oj.uz

Submission #632024

# Submission time Handle Problem Language Result Execution time Memory
632024 2022-08-19T10:21:01 Z LittleCube Misspelling (JOI22_misspelling) C++14
100 / 100
 1894 ms 132248 KB 
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;

const ll mod = 1'000'000'007;
ll N, M, dp[500005][26], pre[500005][2], ans;

signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);
	cin >> N >> M;
	vector<pii> v[2];
	for(int i = 1; i <= M; i++)
	{
		int a, b;
		cin >> a >> b;
		if(a < b)
			v[0].emplace_back(pii(a, b));
		else 
			v[1].emplace_back(pii(b, a));
	}

	for(int t = 0; t <= 1; t++)
	{
		sort(v[t].begin(), v[t].end(), [](pii p1, pii p2){ return p1.S < p2.S; });
		
		multiset<int, greater<int>> st;
		
		st.insert(0);

		for(int i = N; i >= 1; i--)
		{
			while(!v[t].empty() && v[t].back().S >= i)
			{
				st.insert(v[t].back().F);
				v[t].pop_back();
			}
			pre[i][t] = *st.upper_bound(i);
		}
	}
	

	for(int i = 0; i < 26; i++)
		dp[1][i] = 1;

	for(int i = 2; i <= N; i++)
		for(int j = 0; j < 26; j++)
		{	
			for(int k = 0; k < 26; k++)
			{
				int mx = max(pre[i][0], pre[i][1]);
				if(pre[i][0] <= pre[i][1])
				{
					if(j > k)
						dp[i][j] = (dp[i][j] + dp[i - 1][k] - dp[mx][k] + mod) % mod;
					if(j < k)
						dp[i][j] = (dp[i][j] + dp[i - 1][k] - dp[pre[i][0]][k] + mod) % mod;
				}
				else
				{
					if(j > k)
						dp[i][j] = (dp[i][j] + dp[i - 1][k] - dp[pre[i][1]][k] + mod) % mod;
					if(j < k) 
						dp[i][j] = (dp[i][j] + dp[i - 1][k] - dp[mx][k] + mod) % mod;
				}
			}
			dp[i][j] = (dp[i][j] + dp[i - 1][j]) % mod;
		}
	
	for(int j = 0; j < 26; j++)
		ans = (ans + dp[N][j]) % mod;
	cout << ans << '\n';
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 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 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 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 724 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 352 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 324 KB Output is correct
5 Correct 1780 ms 132220 KB Output is correct
6 Correct 1823 ms 132116 KB Output is correct
7 Correct 1779 ms 132124 KB Output is correct
8 Correct 1783 ms 132196 KB Output is correct
9 Correct 1775 ms 132132 KB Output is correct
10 Correct 68 ms 5580 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1894 ms 132152 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 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 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 724 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 352 KB Output is correct
26 Correct 67 ms 5556 KB Output is correct
27 Correct 65 ms 5284 KB Output is correct
28 Correct 68 ms 5368 KB Output is correct
29 Correct 68 ms 5580 KB Output is correct
30 Correct 70 ms 5452 KB Output is correct
31 Correct 328 ms 36844 KB Output is correct
32 Correct 66 ms 5520 KB Output is correct
33 Correct 68 ms 5556 KB Output is correct
34 Correct 69 ms 5568 KB Output is correct
35 Correct 426 ms 25772 KB Output is correct
36 Correct 60 ms 4672 KB Output is correct
37 Correct 67 ms 5260 KB Output is correct
38 Correct 64 ms 5124 KB Output is correct
39 Correct 63 ms 4924 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 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 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 724 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 352 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 324 KB Output is correct
30 Correct 1780 ms 132220 KB Output is correct
31 Correct 1823 ms 132116 KB Output is correct
32 Correct 1779 ms 132124 KB Output is correct
33 Correct 1783 ms 132196 KB Output is correct
34 Correct 1775 ms 132132 KB Output is correct
35 Correct 68 ms 5580 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1894 ms 132152 KB Output is correct
39 Correct 67 ms 5556 KB Output is correct
40 Correct 65 ms 5284 KB Output is correct
41 Correct 68 ms 5368 KB Output is correct
42 Correct 68 ms 5580 KB Output is correct
43 Correct 70 ms 5452 KB Output is correct
44 Correct 328 ms 36844 KB Output is correct
45 Correct 66 ms 5520 KB Output is correct
46 Correct 68 ms 5556 KB Output is correct
47 Correct 69 ms 5568 KB Output is correct
48 Correct 426 ms 25772 KB Output is correct
49 Correct 60 ms 4672 KB Output is correct
50 Correct 67 ms 5260 KB Output is correct
51 Correct 64 ms 5124 KB Output is correct
52 Correct 63 ms 4924 KB Output is correct
53 Correct 1698 ms 126916 KB Output is correct
54 Correct 1678 ms 126920 KB Output is correct
55 Correct 1815 ms 132196 KB Output is correct
56 Correct 1799 ms 132248 KB Output is correct
57 Correct 1740 ms 132108 KB Output is correct
58 Correct 1758 ms 132180 KB Output is correct
59 Correct 1744 ms 132188 KB Output is correct
60 Correct 1867 ms 132132 KB Output is correct
61 Correct 1472 ms 109888 KB Output is correct
62 Correct 1730 ms 126552 KB Output is correct
63 Correct 1624 ms 121084 KB Output is correct
64 Correct 1547 ms 115388 KB Output is correct