oj.uz

Submission #547412

# Submission time Handle Problem Language Result Execution time Memory
547412 2022-04-10T16:11:01 Z skittles1412 Misspelling (JOI22_misspelling) C++17
100 / 100
 586 ms 503064 KB 
#include "bits/extc++.h"

using namespace std;

template <typename T>
void dbgh(const T& t) {
	cerr << t << endl;
}

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
	cerr << t << " | ";
	dbgh(u...);
}

#ifdef DEBUG
#define dbg(...)                                           \
	cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
		 << ": ";                                          \
	dbgh(__VA_ARGS__)
#else
#define cerr   \
	if (false) \
	cerr
#define dbg(...)
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())

const long mod = 1e9 + 7;

struct DS {
	long ans = 0;
	vector<pair<int, long>> v;

	DS() {}

	void set(int ind, long x) {
		v.emplace_back(ind, x);
		ans += x;
		if (ans >= mod) {
			ans -= mod;
		}
	}

	void clear(int ind) {
		while (sz(v) && v.back().first <= ind) {
			ans -= v.back().second;
			if (ans < 0) {
				ans += mod;
			}
			v.pop_back();
		}
	}

	long query() const {
		return ans;
	}
};

void solve() {
	int n, m;
	cin >> n >> m;
	vector<pair<int, bool>> arr[n];
	for (int i = 0; i < m; i++) {
		int l, r;
		cin >> l >> r;
		l--;
		r--;
		bool lt = r < l;
		if (l > r) {
			swap(l, r);
		}
		arr[l].emplace_back(r, lt);
	}
	long dp[n][26] {};
	DS psumlt[26], psumgt[26];
	for (int i = n - 1; i >= 0; i--) {
		for (auto& [x, lt] : arr[i]) {
			if (lt) {
				for (auto& a : psumlt) {
					a.clear(x);
				}
			} else {
				for (auto& a : psumgt) {
					a.clear(x);
				}
			}
		}
		for (int j = 0; j < 26; j++) {
			dp[i][j] = (1 + psumlt[j].query() + psumgt[j].query()) % mod;
		}
		{
			long psum = 0;
			for (int j = 0; j < 26; j++) {
				psumlt[j].set(i, psum);
				psum += dp[i][j];
				if (psum >= mod) {
					psum -= mod;
				}
			}
		}
		{
			long psum = 0;
			for (int j = 26 - 1; j >= 0; j--) {
				psumgt[j].set(i, psum);
				psum += dp[i][j];
				if (psum >= mod) {
					psum -= mod;
				}
			}
		}
	}
	long ans = 0;
	for (auto& a : dp[0]) {
		ans += a;
	}
	ans %= mod;
	cout << ans << endl;
}

int main() {
	cin.tie(nullptr);
	ios_base::sync_with_stdio(false);
	cin.exceptions(ios::failbit);
	solve();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 316 KB Output is correct
14 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 316 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 448 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 360 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 4 ms 468 KB Output is correct
23 Correct 1 ms 516 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 380 ms 129968 KB Output is correct
6 Correct 375 ms 129960 KB Output is correct
7 Correct 357 ms 129988 KB Output is correct
8 Correct 366 ms 129992 KB Output is correct
9 Correct 382 ms 129928 KB Output is correct
10 Correct 16 ms 5436 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 466 ms 126420 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 316 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 448 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 360 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 4 ms 468 KB Output is correct
23 Correct 1 ms 516 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 18 ms 5460 KB Output is correct
27 Correct 18 ms 14404 KB Output is correct
28 Correct 22 ms 14492 KB Output is correct
29 Correct 23 ms 6312 KB Output is correct
30 Correct 15 ms 6232 KB Output is correct
31 Correct 191 ms 12612 KB Output is correct
32 Correct 15 ms 5460 KB Output is correct
33 Correct 17 ms 5480 KB Output is correct
34 Correct 17 ms 5588 KB Output is correct
35 Correct 159 ms 12156 KB Output is correct
36 Correct 28 ms 21804 KB Output is correct
37 Correct 26 ms 5524 KB Output is correct
38 Correct 18 ms 5460 KB Output is correct
39 Correct 12 ms 5860 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 316 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 448 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 360 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 4 ms 468 KB Output is correct
23 Correct 1 ms 516 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 320 KB Output is correct
29 Correct 1 ms 320 KB Output is correct
30 Correct 380 ms 129968 KB Output is correct
31 Correct 375 ms 129960 KB Output is correct
32 Correct 357 ms 129988 KB Output is correct
33 Correct 366 ms 129992 KB Output is correct
34 Correct 382 ms 129928 KB Output is correct
35 Correct 16 ms 5436 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 466 ms 126420 KB Output is correct
39 Correct 18 ms 5460 KB Output is correct
40 Correct 18 ms 14404 KB Output is correct
41 Correct 22 ms 14492 KB Output is correct
42 Correct 23 ms 6312 KB Output is correct
43 Correct 15 ms 6232 KB Output is correct
44 Correct 191 ms 12612 KB Output is correct
45 Correct 15 ms 5460 KB Output is correct
46 Correct 17 ms 5480 KB Output is correct
47 Correct 17 ms 5588 KB Output is correct
48 Correct 159 ms 12156 KB Output is correct
49 Correct 28 ms 21804 KB Output is correct
50 Correct 26 ms 5524 KB Output is correct
51 Correct 18 ms 5460 KB Output is correct
52 Correct 12 ms 5860 KB Output is correct
53 Correct 332 ms 142788 KB Output is correct
54 Correct 493 ms 328148 KB Output is correct
55 Correct 526 ms 147320 KB Output is correct
56 Correct 528 ms 146236 KB Output is correct
57 Correct 374 ms 129996 KB Output is correct
58 Correct 356 ms 129744 KB Output is correct
59 Correct 347 ms 129528 KB Output is correct
60 Correct 572 ms 125644 KB Output is correct
61 Correct 586 ms 503064 KB Output is correct
62 Correct 452 ms 124096 KB Output is correct
63 Correct 399 ms 122424 KB Output is correct
64 Correct 290 ms 120544 KB Output is correct