CSES - Datatähti 2020 alku - Results
Submission details
Task:Merkkijonot
Sender:TrixterTheTux
Submission time:2019-10-10 19:48:42
Language:C++11
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED15
#2ACCEPTED31
#3ACCEPTED54
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.02 s2, 3details
#3ACCEPTED0.28 s3details
#4ACCEPTED1.00 s3details
#5ACCEPTED0.04 s3details
#6ACCEPTED0.01 s1, 2, 3details
#7ACCEPTED0.01 s1, 2, 3details
#8ACCEPTED0.01 s1, 2, 3details
#9ACCEPTED0.01 s1, 2, 3details
#10ACCEPTED0.02 s2, 3details
#11ACCEPTED0.02 s2, 3details
#12ACCEPTED0.02 s2, 3details
#13ACCEPTED0.02 s2, 3details
#14ACCEPTED0.02 s2, 3details
#15ACCEPTED0.28 s3details
#16ACCEPTED0.29 s3details
#17ACCEPTED0.28 s3details
#18ACCEPTED0.29 s3details
#19ACCEPTED0.29 s3details
#20ACCEPTED0.01 s1, 2, 3details
#21ACCEPTED0.01 s1, 2, 3details
#22ACCEPTED0.01 s1, 2, 3details
#23ACCEPTED0.01 s1, 2, 3details
#24ACCEPTED0.01 s1, 2, 3details

Code

#include <vector>
#include <map>
#include <unordered_map>
#include <iostream>
#include <string>

int main() {
	std::string cur;
	std::vector<std::unordered_map<std::vector<bool>, size_t>> map;

	size_t amount;
	std::cin >> amount;

	for(size_t i = 0; i < amount; i++) {
		std::cin >> cur;
		auto c_str = cur.c_str();

		size_t len = cur.length();
		if(len == 0) continue;

		std::vector<bool> bitfield((len * (len - 1)) / 2);

		size_t n = 0;
		for(size_t a = 0; a < len - 1; a++) {
			for(size_t b = a + 1; b < len; b++) {
				bitfield[n++] = c_str[a] == c_str[b];
			}
		}

		if(map.size() < len) {
			map.resize(len);
			std::unordered_map<std::vector<bool>, size_t> lookup;
			lookup[bitfield] = 0;

			map[len - 1] = lookup;
			continue;
		}

		auto &lenlookup = map[len - 1];
		auto lookup = lenlookup.find(bitfield);
		if(lookup == lenlookup.end()) {
			lenlookup[bitfield] = 0;
		} else {
			lenlookup[bitfield]++;
		}
	}

	size_t matches = 0;
	for(auto& mapit : map) {
		for(auto& addit : mapit) {
			matches += (addit.second * (addit.second + 1)) / 2;
		}
	}

	std::cout << matches << std::endl;
	return 0;
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
FFDISOVJLPIASANJRBHQXJVW
HBGVRZFWOTAAVUPYKMKXAOBEYUE
JKHXTPHUKTLTLNXMXMSYYFLF
HCSZMXTZCUFHIHSTEWKHCFZRTXU
...

correct output
20

user output
20

Test 2

Group: 2, 3

Verdict: ACCEPTED

input
5000
AJEDROEDXRGDUSDAPZBXXQBPJ
PDGCTAGCRTBCJICPFELRRMLFD
TISAOTGMDKUCITIEFQVCSBZJYUUO
FMASVJYFPMELSVLQWFZVLVMSPHYL
...

correct output
2178556

user output
2178556

Test 3

Group: 3

Verdict: ACCEPTED

input
100000
RESKYADLVRSDCDXJVECAJCAP
CZLIWDHKVNRJHZINHFBOQEPN
LSTRSDTLADUIWXFQJSQPVRSPBCTZ
QEMSZOQSSVBRNQTCLJQIGVQO
...

correct output
404880850

user output
404880850

Test 4

Group: 3

Verdict: ACCEPTED

input
100000
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
4999950000

user output
4999950000

Test 5

Group: 3

Verdict: ACCEPTED

input
100000
IPI
Q
SPGV
UNYE
...

correct output
1041990627

user output
1041990627

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
A
B
C
D
...

correct output
190

user output
190

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
A

correct output
0

user output
0

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
A
BB
CCC
DDDD
...

correct output
0

user output
0

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
A
A

correct output
1

user output
1

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
5000
SEKNHNRHSRFYIHSCDPGXPTGUSYBFKZ...

correct output
20861

user output
20861

Test 11

Group: 2, 3

Verdict: ACCEPTED

input
5000
UGPWHWOWAREEIROZTRJGUCKDKTZJEO...

correct output
22818

user output
22818

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
5000
FFQQCBCINBDWIKHFPO
SCJU
DNHYPGIQNZS
KNQCYRAXHHKORXMOVHL
...

correct output
22268

user output
22268

Test 13

Group: 2, 3

Verdict: ACCEPTED

input
5000
QVWMSYPWXWBBXWCVEOUAVQLDWNBXZB...

correct output
22589

user output
22589

Test 14

Group: 2, 3

Verdict: ACCEPTED

input
5000
JYORMNQAKXHNRBWGGSMWXWXMBKPBZU...

correct output
20482

user output
20482

Test 15

Group: 3

Verdict: ACCEPTED

input
100000
DCXXVIEYQAASZJYUUVYZUIJFGVBAYC...

correct output
8925377

user output
8925377

Test 16

Group: 3

Verdict: ACCEPTED

input
100000
IJZHBIYNWQBDWNGZWVXJKXXWFVLPQX...

correct output
8907840

user output
8907840

Test 17

Group: 3

Verdict: ACCEPTED

input
100000
GWUGLGQDAYGGJROIAKBMMICQMDUQQQ...

correct output
8771809

user output
8771809

Test 18

Group: 3

Verdict: ACCEPTED

input
100000
SWVSVXURRSLCSHCPAKWESIPCNDKYLD...

correct output
8704480

user output
8704480

Test 19

Group: 3

Verdict: ACCEPTED

input
100000
ZLSNSZBGIMCOLPDEAKVDAJCTMBNRLH...

correct output
8672362

user output
8672362

Test 20

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
AAB
D
CDBAA
D
...

correct output
15

user output
15

Test 21

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
A
CDD
AABBC
DBCB
...

correct output
15

user output
15

Test 22

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
ACADD
CDDCD
DACA
CCDCA
...

correct output
17

user output
17

Test 23

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
DCDA
BDBA
CACBD
BA
...

correct output
7

user output
7

Test 24

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
DDA
BBCDC
DDD
CCD
...

correct output
14

user output
14