CSES - Datatähti 2015 loppu - Results
Submission details
Task:Omenat
Sender:Pietu1998
Submission time:2015-01-29 17:08:48
Language:C++
Status:READY
Result:53
Feedback
groupverdictscore
#10
#20
#3ACCEPTED53
Test results
testverdicttimegroup
#1ACCEPTED0.07 s1details
#2ACCEPTED0.07 s1details
#3ACCEPTED0.07 s1details
#4ACCEPTED0.06 s1details
#50.06 s1details
#6ACCEPTED0.06 s1details
#7ACCEPTED0.06 s2details
#8--2details
#9ACCEPTED0.06 s2details
#10ACCEPTED0.07 s2details
#110.07 s2details
#12ACCEPTED0.06 s2details
#13ACCEPTED0.12 s3details
#14ACCEPTED0.12 s3details
#15ACCEPTED0.12 s3details
#16ACCEPTED0.12 s3details
#17ACCEPTED0.12 s3details
#18ACCEPTED0.11 s3details

Code

#include <iostream>
#include <list>

using namespace std;

bool haku(list<int> z, long s) {
	if (z.empty()) return false;
	int a = z.back();
	z.pop_back();
	if ((s + a) % 3 == 0) return true;
	if (haku(z, s + a)) return true;
	if (haku(z, s)) {
		z.push_back(a);
		return true;
	}
	z.push_back(a);
	return false;
}

int main() {
	cin.sync_with_stdio(false);
	int n, i;
	cin >> n;
	list<int> o = list<int>();
	int m = 0, s;
	for (i = 0; i < n; i++) {
		cin >> s;
		if (s % 3 == 0)
			m++;
		else
			o.push_back(s);
	}
	list<int>::iterator a ,b;
	list<int> z = list<int>();
	a = o.begin();
	b = o.end();
	long j = 0;
	int k = 0;
	while (a != b) {
		int q = *a;
		j += q;
		k++;
		if (j % 3 == 0) {
			m += k;
			j = k = 0;
			z.clear();
		} else z.push_back(q);
		a++;
	}
	while (!z.empty() && haku(z, 0)) {
		m++;
	}
	cout << m;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
20
34 98 42 72 75 91 76 30 98 7 1...

correct output
20

user output
20

Test 2

Group: 1

Verdict: ACCEPTED

input
20
20 97 85 24 47 57 69 92 21 72 ...

correct output
19

user output
19

Test 3

Group: 1

Verdict: ACCEPTED

input
20
36 35 3 15 84 14 24 33 39 27 7...

correct output
18

user output
18

Test 4

Group: 1

Verdict: ACCEPTED

input
20
75 87 27 66 14 48 34 1 52 47 7...

correct output
20

user output
20

Test 5

Group: 1

Verdict:

input
20
83 7 54 38 21 51 61 61 14 32 3...

correct output
19

user output
18

Test 6

Group: 1

Verdict: ACCEPTED

input
20
76 24 28 45 36 87 81 21 48 43 ...

correct output
18

user output
18

Test 7

Group: 2

Verdict: ACCEPTED

input
100
9 48 27 13 12 23 23 35 14 58 2...

correct output
100

user output
100

Test 8

Group: 2

Verdict:

input
100
22 87 66 23 77 17 41 66 31 40 ...

correct output
99

user output
(empty)

Test 9

Group: 2

Verdict: ACCEPTED

input
100
90 50 48 47 20 93 36 48 69 2 6...

correct output
98

user output
98

Test 10

Group: 2

Verdict: ACCEPTED

input
100
88 39 9 21 51 92 94 75 71 19 8...

correct output
100

user output
100

Test 11

Group: 2

Verdict:

input
100
76 37 49 50 59 68 6 100 48 18 ...

correct output
99

user output
98

Test 12

Group: 2

Verdict: ACCEPTED

input
100
78 45 100 25 90 85 33 90 45 54...

correct output
98

user output
98

Test 13

Group: 3

Verdict: ACCEPTED

input
100000
460655049 593289072 315159623 ...

correct output
100000

user output
100000

Test 14

Group: 3

Verdict: ACCEPTED

input
100000
935436362 204516709 337519402 ...

correct output
99999

user output
99999

Test 15

Group: 3

Verdict: ACCEPTED

input
100000
68654915 40061376 215300034 43...

correct output
99998

user output
99998

Test 16

Group: 3

Verdict: ACCEPTED

input
100000
435410962 22254303 500625758 6...

correct output
100000

user output
100000

Test 17

Group: 3

Verdict: ACCEPTED

input
100000
230562634 84329865 874955526 8...

correct output
99999

user output
99999

Test 18

Group: 3

Verdict: ACCEPTED

input
100000
29734968 168066517 710394372 3...

correct output
99998

user output
99998