CSES - Datatähti Open 2019 - Results
Submission details
Task:Bit string
Sender:daili
Submission time:2019-01-20 12:15:19
Language:C++
Status:READY
Result:48
Feedback
groupverdictscore
#1ACCEPTED21
#2ACCEPTED27
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1details
#2ACCEPTED0.01 s1details
#3ACCEPTED0.01 s1details
#4ACCEPTED0.01 s1details
#5ACCEPTED0.02 s1details
#6ACCEPTED0.01 s1details
#7ACCEPTED0.02 s1details
#8ACCEPTED0.04 s2details
#9ACCEPTED0.04 s2details
#10ACCEPTED0.04 s2details
#11ACCEPTED0.04 s2details
#12ACCEPTED0.04 s2details
#13ACCEPTED0.01 s2details
#14ACCEPTED0.02 s2details
#15--3details
#16--3details
#17--3details
#18--3details
#19--3details
#20ACCEPTED0.01 s3details
#21ACCEPTED0.02 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:49:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i <= n.size(); i++)
                  ~~^~~~~~~~~~~
input/code.cpp:51:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = i + 1; j <= n.size(); j++)
                       ~~^~~~~~~~~~~

Code

#include <iostream>
#include <vector>
#include <stack>
#include <unordered_set>
#include <numeric>
#include <iterator>
#include <unordered_map>
#include <array>
#include <map>
#include <cstring>
#include <iomanip>
#include <string>
#include <algorithm>
#include <cmath>
#include <ctgmath>
#include <set>
#include <queue>
#include <fstream>
#include <ostream>
#include <list>
#include <string>
using namespace std;

signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	string n;
	cin >> n;

	vector<int> pref;

	pref.push_back(0);
	for (auto i : n)
	{
		if (i == '1')
		{
			pref.push_back(pref.back() + 1);
		}
		else
		{
			pref.push_back(pref.back());
		}
	}

	int cnt = 0;
	for (int i = 0; i <= n.size(); i++)
	{
		for (int j = i + 1; j <= n.size(); j++)
		{
			if ((pref[j] - pref[i]) % 2 == 0)
			{
				cnt++;
			}
		}

	}
	cout << cnt << "\n";
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
111111111111111111111111111111...

correct output
2500

user output
2500

Test 2

Group: 1

Verdict: ACCEPTED

input
111101111111101111111011011110...

correct output
2502

user output
2502

Test 3

Group: 1

Verdict: ACCEPTED

input
000110011101101000000000101010...

correct output
2590

user output
2590

Test 4

Group: 1

Verdict: ACCEPTED

input
110101000010001000101100011000...

correct output
2502

user output
2502

Test 5

Group: 1

Verdict: ACCEPTED

input
000000000000000000000000000000...

correct output
5050

user output
5050

Test 6

Group: 1

Verdict: ACCEPTED

input
0

correct output
1

user output
1

Test 7

Group: 1

Verdict: ACCEPTED

input
1

correct output
0

user output
0

Test 8

Group: 2

Verdict: ACCEPTED

input
111111111111111111111111111111...

correct output
6250000

user output
6250000

Test 9

Group: 2

Verdict: ACCEPTED

input
111111111110101111111010111011...

correct output
6250342

user output
6250342

Test 10

Group: 2

Verdict: ACCEPTED

input
110110111000000001011100000011...

correct output
6252352

user output
6252352

Test 11

Group: 2

Verdict: ACCEPTED

input
000000001000101001001110100011...

correct output
6253422

user output
6253422

Test 12

Group: 2

Verdict: ACCEPTED

input
000000000000000000000000000000...

correct output
12502500

user output
12502500

Test 13

Group: 2

Verdict: ACCEPTED

input
0

correct output
1

user output
1

Test 14

Group: 2

Verdict: ACCEPTED

input
1

correct output
0

user output
0

Test 15

Group: 3

Verdict:

input
111111111111111111111111111111...

correct output
62500000000

user output
(empty)

Test 16

Group: 3

Verdict:

input
101101100110111101111011111101...

correct output
62500057360

user output
(empty)

Test 17

Group: 3

Verdict:

input
011100000010000011110101010001...

correct output
62500117306

user output
(empty)

Test 18

Group: 3

Verdict:

input
001010011010000001100011001101...

correct output
62500144780

user output
(empty)

Test 19

Group: 3

Verdict:

input
000000000000000000000000000000...

correct output
125000250000

user output
(empty)

Test 20

Group: 3

Verdict: ACCEPTED

input
0

correct output
1

user output
1

Test 21

Group: 3

Verdict: ACCEPTED

input
1

correct output
0

user output
0