CSES - Datatähti 2025 alku

CSES - Datatähti 2025 alku - Results

Submission details
Task:	Niitty
Sender:	Vludo
Submission time:	2024-11-01 16:31:18 +0200
Language:	C++ (C++20)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0
#3	WRONG ANSWER	0
#4	WRONG ANSWER	0
#5	WRONG ANSWER	0
#6	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	WRONG ANSWER	0.01 s	1, 2, 3, 4, 5, 6	details
#2	WRONG ANSWER	0.01 s	1, 2, 3, 4, 5, 6	details
#3	WRONG ANSWER	0.01 s	1, 2, 3, 4, 5, 6	details
#4	WRONG ANSWER	0.01 s	1, 2, 3, 4, 5, 6	details
#5	ACCEPTED	0.00 s	1, 2, 3, 4, 5, 6	details
#6	WRONG ANSWER	0.01 s	2, 3, 4, 5, 6	details
#7	WRONG ANSWER	0.01 s	2, 3, 4, 5, 6	details
#8	WRONG ANSWER	0.01 s	2, 3, 4, 5, 6	details
#9	WRONG ANSWER	0.01 s	2, 3, 4, 5, 6	details
#10	WRONG ANSWER	0.01 s	3, 4, 5, 6	details
#11	WRONG ANSWER	0.01 s	3, 4, 5, 6	details
#12	WRONG ANSWER	0.01 s	3, 4, 5, 6	details
#13	WRONG ANSWER	0.01 s	3, 4, 5, 6	details
#14	WRONG ANSWER	0.02 s	4, 5, 6	details
#15	WRONG ANSWER	0.02 s	4, 5, 6	details
#16	WRONG ANSWER	0.02 s	4, 5, 6	details
#17	WRONG ANSWER	0.02 s	4, 5, 6	details
#18	WRONG ANSWER	0.04 s	5, 6	details
#19	WRONG ANSWER	0.05 s	5, 6	details
#20	WRONG ANSWER	0.04 s	5, 6	details
#21	WRONG ANSWER	0.04 s	5, 6	details
#22	WRONG ANSWER	0.12 s	6	details
#23	WRONG ANSWER	0.24 s	6	details
#24	WRONG ANSWER	0.11 s	6	details
#25	WRONG ANSWER	0.28 s	6	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:63:21: warning: unused variable 'x2' [-Wunused-variable]
   63 |                 int x2, left=x1, right=n-1, mid;
      |                     ^~
input/code.cpp:51:17: warning: unused variable 'prev2' [-Wunused-variable]
   51 |             int prev2 = counter;
      |                 ^~~~~

Code

#include<bits/stdc++.h>
using namespace std;
#define forn(i,n) for(int i=0;i<n;++i)
#define forN(i,k,n) for(int i=k;i<n;++i)
#define pb push_back
#define F first
#define S second
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
#define inf ((int)(1.01e9))
#define mod ((int)(1e9+7))
#define N ((int)(2002))

int n, L, z[26][N][N], counter=0;
set<char> letters;
char a[N][N];
int K[26];

bool check(pii l, pii r) {
    int c;
    forn(h,26) if (K[h]) {
        c = z[h][r.F+1][r.S+1] - z[h][l.F][r.S+1] 
            - z[h][r.F+1][l.S] + z[h][l.F][l.S];
        if (!c) return false;
    }
    return true;
}

int main() {
    cin.tie(0) -> sync_with_stdio(0);
    cout.tie(0);

    cin >> n;

    L = 0;
    forn(i, n) forn(j, n) {
        cin >> a[i][j];
        if (!K[a[i][j]-'A']++) L++;
    }
    // if (n==1) return 0 * printf("1\n");

    forn(k, 26) forn(i,n) forn(j,n) {
        z[k][i+1][j+1] = z[k][i][j+1] + z[k][i+1][j] - z[k][i][j];
        z[k][i + 1][j + 1] += (a[i][j] == 'A'+k);
    }

    forn(y1, n) {
        int prev1 = counter; 
        forn(x1, n) {
            int prev2 = counter;
            pii l = {y1, x1};
            for (int y2 = n-1; y2>=y1; --y2) {
                if (!check(l, {y2, n-1}))
                    break;

                if (check(l, {y2, x1})) {
                    counter += n - x1;
                    continue;
                }

                
                int x2, left=x1, right=n-1, mid;
                while (left < right) {
                    mid = left+(right-left)/2;
                    if (check(l,{y2,mid})) right = mid;
                    else left = mid+1;
                }

                if (left<n && check(l,{y2,left}))
                    counter += n - left;
                else break;
            }
            // if (prev2 < counter) break;
        }
        if (prev1 < counter) break;
    }

    cout << counter << endl;
}

Test details

Test 1

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

Verdict: WRONG ANSWER

input
`10 TNCTNPNTPC NPPNTNTPTP NTNTTCNTCT NPCPNPPNTT ...` view save

correct output
`2035` view save

user output
`436` view save

Test 2

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

Verdict: WRONG ANSWER

input
`10 NFWQLWNWYS DZOQJVXFPJ CNHXPXMCQD QRTBVNLTQC ...` view save

correct output
`9` view save

user output
`4` view save

Test 3

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

Verdict: WRONG ANSWER

input
`10 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX ...` view save

correct output
`3025` view save

user output
`550` view save

Test 4

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

Verdict: WRONG ANSWER

input
`10 FFFFFFFFFF FFFFFCFFFF FFFFFFJFFF FFFFFFFFFF ...` view save

correct output
`12` view save

user output
`6` view save

Test 5

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

Verdict: ACCEPTED

input
`1 X` view save

correct output
`1` view save

user output
`1` view save

Test 6

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`20 BBCBUBOUOBBCUUBBCOUO BOUCOOCUBCOOOCOBOCUO UCCUUUOBCOCBCBUBUCOO BUOBUCUCUOOBCOOUBUOO ...` view save

correct output
`38724` view save

user output
`3935` view save

Test 7

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`20 CBGLSHGZHYZDWBNDBJUG SMUXOJQYPXZDTMJUIWOJ XIDSTNBGHKRKOVUVMINB MTQGCFRUHQKALXRNCQGS ...` view save

correct output
`8334` view save

user output
`1317` view save

Test 8

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`20 KKKKKKKKKKKKKKKKKKKK KKKKKKKKKKKKKKKKKKKK KKKKKKKKKKKKKKKKKKKK KKKKKKKKKKKKKKKKKKKK ...` view save

correct output
`44100` view save

user output
`4200` view save

Test 9

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`20 AAAAAAAAXAAAAAAAAAAA AAAWAAAAAAAAAAAAAOAA AAAAAAAAAAAAAAAAAPAA AAAAAAAAKAAAAAAAAAAZ ...` view save

correct output
`18` view save

user output
`12` view save

Test 10

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`50 GRGREEEGREGXRXXEGXXREXGRRRGRRR...` view save

correct output
`1584665` view save

user output
`62920` view save

Test 11

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`50 AITIISJUHCCRZNKSDCNQKYSQRINFWJ...` view save

correct output
`1077746` view save

user output
`49312` view save

Test 12

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`50 OOOOOOOOOOOOOOOOOOOOOOOOOOOOOO...` view save

correct output
`1625625` view save

user output
`63750` view save

Test 13

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

input
`50 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF...` view save

correct output
`1680` view save

user output
`432` view save

Test 14

Group: 4, 5, 6

Verdict: WRONG ANSWER

input
`100 NNCMDCDDCCNNNDNCMMNCDCDCCDCDNM...` view save

correct output
`25325366` view save

user output
`503387` view save

Test 15

Group: 4, 5, 6

Verdict: WRONG ANSWER

input
`100 LIMQQIHASECROEVILNVULGWZJPPKOG...` view save

correct output
`22342463` view save

user output
`467458` view save

Test 16

Group: 4, 5, 6

Verdict: WRONG ANSWER

input
`100 TTTTTTTTTTTTTTTTTTTTTTTTTTTTTT...` view save

correct output
`25502500` view save

user output
`505000` view save

Test 17

Group: 4, 5, 6

Verdict: WRONG ANSWER

input
`100 QXQQQQQQQQQQQQQQQQQQQQQQQQQQQQ...` view save

correct output
`25650` view save

user output
`5712` view save

Test 18

Group: 5, 6

Verdict: WRONG ANSWER

input
`200 NAANANMMKNKKAKMKMAKNKMNKMMNNAA...` view save

correct output
`403292767` view save

user output
`4016627` view save

Test 19

Group: 5, 6

Verdict: WRONG ANSWER

input
`200 OMYWATTLURKQPTKEFMGGYAOONXWVSC...` view save

correct output
`388111321` view save

user output
`3936331` view save

Test 20

Group: 5, 6

Verdict: WRONG ANSWER

input
`200 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC...` view save

correct output
`404010000` view save

user output
`4020000` view save

Test 21

Group: 5, 6

Verdict: WRONG ANSWER

input
`200 LLLLLLLLLLLLLLLLLHLLLLLLLLLLLL...` view save

correct output
`14159445` view save

user output
`270471` view save

Test 22

Group: 6

Verdict: WRONG ANSWER

input
`500 VVHWVUHVHUWWWVUUUWVUUHUUWHWUVW...` view save

correct output
`15683003812` view save

user output
`62615850` view save

Test 23

Group: 6

Verdict: WRONG ANSWER

input
`500 OIMZGEQSBMBDSDXSWRFNKSGFEBBTJE...` view save

correct output
`15575906951` view save

user output
`62392104` view save

Test 24

Group: 6

Verdict: WRONG ANSWER

input
`500 IIIIIIIIIIIIIIIIIIIIIIIIIIIIII...` view save

correct output
`15687562500` view save

user output
`62625000` view save

Test 25

Group: 6

Verdict: WRONG ANSWER

input
`500 WWWWWWWWWWWWWWWWWWWWWWWWWWWWWW...` view save

correct output
`3058970930` view save

user output
`19190607` view save

Datatähti 2025 alku

Niitty

Compiler report

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Test 23

Test 24

Test 25

Tasks

Submissions (Vludo)