oj.uz

Submission #765018

# Submission time Handle Problem Language Result Execution time Memory
765018 2023-06-24T07:35:17 Z ymm Misspelling (JOI22_misspelling) C++17
60 / 100
 1738 ms 14924 KB 
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

const int N = 20'010;
const int alpha = 26;
const int mod = 1e9+7;

ll dp[N][alpha];
ll ps[N][32];
int mxa[N], mxb[N];
int n, m;

int main()
{
	cin.tie(0) -> sync_with_stdio(false);
	cin >> n >> m;
	Loop (_,0,m) {
		int i, j;
		cin >> i >> j;
		//i=_+1,j=n;
		--i; --j;
		if (i < j)
			mxa[i] = max(mxa[i], j);
		else
			mxb[j] = max(mxb[j], i);
	}
	dp[n][0] = 1;
	Loop (x,0,alpha)
		ps[n][x+1] = 1;
	LoopR (i,0,n) {
		ll ans[32] = {};
		int a = mxa[i], b = mxb[i];
		Loop (j,i+1,n+1) {
			if (j > a && j > b) {
				Loop (x,0,alpha)
					ans[x] += ps[j][alpha];
				goto end;
			} else if (j > b) {
				Loop (x,0,alpha)
					ans[x] += ps[j][alpha] - ps[j][x+1];
			} else if (j > a) {
				Loop (x,0,alpha)
					ans[x] += ps[j][x];
			}
			a = max(a, mxa[j]);
			b = max(b, mxb[j]);
		}
	end:
		Loop (x,0,alpha)
			dp[i][x] = ans[x] % mod;

		Loop (x,0,alpha)
			ps[i][x+1] = ps[i][x] + dp[i][x];
	}
	ll ans = 0;
	Loop (x,0,alpha)
		ans += dp[0][x];
	ans %= mod;
	cout << ans << '\n';
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 328 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 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 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 328 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 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 1 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 1 ms 340 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 2 ms 468 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Runtime error 61 ms 4672 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 328 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 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 1 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 1 ms 340 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 2 ms 468 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 257 ms 9552 KB Output is correct
27 Correct 1736 ms 9500 KB Output is correct
28 Correct 1738 ms 9580 KB Output is correct
29 Correct 211 ms 9708 KB Output is correct
30 Correct 217 ms 9824 KB Output is correct
31 Correct 336 ms 14796 KB Output is correct
32 Correct 265 ms 9832 KB Output is correct
33 Correct 258 ms 9676 KB Output is correct
34 Correct 204 ms 9740 KB Output is correct
35 Correct 316 ms 14924 KB Output is correct
36 Correct 6 ms 9416 KB Output is correct
37 Correct 158 ms 9676 KB Output is correct
38 Correct 127 ms 9552 KB Output is correct
39 Correct 77 ms 9548 KB Output is correct

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 328 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 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 1 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 1 ms 340 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 2 ms 468 KB Output is correct
23 Correct 1 ms 328 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 340 KB Output is correct
27 Correct 1 ms 328 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Runtime error 61 ms 4672 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -