CSES - Datatähti 2022 alku - Results
Submission details
Task:Ositus
Sender:T
Submission time:2021-10-17 20:28:28
Language:C++11
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED40
#2ACCEPTED25
#3ACCEPTED35
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#5ACCEPTED0.01 s2, 3details
#6ACCEPTED0.01 s3details
#7ACCEPTED0.06 s3details

Compiler report

input/code.cpp: In function 'void partitioning(std::__cxx11::string)':
input/code.cpp:18:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 1; i < s.length(); i++) {
                     ~~^~~~~~~~~~~~

Code

/**
 * Datathti 2022 alku
 * Ositus (Partitioning)
 * @author TRS
 */
#include <bits/stdc++.h>
using namespace std;
//Constants
#define infinity 0x3f3f3f3f
#define linfinity 0x3f3f3f3f3f3f3f3f
#define MOD 1000000007
const int MX = 1000001;
long long partitions[MX];
int appeared;
void partitioning(string s) {
    s = "." + s;
    partitions[0] = 1;
    for (int i = 1; i < s.length(); i++) {
        appeared = 0;
        for (int j = i; j > 0; j--) {
            if (appeared & (1 << (s.at(j) - 'a'))) {
                break;
            }
            appeared |= (1 << (s.at(j) - 'a'));
            partitions[i] += partitions[j - 1];
            partitions[i] %= MOD;
        }
    }
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    string s;
    getline(cin, s);
    if (s.length() == 1) {
        cout<<1<<"\n";
        return 0;
    }
    partitioning(s);
    cout<<partitions[s.length()]<<"\n";
    return 0;
}

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: ACCEPTED

input
mfyzvoxmppoxcvktmcjkryyocfweub...

correct output
643221148

user output
643221148

Test 6

Group: 3

Verdict: ACCEPTED

input
weinscqmmpgbrlboocvtbptgbahmwv...

correct output
831644159

user output
831644159

Test 7

Group: 3

Verdict: ACCEPTED

input
sxaoxcyrjoeieyinaqxwukgzdnhhsw...

correct output
816016015

user output
816016015