CSES - Datatähti 2018 alku - Results
Submission details
Task:Kyselyt
Sender:Shrike
Submission time:2017-10-03 09:25:19 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.03 s1details
#20.04 s2details
#30.04 s3details

Code

#include <iostream>
#include <sstream>
#include <cmath>
using namespace std;
typedef long long ll;
ll
decade(ll n)
{
ll sum;
sum = 0;
for (int i = 1; i < 1000000; i++) {
if (sum + i*9*pow(10.0, i-1) > n)
return i;
else
sum += i*9*pow(10.0, i-1);
}
return 0;
}
ll
sums(ll decade)
{
ll sum;
sum = 0;
for (int i = 1; i < decade; i++)
sum += i*9*pow(10.0, i-1);
return sum;
}
int
main(int argc, char **argv)
{
int q;
cin >> q;
ll qs[q];
for (int i = 0; i < q; i++) {
cin >> qs[i];
}
for (int i = 0; i < q; i++) {
ll inth, nth, dec, s, sm;
dec = decade(qs[i]);
s = sums(dec);
sm = qs[i] - s;
nth = (ll)ceil((double)sm/(double)dec);
inth = nth % dec;
/* stringstream ss; */
/* ss << nth; */
/* string str = ss.str(); */
cout << inth << 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
2
0
1
1
1
...
Truncated

Test 2

Group: 2

Verdict:

input
1000
615664
916441
627600
279508
...

correct output
1
2
3
2
2
...

user output
4
3
1
4
4
...
Truncated

Test 3

Group: 3

Verdict:

input
1000
672274832941907421
260504693279721732
646999966092970935
100853063389774434
...

correct output
7
2
2
0
9
...

user output
8
9
13
3
1
...
Truncated