CSES - Datatähti 2022 alku - Results
Submission details
Task:Ositus (Partitioning)
Sender:tonero
Submission time:2021-10-16 19:44:43
Language:C++17
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
#70.16 s3details

Code

#include <bits/stdc++.h>

using namespace std;

#define ull unsigned long long
#define ll long long
ull ans = 0;

vector<ull> cache;
string line;

ull calc(ull startOffset){
    ull fnd[25] = {0};
    bool brk = false;
    ull tmpAns = 0;
    for (ull i = startOffset; i < line.length(); ++i) {
        fnd[line[i]-97]++;
        if(fnd[line[i]-97] > 1) {
            brk = true;
            break;
        }
        if(cache[i] == -1ull){
            ull tmpAns2 = calc(i+1);
            tmpAns += tmpAns2;
            cache[i] = tmpAns2;
        }else{
            tmpAns += cache[i];
        }
    }
    if(!brk){
        ++tmpAns;
    }
    return tmpAns;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);


    std::getline(std::cin, line);

    cache = vector<ull>(line.length() + 1, -1);

    ans += calc(0);

    cout << (ans/2) % (10000000000 + 7);
    cout << '\n';
    flush(std::cout);
}

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
(empty)

Error:
*** stack smashing detected ***: <unknown> terminated

Test 6

Group: 3

Verdict:

input
weinscqmmpgbrlboocvtbptgbahmwv...

correct output
831644159

user output
(empty)

Error:
*** stack smashing detected ***: <unknown> terminated

Test 7

Group: 3

Verdict:

input
sxaoxcyrjoeieyinaqxwukgzdnhhsw...

correct output
816016015

user output
(empty)

Error:
*** stack smashing detected ***: <unknown> terminated