CSES - Datatähti 2018 alku - Results
Submission details
Task:Kyselyt
Sender:ArktinenKarpalo
Submission time:2017-10-04 14:25:51 +0300
Language:C++
Status:READY
Result:37
Feedback
groupverdictscore
#1ACCEPTED12
#2ACCEPTED25
#30
Test results
testverdicttimegroup
#1ACCEPTED0.06 s1details
#2ACCEPTED0.04 s2details
#30.05 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:9:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<q; i++) {
                 ^

Code

#include <bits/stdc++.h>

using namespace std;

unsigned long long q, k, o, f, l, g, jj;

int main() {
	cin >> q;
	for(int i=0; i<q; i++) {
		cin >> k;
		if(k<10) {
			cout << k << "\n";
			continue;
		}
		o = 0;
		l = 0;
		for(int j=0; k>=o+j*(9*pow(10, j-1)); j++) {
			l++;
			o +=j*(9*pow(10, j-1));
		}
		f = k-o;
		jj = f%l;
		if(jj==0)
			jj = l;
		if(f==0)
			jj = l-1;
		f = (f+l-1)/l;
		g = f+9;
			if(l>2)
				g += pow(10, l-1)-10;
		cout << to_string(g)[jj-1] << "\n";
	}
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
1000
582
214
723
273
...

correct output
0
1
7
7
6
...

user output
0
1
7
7
6
...

Test 2

Group: 2

Verdict: ACCEPTED

input
1000
615664
916441
627600
279508
...

correct output
1
2
3
2
2
...

user output
1
2
3
2
2
...

Test 3

Group: 3

Verdict:

input
1000
672274832941907421
260504693279721732
646999966092970935
100853063389774434
...

correct output
7
2
2
0
9
...

user output
8
0
4
6
9
...