CSES - Datatähti Open 2019 - Results
Submission details
Task:Bit string
Sender:inverted-chan
Submission time:2019-01-18 16:53:24
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED21
#2ACCEPTED27
#3ACCEPTED52
Test results
testverdicttimegroup
#1ACCEPTED0.03 s1details
#2ACCEPTED0.02 s1details
#3ACCEPTED0.02 s1details
#4ACCEPTED0.01 s1details
#5ACCEPTED0.03 s1details
#6ACCEPTED0.02 s1details
#7ACCEPTED0.01 s1details
#8ACCEPTED0.02 s2details
#9ACCEPTED0.02 s2details
#10ACCEPTED0.03 s2details
#11ACCEPTED0.01 s2details
#12ACCEPTED0.02 s2details
#13ACCEPTED0.02 s2details
#14ACCEPTED0.01 s2details
#15ACCEPTED0.02 s3details
#16ACCEPTED0.02 s3details
#17ACCEPTED0.03 s3details
#18ACCEPTED0.03 s3details
#19ACCEPTED0.02 s3details
#20ACCEPTED0.02 s3details
#21ACCEPTED0.02 s3details

Code

#pragma GCC target("tune=native")

#include <bits/stdc++.h>

using namespace std;
using i32 = int32_t;
using i64 = int64_t;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    string a;
    cin >> a;

    i32 n = a.size();
    vector<i32> odd(n + 1), even(n + 1);

    i64 ans = 0;
    for (i32 i = 0; i < n; ++i) {
        if (a[i] == '0') {
            odd[i + 1] = odd[i];
            even[i + 1] = even[i] + 1;
        } else {
            odd[i + 1] = even[i] + 1;
            even[i + 1] = odd[i];
        }

        ans += even[i + 1];
    }

    cout << ans << endl;

#ifdef DEBUG
    main();
#endif
}

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: ACCEPTED

input
111111111111111111111111111111...

correct output
62500000000

user output
62500000000

Test 16

Group: 3

Verdict: ACCEPTED

input
101101100110111101111011111101...

correct output
62500057360

user output
62500057360

Test 17

Group: 3

Verdict: ACCEPTED

input
011100000010000011110101010001...

correct output
62500117306

user output
62500117306

Test 18

Group: 3

Verdict: ACCEPTED

input
001010011010000001100011001101...

correct output
62500144780

user output
62500144780

Test 19

Group: 3

Verdict: ACCEPTED

input
000000000000000000000000000000...

correct output
125000250000

user output
125000250000

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