oj.uz

Submission #543761

# Submission time Handle Problem Language Result Execution time Memory
543761 2022-03-31T10:25:36 Z Asymmetry Group Photo (JOI21_ho_t3) C++17
100 / 100
 448 ms 98600 KB 
//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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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