oj.uz

Submission #427288

# Submission time Handle Problem Language Result Execution time Memory
427288 2021-06-14T13:56:41 Z model_code Brackets (CPSPC17_brackets) C++17
48 / 100
 500 ms 132080 KB 
# include <bits/stdc++.h>

using namespace std;
const int MN = 201;
vector <pair <int, char> > opening[MN], closing[MN];
typedef long long res_t;
char val[128];
const res_t inf = 1e18;
//a, b, c, d --> dp[a][d] min= dp[b][c] + 2
//-1 i, k, l --> dp[i][k] min= dp[i][j] + dp[j][k]
struct rule {
	int a, b, c, d;
	rule(int a_, int b_, int c_, int d_) : a(a_), b(b_), c(c_), d(d_) {}
};
vector <rule> rules;
res_t dp[MN][MN];
int main() {
	val['('] = 1;
	val[')'] = -1;
	val['<'] = 2;
	val['>'] = -2;
	val['['] = 3;
	val[']'] = -3;
	val['{'] = 4;
	val['}'] = -4;
	int n, m, s, t;
	scanf("%d%d%d%d", &n, &m, &s, &t);
	for (int i = 0; i < m; ++i) {
		int x, y;
		char c;
		scanf("%d%d %c", &x, &y, &c);
		c = val[(int)c];
		if (c > 0)
			opening[x].push_back(make_pair(y, c));
		else
			closing[x].push_back(make_pair(y, -c));
	}
	for (int i = 1; i <= n; ++i)
		for (int k = 1; k <= n; ++k)
			dp[i][k] = inf;
	for (int i = 1; i <= n; ++i)
		dp[i][i] = 0;
	for (int i = 1; i <= n; ++i)
		for (int k = 1; k <= n; ++k) 
			for (auto x : opening[i])
				for (auto y : closing[k])
					if (x.second == y.second)
						rules.emplace_back(i, x.first, k, y.first);
	for (int i = 1; i <= n; ++i)
		for (int k = 1; k <= n; ++k)
			for (int l = 1; l <= n; ++l)
				rules.emplace_back(-1, i, k, l);
	random_shuffle(rules.begin(), rules.end());
	bool changed = true;
	while (changed) {
		changed = false;
		for (auto rule : rules) {
			if (rule.a == -1) {
				if (dp[rule.b][rule.d] > dp[rule.b][rule.c] + dp[rule.c][rule.d]) {
					dp[rule.b][rule.d] = dp[rule.b][rule.c] + dp[rule.c][rule.d];
					changed = true;
				}
			}
			else {
				if (dp[rule.a][rule.d] > dp[rule.b][rule.c] + 2) {
					dp[rule.a][rule.d] = dp[rule.b][rule.c] + 2;
					changed = true;
				}
			}
		}
	}
	if (dp[s][t] == inf)
		printf("-1\n");
	else
		printf("%lld\n", dp[s][t]);
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |  scanf("%d%d%d%d", &n, &m, &s, &t);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:31:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |   scanf("%d%d %c", &x, &y, &c);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory 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 2 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 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory 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 2 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 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 716 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 2 ms 588 KB Output is correct
17 Correct 1 ms 716 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 716 KB Output is correct
21 Correct 1 ms 716 KB Output is correct
22 Correct 1 ms 716 KB Output is correct
23 Correct 2 ms 588 KB Output is correct
24 Correct 4 ms 716 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory 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 2 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 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 716 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 2 ms 588 KB Output is correct
17 Correct 1 ms 716 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 716 KB Output is correct
21 Correct 1 ms 716 KB Output is correct
22 Correct 1 ms 716 KB Output is correct
23 Correct 2 ms 588 KB Output is correct
24 Correct 4 ms 716 KB Output is correct
25 Correct 21 ms 2520 KB Output is correct
26 Correct 8 ms 2496 KB Output is correct
27 Correct 185 ms 4668 KB Output is correct
28 Correct 8 ms 2496 KB Output is correct
29 Correct 9 ms 4540 KB Output is correct
30 Correct 33 ms 8736 KB Output is correct
31 Correct 86 ms 2496 KB Output is correct
32 Correct 9 ms 2496 KB Output is correct
33 Correct 10 ms 2496 KB Output is correct
34 Correct 15 ms 2496 KB Output is correct
35 Correct 24 ms 8760 KB Output is correct
36 Correct 12 ms 4540 KB Output is correct

Subtask #4
0 / 16.0

# Verdict Execution time Memory 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 2 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 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 716 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 2 ms 588 KB Output is correct
17 Correct 1 ms 716 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 716 KB Output is correct
21 Correct 1 ms 716 KB Output is correct
22 Correct 1 ms 716 KB Output is correct
23 Correct 2 ms 588 KB Output is correct
24 Correct 4 ms 716 KB Output is correct
25 Correct 21 ms 2520 KB Output is correct
26 Correct 8 ms 2496 KB Output is correct
27 Correct 185 ms 4668 KB Output is correct
28 Correct 8 ms 2496 KB Output is correct
29 Correct 9 ms 4540 KB Output is correct
30 Correct 33 ms 8736 KB Output is correct
31 Correct 86 ms 2496 KB Output is correct
32 Correct 9 ms 2496 KB Output is correct
33 Correct 10 ms 2496 KB Output is correct
34 Correct 15 ms 2496 KB Output is correct
35 Correct 24 ms 8760 KB Output is correct
36 Correct 12 ms 4540 KB Output is correct
37 Execution timed out 1091 ms 16948 KB Time limit exceeded
38 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1102 ms 132080 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 26.0

# Verdict Execution time Memory 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 2 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 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 716 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 2 ms 588 KB Output is correct
17 Correct 1 ms 716 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 716 KB Output is correct
21 Correct 1 ms 716 KB Output is correct
22 Correct 1 ms 716 KB Output is correct
23 Correct 2 ms 588 KB Output is correct
24 Correct 4 ms 716 KB Output is correct
25 Correct 21 ms 2520 KB Output is correct
26 Correct 8 ms 2496 KB Output is correct
27 Correct 185 ms 4668 KB Output is correct
28 Correct 8 ms 2496 KB Output is correct
29 Correct 9 ms 4540 KB Output is correct
30 Correct 33 ms 8736 KB Output is correct
31 Correct 86 ms 2496 KB Output is correct
32 Correct 9 ms 2496 KB Output is correct
33 Correct 10 ms 2496 KB Output is correct
34 Correct 15 ms 2496 KB Output is correct
35 Correct 24 ms 8760 KB Output is correct
36 Correct 12 ms 4540 KB Output is correct
37 Execution timed out 1091 ms 16948 KB Time limit exceeded
38 Halted 0 ms 0 KB -