Group Photo (JOI21_ho_t3)	C++17	64 / 100	5000 ms	98548 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;
	for (int i = l; i <= r; ++i) {
		// ile na lewo od wartości i jest w przedziale wartości <r + 1, n>
		ret += sum[i][n] - sum[i][r];
		// ile na lewo od wartości i jest w przedziale wartości <l, i - 1>
		ret += nas[i] - sum[i][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 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:33:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
Main.cpp:35:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |   scanf("%d", &t[i]);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 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	1 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 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	1 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	0 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	1 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct

Subtask #3
32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 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	1 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	0 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	1 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct
21	Correct	3 ms	1288 KB	Output is correct
22	Correct	5 ms	1236 KB	Output is correct
23	Correct	3 ms	1236 KB	Output is correct
24	Correct	3 ms	1236 KB	Output is correct
25	Correct	3 ms	1236 KB	Output is correct
26	Correct	4 ms	1236 KB	Output is correct
27	Correct	3 ms	1308 KB	Output is correct
28	Correct	3 ms	1236 KB	Output is correct
29	Correct	3 ms	1236 KB	Output is correct
30	Correct	3 ms	1236 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 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	1 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	0 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	1 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct
21	Correct	3 ms	1288 KB	Output is correct
22	Correct	5 ms	1236 KB	Output is correct
23	Correct	3 ms	1236 KB	Output is correct
24	Correct	3 ms	1236 KB	Output is correct
25	Correct	3 ms	1236 KB	Output is correct
26	Correct	4 ms	1236 KB	Output is correct
27	Correct	3 ms	1308 KB	Output is correct
28	Correct	3 ms	1236 KB	Output is correct
29	Correct	3 ms	1236 KB	Output is correct
30	Correct	3 ms	1236 KB	Output is correct
31	Correct	199 ms	5972 KB	Output is correct
32	Correct	198 ms	6032 KB	Output is correct
33	Correct	190 ms	6036 KB	Output is correct
34	Correct	188 ms	6048 KB	Output is correct
35	Correct	233 ms	6092 KB	Output is correct
36	Correct	189 ms	6052 KB	Output is correct
37	Correct	183 ms	6056 KB	Output is correct
38	Correct	186 ms	6052 KB	Output is correct
39	Correct	230 ms	6048 KB	Output is correct
40	Correct	198 ms	6048 KB	Output is correct

Subtask #5
0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 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	1 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	0 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	1 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct
21	Correct	3 ms	1288 KB	Output is correct
22	Correct	5 ms	1236 KB	Output is correct
23	Correct	3 ms	1236 KB	Output is correct
24	Correct	3 ms	1236 KB	Output is correct
25	Correct	3 ms	1236 KB	Output is correct
26	Correct	4 ms	1236 KB	Output is correct
27	Correct	3 ms	1308 KB	Output is correct
28	Correct	3 ms	1236 KB	Output is correct
29	Correct	3 ms	1236 KB	Output is correct
30	Correct	3 ms	1236 KB	Output is correct
31	Correct	199 ms	5972 KB	Output is correct
32	Correct	198 ms	6032 KB	Output is correct
33	Correct	190 ms	6036 KB	Output is correct
34	Correct	188 ms	6048 KB	Output is correct
35	Correct	233 ms	6092 KB	Output is correct
36	Correct	189 ms	6052 KB	Output is correct
37	Correct	183 ms	6056 KB	Output is correct
38	Correct	186 ms	6052 KB	Output is correct
39	Correct	230 ms	6048 KB	Output is correct
40	Correct	198 ms	6048 KB	Output is correct
41	Execution timed out	5087 ms	98548 KB	Time limit exceeded
42	Halted	0 ms	0 KB	-

Submission #543759

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 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
0 / 36.0