CSES - Datatähti 2019 loppu - Results
Submission details
Task:Bittijono
Sender:Tuukka Yildirim
Submission time:2019-01-17 12:34:13
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED21
#2ACCEPTED27
#3ACCEPTED52
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1details
#2ACCEPTED0.02 s1details
#3ACCEPTED0.01 s1details
#4ACCEPTED0.02 s1details
#5ACCEPTED0.02 s1details
#6ACCEPTED0.02 s1details
#7ACCEPTED0.01 s1details
#8ACCEPTED0.02 s2details
#9ACCEPTED0.02 s2details
#10ACCEPTED0.03 s2details
#11ACCEPTED0.01 s2details
#12ACCEPTED0.02 s2details
#13ACCEPTED0.01 s2details
#14ACCEPTED0.03 s2details
#15ACCEPTED0.03 s3details
#16ACCEPTED0.02 s3details
#17ACCEPTED0.02 s3details
#18ACCEPTED0.04 s3details
#19ACCEPTED0.02 s3details
#20ACCEPTED0.01 s3details
#21ACCEPTED0.02 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:17:6: warning: unused variable 'z' [-Wunused-variable]
   ll z = 0, ones = 0;
      ^

Code

#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i=a; i<(b); i++)
#define IO ios_base::sync_with_stdio(0); cin.tie(0);

typedef long long ll;
using namespace std;

string s;

int main() {
  IO;
  string s; cin>>s;
  int n = s.size();
  
  ll ans = 0;
  ll even_zero = 0, odd_zero = 0;
  ll z = 0, ones = 0;
  
  FOR(i,1,n+1) {
    
    ll add = 0;
    if (s[i-1] == '0') {
      if (ones % 2 == 1) add = odd_zero + ones/2;
      else add = even_zero + ones/2;
      add++;
      
      if (ones % 2 == 0) even_zero++;
      else odd_zero++;
    } else {
      ones++;
      if (ones % 2 == 0) add = even_zero + ones/2;
      else add = odd_zero + ones/2;
    }
    
    //cout<<"Adding "<<add<<" at "<<i<<"\n";
    ans += add;
  }
  
  cout<<ans<<"\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: 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