CSES - HIIT Open 2024 - Results
Submission details
Task:Gerbil's run
Sender:Sold days
Submission time:2024-11-16 15:53:58 +0200
Language:C++ (C++20)
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.00 sdetails
#2ACCEPTED0.00 sdetails
#3ACCEPTED0.00 sdetails
#40.00 sdetails
#50.00 sdetails
#60.00 sdetails
#70.00 sdetails
#8ACCEPTED0.00 sdetails
#9ACCEPTED0.00 sdetails
#10ACCEPTED0.00 sdetails
#110.00 sdetails
#120.00 sdetails
#130.00 sdetails
#140.00 sdetails
#15ACCEPTED0.00 sdetails
#16ACCEPTED0.00 sdetails
#17ACCEPTED0.00 sdetails
#180.00 sdetails
#190.00 sdetails
#200.00 sdetails
#21ACCEPTED0.00 sdetails
#220.00 sdetails
#23ACCEPTED0.00 sdetails
#24ACCEPTED0.00 sdetails
#25ACCEPTED0.00 sdetails
#26ACCEPTED0.00 sdetails
#27ACCEPTED0.00 sdetails
#280.00 sdetails
#290.00 sdetails
#300.00 sdetails
#31ACCEPTED0.00 sdetails
#32ACCEPTED0.00 sdetails
#330.00 sdetails
#340.00 sdetails
#350.00 sdetails
#36ACCEPTED0.00 sdetails
#37ACCEPTED0.00 sdetails
#38ACCEPTED0.00 sdetails
#390.00 sdetails
#40ACCEPTED0.00 sdetails
#41ACCEPTED0.01 sdetails
#42ACCEPTED0.01 sdetails
#43ACCEPTED0.00 sdetails
#44ACCEPTED0.01 sdetails
#450.01 sdetails

Code

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

using ld = long double;
using ll = long long;

const ld PI = M_PI;

const ll mult = 400000;
const int range = 100;

ld r = 0;
ld totalLen = 0;

bool check(ld alpha) {
    if (alpha < 0 || alpha >= 1)
        return false;
    ld x = (2 * PI * r) / (1 + alpha);
    return (ll)x % 2 == 0;
}

pair<ll, ll> getAlpha() {
    if (check(0)) {
        return {0, 1};
    }
    ld x = floor(totalLen);
    ld b = totalLen - x;

    ld alphaStart = (totalLen) / (totalLen + b + 1) - 1;
    ll enumer = (ll)(alphaStart * mult);
    for (ll alphaEnum = enumer - range; alphaEnum < enumer + range; ++alphaEnum) {
        if (check((ld)alphaEnum / mult)) {
            return {alphaEnum, mult};
        }
    }

    assert(false);
    return {0, 0};
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);

    cin >> r;
    totalLen = (2 * PI * r);

    auto alpha = getAlpha();
    pair<ll, ll> len = {alpha.first + alpha.second, alpha.second};
    pair<ll, ll> prev = {0, len.second};
    pair<ll, ll> pos = {len.first, len.second};
    while((ld)pos.first / pos.second < totalLen) {
        cout << prev.first << '/' << prev.second << ' ' << pos.first << '/' << pos.second << '\n';
        pos.first += len.first;
        prev = pos;
        pos.first += len.first;
    }

    return 0;
}

Test details

Test 1

Verdict: ACCEPTED

input
1

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1

Test 2

Verdict: ACCEPTED

input
2

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 3

Verdict: ACCEPTED

input
3

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 4

Verdict:

input
4

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 5

Verdict:

input
5

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 6

Verdict:

input
6

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 7

Verdict:

input
7

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 8

Verdict: ACCEPTED

input
8

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 9

Verdict: ACCEPTED

input
9

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 10

Verdict: ACCEPTED

input
10

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 11

Verdict:

input
11

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 12

Verdict:

input
12

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 13

Verdict:

input
13

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 14

Verdict:

input
14

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 15

Verdict: ACCEPTED

input
15

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 16

Verdict: ACCEPTED

input
16

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 17

Verdict: ACCEPTED

input
17

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 18

Verdict:

input
18

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 19

Verdict:

input
19

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 20

Verdict:

input
20

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 21

Verdict: ACCEPTED

input
50

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 22

Verdict:

input
98

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 23

Verdict: ACCEPTED

input
99

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 24

Verdict: ACCEPTED

input
100

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 25

Verdict: ACCEPTED

input
101

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 26

Verdict: ACCEPTED

input
102

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 27

Verdict: ACCEPTED

input
158

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 28

Verdict:

input
159

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 29

Verdict:

input
160

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 30

Verdict:

input
161

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 31

Verdict: ACCEPTED

input
313

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 32

Verdict: ACCEPTED

input
314

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 33

Verdict:

input
315

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 34

Verdict:

input
316

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 35

Verdict:

input
317

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 36

Verdict: ACCEPTED

input
318

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 37

Verdict: ACCEPTED

input
319

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 38

Verdict: ACCEPTED

input
320

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 39

Verdict:

input
500

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
(empty)

Error:
code: input/code.cpp:37: std::pair<long long int, long long int> getAlpha(): Assertion `false' failed.

Test 40

Verdict: ACCEPTED

input
990

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 41

Verdict: ACCEPTED

input
996

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 42

Verdict: ACCEPTED

input
997

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 43

Verdict: ACCEPTED

input
998

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 44

Verdict: ACCEPTED

input
999

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/1 1/1
2/1 3/1
4/1 5/1
6/1 7/1
8/1 9/1
...

Test 45

Verdict:

input
1000

correct output
0/1000000 1000000/1000000
2000000/1000000 3000000/100000...

user output
0/400000 400012/400000
800024/400000 1200036/400000
1600048/400000 2000060/400000
2400072/400000 2800084/400000
3200096/400000 3600108/400000
...