CSES - DatatÃ¤hti 2022 alku - Results
 Task: Ositus Sender: ToukoP Submission time: 2021-10-16 13:39:23 Language: C++11 Status: READY Result: 40
Feedback
groupverdictscore
#1ACCEPTED40
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#50.01 s2, 3details
#60.01 s3details
#70.03 s3details

### Code

```#include <iostream>
#include <math.h>
#include <vector>
#include <algorithm>
using namespace std;

const int charCount = 26;
int toInt(char c) {
return (int) c - 97;
}

vector<bool> toBinary(long n) {
vector<bool> r;
while(n != 0) {
r.push_back(n % 2 != 0);
n /= 2;
}
return r;
}

unsigned long all(unsigned long len) {
if (len < 0) len = 0;
unsigned long res = 1;
for (unsigned long i = 0; i < len; i++) {
res *= 2;
}
return res;
}

unsigned long isValid(string value, unsigned long parts) {
vector<bool> binary = toBinary(parts);

bool chars [charCount];
fill_n(chars, charCount, false);

chars[toInt(value[0])] = true;
for (unsigned long i = 1; i < value.length(); i++) {

if (i - 1 < binary.size() && binary[i - 1]) {
fill_n(chars, charCount, false);
}

int c = toInt(value[i]);

if (chars[c]) {
return false;
}

chars[c] = true;
}

return true;
}

unsigned long mod = pow(10, 9) + 7;

unsigned long solve(string value) {
unsigned long res = 0, n = pow((long) 2, value.length() -1);
//cout << "Length " << n << endl;

for (unsigned long i = 0; i < n; i++) {
bool valid = isValid(value, i);
if (valid) {
res++;
if (res == mod) res = 0;
}
//cout << value << (valid ? " Valid":"") << endl;
vector<bool> bin = toBinary(i);
for (unsigned long j = 0; j + 1 < value.length(); j++) {
if (j >= bin.size()) {
//cout << ",";
continue;
}
//cout << (bin.at(j) ? "|" : ".");
}
//cout << endl;
}
return res;
}

int main() {
string str;
cin >> str;
cout << solve(str);
}```

### Test details

#### Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
a

correct output
1

user output
1

#### Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
abcdefghij

correct output
512

user output
512

#### Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
abcabaacbc

correct output
120

user output
120

#### Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
aaxxxxxxaa

correct output
4

user output
4

#### Test 5

Group: 2, 3

Verdict:

input
mfyzvoxmppoxcvktmcjkryyocfweub...

correct output
643221148

user output
0

#### Test 6

Group: 3

Verdict:

input
weinscqmmpgbrlboocvtbptgbahmwv...

correct output
831644159

user output
0

#### Test 7

Group: 3

Verdict:

input
sxaoxcyrjoeieyinaqxwukgzdnhhsw...

correct output
816016015

user output
0