CSES - Datatähti 2019 loppu - Results
Submission details
Task:Summa
Sender:Henri Ahola
Submission time:2019-01-17 12:10:33
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED100
Test results
testverdicttime
#1ACCEPTED0.02 sdetails
#2ACCEPTED0.02 sdetails
#3ACCEPTED0.02 sdetails
#4ACCEPTED0.02 sdetails
#5ACCEPTED0.02 sdetails
#6ACCEPTED0.01 sdetails
#7ACCEPTED0.01 sdetails
#8ACCEPTED0.03 sdetails
#9ACCEPTED0.01 sdetails
#10ACCEPTED0.03 sdetails
#11ACCEPTED0.03 sdetails
#12ACCEPTED0.02 sdetails
#13ACCEPTED0.02 sdetails
#14ACCEPTED0.02 sdetails
#15ACCEPTED0.02 sdetails
#16ACCEPTED0.01 sdetails
#17ACCEPTED0.01 sdetails
#18ACCEPTED0.03 sdetails
#19ACCEPTED0.02 sdetails
#20ACCEPTED0.01 sdetails
#21ACCEPTED0.01 sdetails
#22ACCEPTED0.02 sdetails
#23ACCEPTED0.03 sdetails
#24ACCEPTED0.05 sdetails
#25ACCEPTED0.06 sdetails
#26ACCEPTED0.07 sdetails
#27ACCEPTED0.09 sdetails
#28ACCEPTED0.12 sdetails

Code

#include <iostream>
#include <unordered_set>
#include <vector>

using namespace std;

long n, c, s, r;

void search(long x) {
    if (s == 3) {
        if (c == n) {
            ++r;
        }
    } else {
        if (c + x <= n) {
            ++s;
            c += x;
            search(x + 1);
            --s;
            c -= x;
            search(x + 1);
        }
    }
}

int main() {
    cin >> n;
    search(1);
    cout << r << '\n';
}

Test details

Test 1

Verdict: ACCEPTED

input
1

correct output
0

user output
0

Test 2

Verdict: ACCEPTED

input
2

correct output
0

user output
0

Test 3

Verdict: ACCEPTED

input
3

correct output
0

user output
0

Test 4

Verdict: ACCEPTED

input
4

correct output
0

user output
0

Test 5

Verdict: ACCEPTED

input
5

correct output
0

user output
0

Test 6

Verdict: ACCEPTED

input
6

correct output
1

user output
1

Test 7

Verdict: ACCEPTED

input
7

correct output
1

user output
1

Test 8

Verdict: ACCEPTED

input
8

correct output
2

user output
2

Test 9

Verdict: ACCEPTED

input
9

correct output
3

user output
3

Test 10

Verdict: ACCEPTED

input
10

correct output
4

user output
4

Test 11

Verdict: ACCEPTED

input
20

correct output
24

user output
24

Test 12

Verdict: ACCEPTED

input
30

correct output
61

user output
61

Test 13

Verdict: ACCEPTED

input
40

correct output
114

user output
114

Test 14

Verdict: ACCEPTED

input
50

correct output
184

user output
184

Test 15

Verdict: ACCEPTED

input
60

correct output
271

user output
271

Test 16

Verdict: ACCEPTED

input
70

correct output
374

user output
374

Test 17

Verdict: ACCEPTED

input
80

correct output
494

user output
494

Test 18

Verdict: ACCEPTED

input
90

correct output
631

user output
631

Test 19

Verdict: ACCEPTED

input
100

correct output
784

user output
784

Test 20

Verdict: ACCEPTED

input
200

correct output
3234

user output
3234

Test 21

Verdict: ACCEPTED

input
300

correct output
7351

user output
7351

Test 22

Verdict: ACCEPTED

input
400

correct output
13134

user output
13134

Test 23

Verdict: ACCEPTED

input
500

correct output
20584

user output
20584

Test 24

Verdict: ACCEPTED

input
600

correct output
29701

user output
29701

Test 25

Verdict: ACCEPTED

input
700

correct output
40484

user output
40484

Test 26

Verdict: ACCEPTED

input
800

correct output
52934

user output
52934

Test 27

Verdict: ACCEPTED

input
900

correct output
67051

user output
67051

Test 28

Verdict: ACCEPTED

input
1000

correct output
82834

user output
82834