CSES - Datatähti 2022 alku - Results
Submission details
Task:Ositus
Sender:Juho
Submission time:2021-10-06 20:24:45
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
#7ACCEPTED0.04 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<=mj.size();i++){
                 ~^~~~~~~~~~~

Code

#include <bits/stdc++.h>
using namespace std;

string mj;
int raja;
int muisti[26];
long s[1000002];

int main() {
    cin>>mj;
    s[0]=0;
    s[1]=1;
    
    for(int i=1;i<=mj.size();i++){
        raja = max(muisti[mj[i-1]-'a'], raja);
        muisti[mj[i-1]-'a']=i;
        s[i+1] = 2*s[i]-s[raja]+1000000007L;
        s[i+1] %= 1000000007L;
    }
    cout<<(s[mj.size()+1]-s[mj.size()]+1000000007L)%1000000007L;
}

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