CSES - Datatähti Open 2019 - Results
Submission details
Task:Bit string
Sender:MoNsTeR_CuBe
Submission time:2019-01-19 12:14:27
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED21
#2ACCEPTED27
#3ACCEPTED52
Test results
testverdicttimegroup
#1ACCEPTED0.03 s1details
#2ACCEPTED0.02 s1details
#3ACCEPTED0.04 s1details
#4ACCEPTED0.02 s1details
#5ACCEPTED0.02 s1details
#6ACCEPTED0.02 s1details
#7ACCEPTED0.02 s1details
#8ACCEPTED0.03 s2details
#9ACCEPTED0.02 s2details
#10ACCEPTED0.02 s2details
#11ACCEPTED0.02 s2details
#12ACCEPTED0.03 s2details
#13ACCEPTED0.03 s2details
#14ACCEPTED0.03 s2details
#15ACCEPTED0.03 s3details
#16ACCEPTED0.05 s3details
#17ACCEPTED0.05 s3details
#18ACCEPTED0.04 s3details
#19ACCEPTED0.03 s3details
#20ACCEPTED0.02 s3details
#21ACCEPTED0.02 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:40:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < s.size(); i++){
                    ~~^~~~~~~~~~

Code

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define INF 9223372036854775807

string s;

int memo[2][500009];

int dp(int parity, int index){
    if(index < 0) return 0;
    if(memo[parity][index] != -1) return memo[parity][index];
    if(parity == 0){
        if(s[index] == '1'){
            return memo[parity][index] = dp(1,index-1);
        }else{
            return memo[parity][index] = dp(0,index-1)+1;
        }
    }else{
        if(s[index] == '0'){
            return memo[parity][index] = dp(1,index-1);
        }else{
            return memo[parity][index] = dp(0,index-1)+1;
        }
    }

}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> s;
    for(int i = 0; i < 2; i++){
        for(int j = 0; j < 500009; j++){
            memo[i][j] = -1;
        }
    }
    int tot = 0;
    for(int i = 0; i < s.size(); i++){
        //cout << i << ' ' << dp(0,i) << endl;
        tot+=dp(0,i);
    }
    cout << tot << endl;
}

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