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HIIT Open 2016

Start:2016-05-28 11:00:00
End:2016-05-28 16:00:00
 

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CSES - HIIT Open 2016 - Results
History
2016-05-28 15:25:28
2016-05-28 11:32:31
2016-05-28 11:21:32
Task:Interesting number
Sender:Barely Div 1
Submission time:2016-05-28 11:32:31
Language:C++
Status:READY
Result:ACCEPTED

Test results

testverdicttime (s)
#1ACCEPTED0.05 / 1.00details
#2ACCEPTED0.05 / 1.00details

Code


#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
using namespace std;


bool ok(int i) {
	if (i == 1) return false;
	string s = to_string(i);
	string s2 = s;
	reverse(s2.begin(), s2.end());
	if (s != s2) return false;
	if (i <= 2) return true;
	for (int j = 2; j < i; j++) {
		if ((i % j) == 0) {
			return false;
		}
	}
	return true;
}

int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	int t; cin >> t;
	vector<bool> oks(1001);
	for (int i = 1; i<=1000; i++) {
		if (ok(i)) oks[i] = true;
	}
	while (t--) {
		int n; cin >> n;
		while (n--) {
			int num; cin >> num;
			if (oks[num]) {
				cout << num << "\n";
			}
		}

	}


}






Test details

Test 1

Verdict: ACCEPTED

input
1000
9
300 988 956 931 116 3 386 202 ...
8
786 850 344 607 258 3 564 795
7
181 300 325 705 512 972 207
6
919 257 176 534 398 536
9
324 811 467 265 688 191 642 17...
5
7 691 423 512 506
5
705 191 300 735 966
10
134 709 407 211 518 815 444 11...
9
794 476 394 244 671 181 466 92...
6
...
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correct output
3
3
181
919
191
7
191
353
181
929
787
727
7
373
313
2
353
383
787
919
...
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user output
3
3
181
919
191
7
191
353
181
929
787
727
7
373
313
2
353
383
787
919
...
view   save

Test 2

Verdict: ACCEPTED

input
1
100000
72 247 605 249 10 422 594 490 ...
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correct output
191
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user output
191
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