CSES - Datatähti 2020 alku - Results
Submission details
Task:Merkkijonot
Sender:kaurip
Submission time:2019-10-01 22:05:58 +0300
Language:C++ (C++17)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.01 s1, 2, 3details
#20.01 s2, 3details
#30.01 s3details
#40.01 s3details
#50.01 s3details
#60.01 s1, 2, 3details
#70.01 s1, 2, 3details
#80.01 s1, 2, 3details
#90.01 s1, 2, 3details
#100.01 s2, 3details
#110.01 s2, 3details
#120.01 s2, 3details
#130.01 s2, 3details
#140.01 s2, 3details
#150.01 s3details
#160.01 s3details
#170.01 s3details
#180.01 s3details
#190.01 s3details
#200.01 s1, 2, 3details
#210.01 s1, 2, 3details
#220.01 s1, 2, 3details
#230.01 s1, 2, 3details
#240.01 s1, 2, 3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:34:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(long j = 0; j < strings[i].length(); j++) {
                   ~~^~~~~~~~~~~~~~~~~~~~~

Code

#include <iostream>
#include <unordered_map>
#include <string>

using namespace std;

long long nCr(int n, int r) {
    if(r > n - r) r = n - r; // because C(n, r) == C(n, n - r)
    long long ans = 1;
    int i;

    for(i = 1; i <= r; i++) {
        ans *= n - r + i;
        ans /= i;
    }

    return ans;
}

int main() {
	long n;
	//cin >> n;
	n = 1000;
	string strings[n];
	for(long i = 0; i < n; i++) {
		//cin >> strings[i];
		strings[i]="abcdefg";
	}
	
	unordered_map<string,long> total;

	for(long i = 0; i < n; i++) {
		unordered_map<char, long> used;
		for(long j = 0; j < strings[i].length(); j++) {
			if(used.count(strings[i][j])) {
				strings[i][j] = used[strings[i][j]];
			} else {
				used[strings[i][j]] = (char)j+48;
				strings[i][j] = (char)j+48;
			}
		}
		if(total.count(strings[i])) {
			total[strings[i]]++;
		} else {
			total[strings[i]] = 1;
		}
	}

	long long pairs = 0;

	for(pair<string,long> entry : total) {
		pairs += nCr(entry.second,2);
		//cout << entry.first << ": " << entry.second << endl;
	}

	cout << pairs;

	return 0;
}

Test details

Test 1

Group: 1, 2, 3

Verdict:

input
20
FFDISOVJLPIASANJRBHQXJVW
HBGVRZFWOTAAVUPYKMKXAOBEYUE
JKHXTPHUKTLTLNXMXMSYYFLF
HCSZMXTZCUFHIHSTEWKHCFZRTXU
...

correct output
20

user output
499500

Test 2

Group: 2, 3

Verdict:

input
5000
AJEDROEDXRGDUSDAPZBXXQBPJ
PDGCTAGCRTBCJICPFELRRMLFD
TISAOTGMDKUCITIEFQVCSBZJYUUO
FMASVJYFPMELSVLQWFZVLVMSPHYL
...

correct output
2178556

user output
499500

Test 3

Group: 3

Verdict:

input
100000
RESKYADLVRSDCDXJVECAJCAP
CZLIWDHKVNRJHZINHFBOQEPN
LSTRSDTLADUIWXFQJSQPVRSPBCTZ
QEMSZOQSSVBRNQTCLJQIGVQO
...

correct output
404880850

user output
499500

Test 4

Group: 3

Verdict:

input
100000
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
4999950000

user output
499500

Test 5

Group: 3

Verdict:

input
100000
IPI
Q
SPGV
UNYE
...

correct output
1041990627

user output
499500

Test 6

Group: 1, 2, 3

Verdict:

input
20
A
B
C
D
...

correct output
190

user output
499500

Test 7

Group: 1, 2, 3

Verdict:

input
1
A

correct output
0

user output
499500

Test 8

Group: 1, 2, 3

Verdict:

input
20
A
BB
CCC
DDDD
...

correct output
0

user output
499500

Test 9

Group: 1, 2, 3

Verdict:

input
2
A
A

correct output
1

user output
499500

Test 10

Group: 2, 3

Verdict:

input
5000
SEKNHNRHSRFYIHSCDPGXPTGUSYBFKZ...

correct output
20861

user output
499500

Test 11

Group: 2, 3

Verdict:

input
5000
UGPWHWOWAREEIROZTRJGUCKDKTZJEO...

correct output
22818

user output
499500

Test 12

Group: 2, 3

Verdict:

input
5000
FFQQCBCINBDWIKHFPO
SCJU
DNHYPGIQNZS
KNQCYRAXHHKORXMOVHL
...

correct output
22268

user output
499500

Test 13

Group: 2, 3

Verdict:

input
5000
QVWMSYPWXWBBXWCVEOUAVQLDWNBXZB...

correct output
22589

user output
499500

Test 14

Group: 2, 3

Verdict:

input
5000
JYORMNQAKXHNRBWGGSMWXWXMBKPBZU...

correct output
20482

user output
499500

Test 15

Group: 3

Verdict:

input
100000
DCXXVIEYQAASZJYUUVYZUIJFGVBAYC...

correct output
8925377

user output
499500

Test 16

Group: 3

Verdict:

input
100000
IJZHBIYNWQBDWNGZWVXJKXXWFVLPQX...

correct output
8907840

user output
499500

Test 17

Group: 3

Verdict:

input
100000
GWUGLGQDAYGGJROIAKBMMICQMDUQQQ...

correct output
8771809

user output
499500

Test 18

Group: 3

Verdict:

input
100000
SWVSVXURRSLCSHCPAKWESIPCNDKYLD...

correct output
8704480

user output
499500

Test 19

Group: 3

Verdict:

input
100000
ZLSNSZBGIMCOLPDEAKVDAJCTMBNRLH...

correct output
8672362

user output
499500

Test 20

Group: 1, 2, 3

Verdict:

input
20
AAB
D
CDBAA
D
...

correct output
15

user output
499500

Test 21

Group: 1, 2, 3

Verdict:

input
20
A
CDD
AABBC
DBCB
...

correct output
15

user output
499500

Test 22

Group: 1, 2, 3

Verdict:

input
20
ACADD
CDDCD
DACA
CCDCA
...

correct output
17

user output
499500

Test 23

Group: 1, 2, 3

Verdict:

input
20
DCDA
BDBA
CACBD
BA
...

correct output
7

user output
499500

Test 24

Group: 1, 2, 3

Verdict:

input
20
DDA
BBCDC
DDD
CCD
...

correct output
14

user output
499500