CSES - Datatähti 2018 alku - Results
Submission details
Task:Kyselyt
Sender:niklash
Submission time:2017-10-10 20:26:35 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.07 s1details
#20.06 s2details
#30.05 s3details

Code

#include <iostream>
#include <cmath>
typedef unsigned long long int huge;
// max value ~ 1.8e19
using namespace std;
huge startpos(int n)
{
if (n==1) return 10;
return startpos(n-1)+n*(9*pow(10,n-1));
}
int unelegant(huge n)
{
if (n<10) return (int)n;
int N=-1;
unsigned int stage=log10(n)+1;
unsigned int s=startpos(stage-1);
for (unsigned int i=0;i<stage;++i)
{
if ((n-s)%stage==i)
{
N=((n-s-i)/(stage*(unsigned int)pow(10,stage-1-i))+(unsigned int)(i==0))%10;
}
}
return N;
}
int main(int argc, char** argv)
{
int maara; cin>>maara;
huge values[maara];
for (int i=0;i<maara;++i) cin>>values[i];
for (int i=0;i<maara;++i) cout<<unelegant(values[i])<<endl;
return 0;
}

Test details

Test 1

Group: 1

Verdict:

input
1000
582
214
723
273
...

correct output
0
1
7
7
6
...

user output
0
1
7
7
6
...
Truncated

Test 2

Group: 2

Verdict:

input
1000
615664
916441
627600
279508
...

correct output
1
2
3
2
2
...

user output
1
2
3
0
1
...
Truncated

Test 3

Group: 3

Verdict:

input
1000
672274832941907421
260504693279721732
646999966092970935
100853063389774434
...

correct output
7
2
2
0
9
...

user output
3
2
3
5
2
...
Truncated