CSES - Datatähti 2025 alku - Results
Submission details
Task:Niitty
Sender:Laserr
Submission time:2024-10-30 11:34:18 +0200
Language:C++ (C++11)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
#40
#50
#60
Test results
testverdicttimegroup
#10.01 s1, 2, 3, 4, 5, 6details
#20.01 s1, 2, 3, 4, 5, 6details
#3ACCEPTED0.01 s1, 2, 3, 4, 5, 6details
#4ACCEPTED0.01 s1, 2, 3, 4, 5, 6details
#5ACCEPTED0.00 s1, 2, 3, 4, 5, 6details
#60.01 s2, 3, 4, 5, 6details
#70.01 s2, 3, 4, 5, 6details
#8ACCEPTED0.01 s2, 3, 4, 5, 6details
#90.01 s2, 3, 4, 5, 6details
#100.01 s3, 4, 5, 6details
#110.01 s3, 4, 5, 6details
#12ACCEPTED0.01 s3, 4, 5, 6details
#130.01 s3, 4, 5, 6details
#140.02 s4, 5, 6details
#150.02 s4, 5, 6details
#16ACCEPTED0.02 s4, 5, 6details
#170.02 s4, 5, 6details
#180.06 s5, 6details
#190.06 s5, 6details
#20ACCEPTED0.05 s5, 6details
#210.04 s5, 6details
#220.46 s6details
#230.36 s6details
#24ACCEPTED0.36 s6details
#250.18 s6details

Code

#include <iostream>
#include <vector>
#include <queue>

typedef long long ll;

using namespace std;

const ll l = 27; //kirjaimia 26

ll d[505][505];
ll p[l];
ll colsum[l][505];
ll rowsum[l][505][505];
pair<ll,ll> z[505][505];
ll dp[505][505];


int main() {
	ll n;
	cin >> n;
	for (ll i = 1; i <= n; i++) {
		for (ll j = 1; j <= n; j++) {
			char c;
			cin >> c;
			p[(ll)c - 64] = 1;
			d[i][j] = (ll)c - 64;
		}
	}
	for (ll i = 1; i <= n; i++) {
		for (ll j = 1; j <= n; j++) {
			colsum[d[i][j]][j]++;
		}
	}

	for (ll i = 1; i <= n; i++) {
		for (ll j = 1; j <= n; j++) {
			rowsum[d[i][j]][i][j]++;
			for (ll k = 1; k < l; k++) rowsum[k][i][j] += rowsum[k][i][j - 1];
		}
	}

	vector<pair<ll, ll>> xs;
	vector<ll> cs(l);
	queue<ll> q;
	for (ll i = 1; i <= n; i++) {
		bool b = true;
		for (ll j = 1; j < l; j++) {
			if (!p[j]) continue;
			cs[j] += colsum[j][i]; 
			if (cs[j] == 0) b = false;
		}
		q.push(i);

		if (b == false) continue;
		
		while (b == true) {
			for (ll j = 1; j < l; j++) {
				if (!p[j]) continue;
				if (cs[j] - colsum[j][q.front()] == 0) b = false;
			}
			if (b == true) {
				for (ll j = 1; j < l; j++) cs[j] -= colsum[j][q.front()];
				q.pop();
			}
		}
		xs.push_back({ q.front(), i });
		for (ll j = 1; j < l; j++) cs[j] -= colsum[j][q.front()];
		q.pop();
	}

	for (auto x : xs) {
		
		vector<ll> rs(l);
		queue<ll> q2;
		
		for (ll i = 1; i <= n; i++) {
			bool b = true;
			for (ll j = 1; j < l; j++) {
				if (!p[j]) continue;
				rs[j] += rowsum[j][i][x.second] - rowsum[j][i][x.first - 1];
				if (rs[j] == 0) b = false;
			}
			
			q2.push(i);

			if (b == false) continue;

			while (b == true) {
				for (ll j = 1; j < l; j++) {
					if (!p[j]) continue;
					if (rs[j] - (rowsum[j][q2.front()][x.second] - rowsum[j][q2.front()][x.first - 1]) == 0) b = false;
				}
				if (b == true) {
					for (ll j = 1; j < l; j++) {
						rs[j] -= (rowsum[j][q2.front()][x.second] - rowsum[j][q2.front()][x.first - 1]);
					}
					q2.pop();
				}
			}
			z[i][x.second] = { q2.front(), x.first };

			for (ll j = 1; j < l; j++) {
				rs[j] -= (rowsum[j][q2.front()][x.second] - rowsum[j][q2.front()][x.first - 1]);
			}
			q2.pop();
		}
	}

	ll ans = 0;

	for (ll k = 1; k <= n; k++) {
		for (ll i = 1; i <= n; i++) {
			for (ll j = n; j >= k; j--) {
				if (z[i][j].second > 0 && k >= j - z[i][j].second + 1) dp[i][j] = max(dp[i][j], z[i][j].first);
				dp[i][j] = max(dp[i][j], dp[i - 1][j]); 
				dp[i][j] = max(dp[i][j], dp[i][j-1]);
				ans += dp[i][j];
			}
		}
	}
	
	cout << ans << endl;
}

Test details

Test 1

Group: 1, 2, 3, 4, 5, 6

Verdict:

input
10
TNCTNPNTPC
NPPNTNTPTP
NTNTTCNTCT
NPCPNPPNTT
...

correct output
2035

user output
1231

Test 2

Group: 1, 2, 3, 4, 5, 6

Verdict:

input
10
NFWQLWNWYS
DZOQJVXFPJ
CNHXPXMCQD
QRTBVNLTQC
...

correct output
9

user output
8

Test 3

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
10
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
...

correct output
3025

user output
3025

Test 4

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
10
FFFFFFFFFF
FFFFFCFFFF
FFFFFFJFFF
FFFFFFFFFF
...

correct output
12

user output
12

Test 5

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
1
X

correct output
1

user output
1

Test 6

Group: 2, 3, 4, 5, 6

Verdict:

input
20
BBCBUBOUOBBCUUBBCOUO
BOUCOOCUBCOOOCOBOCUO
UCCUUUOBCOCBCBUBUCOO
BUOBUCUCUOOBCOOUBUOO
...

correct output
38724

user output
28797

Test 7

Group: 2, 3, 4, 5, 6

Verdict:

input
20
CBGLSHGZHYZDWBNDBJUG
SMUXOJQYPXZDTMJUIWOJ
XIDSTNBGHKRKOVUVMINB
MTQGCFRUHQKALXRNCQGS
...

correct output
8334

user output
1794

Test 8

Group: 2, 3, 4, 5, 6

Verdict: ACCEPTED

input
20
KKKKKKKKKKKKKKKKKKKK
KKKKKKKKKKKKKKKKKKKK
KKKKKKKKKKKKKKKKKKKK
KKKKKKKKKKKKKKKKKKKK
...

correct output
44100

user output
44100

Test 9

Group: 2, 3, 4, 5, 6

Verdict:

input
20
AAAAAAAAXAAAAAAAAAAA
AAAWAAAAAAAAAAAAAOAA
AAAAAAAAAAAAAAAAAPAA
AAAAAAAAKAAAAAAAAAAZ
...

correct output
18

user output
12

Test 10

Group: 3, 4, 5, 6

Verdict:

input
50
GRGREEEGREGXRXXEGXXREXGRRRGRRR...

correct output
1584665

user output
1401052

Test 11

Group: 3, 4, 5, 6

Verdict:

input
50
AITIISJUHCCRZNKSDCNQKYSQRINFWJ...

correct output
1077746

user output
325457

Test 12

Group: 3, 4, 5, 6

Verdict: ACCEPTED

input
50
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOO...

correct output
1625625

user output
1625625

Test 13

Group: 3, 4, 5, 6

Verdict:

input
50
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF...

correct output
1680

user output
1296

Test 14

Group: 4, 5, 6

Verdict:

input
100
NNCMDCDDCCNNNDNCMMNCDCDCCDCDNM...

correct output
25325366

user output
23836767

Test 15

Group: 4, 5, 6

Verdict:

input
100
LIMQQIHASECROEVILNVULGWZJPPKOG...

correct output
22342463

user output
10935567

Test 16

Group: 4, 5, 6

Verdict: ACCEPTED

input
100
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTT...

correct output
25502500

user output
25502500

Test 17

Group: 4, 5, 6

Verdict:

input
100
QXQQQQQQQQQQQQQQQQQQQQQQQQQQQQ...

correct output
25650

user output
11016

Test 18

Group: 5, 6

Verdict:

input
200
NAANANMMKNKKAKMKMAKNKMNKMMNNAA...

correct output
403292767

user output
391352557

Test 19

Group: 5, 6

Verdict:

input
200
OMYWATTLURKQPTKEFMGGYAOONXWVSC...

correct output
388111321

user output
213455630

Test 20

Group: 5, 6

Verdict: ACCEPTED

input
200
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC...

correct output
404010000

user output
404010000

Test 21

Group: 5, 6

Verdict:

input
200
LLLLLLLLLLLLLLLLLHLLLLLLLLLLLL...

correct output
14159445

user output
1172472

Test 22

Group: 6

Verdict:

input
500
VVHWVUHVHUWWWVUUUWVUUHUUWHWUVW...

correct output
15683003812

user output
15495779767

Test 23

Group: 6

Verdict:

input
500
OIMZGEQSBMBDSDXSWRFNKSGFEBBTJE...

correct output
15575906951

user output
12736051347

Test 24

Group: 6

Verdict: ACCEPTED

input
500
IIIIIIIIIIIIIIIIIIIIIIIIIIIIII...

correct output
15687562500

user output
15687562500

Test 25

Group: 6

Verdict:

input
500
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWW...

correct output
3058970930

user output
618222398