CSES - Aalto Competitive Programming 2024 - wk8 - Mon - Results
Submission details
Task:Optimal sort
Sender:htoik
Submission time:2024-10-28 17:43:19 +0200
Language:C++ (C++20)
Status:READY
Result:
Test results
testverdicttime
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Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'ull' {aka 'long long unsigned int'} [-Wsign-compare]
   30 |     for(int i=0; i<n; i++){
      |                  ~^~
input/code.cpp:36:19: warning: comparison of integer expressions of different signedness: 'int' and 'ull' {aka 'long long unsigned int'} [-Wsign-compare]
   36 |     for(int i=0; i<n; i++){
      |                  ~^~

Code

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;

// unsigned l[(int)1e5+2];
// unsigned e[(int)1e5+2];
bool v[(int)1e5+2];

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

    ull n;
    cin >> n;

    map<ull, ull> e;
    vector<ull> as;
    as.reserve(n);

    for(ull i=0; i<n; i++){
        ull a;
        cin >> a;
        as.push_back(a);
    }

    vector<ull> b = as;
    sort(b.begin(), b.end());

    for(int i=0; i<n; i++){
        auto it = find(as.begin(), as.end(), as[i]);
        e[as[i]] = (int)(it - as.begin());
    }

    ull c = 0;
    for(int i=0; i<n; i++){
        ull a = as[i];
        if(!v[a]){
            v[a] = 1;

            ull b = e[a];
            while(!v[b]){
                v[a] = 1;
                b = e[b];
                if(b == a)
                    break;
                v[b] = 1;
                c++;
            }
            v[a] = 1;
        }
    }
    cout << (c-1) << "\n";
}

Test details

Test 1

Verdict: ACCEPTED

input
1
14 

correct output
0

user output
0

Test 2

Verdict:

input
2
18 1 

correct output
1

user output
0

Test 3

Verdict:

input
2
3 8 

correct output
0

user output
1

Test 4

Verdict:

input
3
6 13 8 

correct output
1

user output
2

Test 5

Verdict:

input
3
8 6 14 

correct output
1

user output
2

Test 6

Verdict:

input
3
19 11 5 

correct output
1

user output
2

Test 7

Verdict:

input
4
17 15 16 13 

correct output
1

user output
3

Test 8

Verdict:

input
4
16 8 12 19 

correct output
2

user output
3

Test 9

Verdict: ACCEPTED

input
4
13 18 5 15 

correct output
3

user output
3

Test 10

Verdict: ACCEPTED

input
4
20 18 11 17 

correct output
3

user output
3

Test 11

Verdict:

input
5
17 12 15 13 11 

correct output
2

user output
4

Test 12

Verdict:

input
5
15 20 9 1 19 

correct output
4

user output
3

Test 13

Verdict: ACCEPTED

input
5
1 11 9 19 4 

correct output
2

user output
2

Test 14

Verdict:

input
5
17 2 15 6 12 

correct output
4

user output
3

Test 15

Verdict: ACCEPTED

input
5
4 18 20 11 19 

correct output
3

user output
3

Test 16

Verdict:

input
5
2 5 8 17 18 

correct output
0

user output
3

Test 17

Verdict: ACCEPTED

input
5
19 5 7 17 18 

correct output
4

user output
4

Test 18

Verdict:

input
5
2 5 9 7 16 

correct output
1

user output
3

Test 19

Verdict:

input
5
8 20 1 18 5 

correct output
2

user output
3

Test 20

Verdict:

input
5
10 8 11 3 1 

correct output
4

user output
2

Test 21

Verdict: ACCEPTED

input
10
8 18 15 13 6 12 9 17 2 11 

correct output
6

user output
6

Test 22

Verdict:

input
10
5 7 1 19 9 20 8 3 2 15 

correct output
9

user output
4

Test 23

Verdict:

input
10
5 11 10 7 4 14 19 1 9 13 

correct output
8

user output
4

Test 24

Verdict:

input
10
17 12 2 3 18 15 9 6 11 1 

correct output
9

user output
5

Test 25

Verdict: ACCEPTED

input
10
18 13 20 12 4 5 19 15 14 11 

correct output
7

user output
7

Test 26

Verdict:

input
10
18 8 17 2 10 13 16 5 19 20 

correct output
7

user output
6

Test 27

Verdict:

input
10
3 5 18 19 17 2 1 20 8 7 

correct output
8

user output
4

Test 28

Verdict:

input
10
9 7 16 5 20 2 10 15 11 6 

correct output
7

user output
5

Test 29

Verdict:

input
10
17 8 11 20 18 5 16 9 1 13 

correct output
8

user output
5

Test 30

Verdict:

input
10
5 10 11 2 1 7 3 9 18 8 

correct output
9

user output
3

Test 31

Verdict:

input
100
567896598 831327091 483130123 ...

correct output
95

user output
(empty)

Test 32

Verdict:

input
100
253498609 556362063 442153869 ...

correct output
95

user output
(empty)

Test 33

Verdict:

input
100
833824080 874174469 536879893 ...

correct output
96

user output
(empty)

Test 34

Verdict:

input
100
55262494 701594610 766185388 6...

correct output
98

user output
(empty)

Test 35

Verdict:

input
100
385222461 258813232 585406893 ...

correct output
95

user output
(empty)

Test 36

Verdict:

input
100
528427003 520690782 556647080 ...

correct output
92

user output
(empty)

Test 37

Verdict:

input
100
845689539 115595477 723524474 ...

correct output
95

user output
(empty)

Test 38

Verdict:

input
100
566683130 399845016 457901037 ...

correct output
98

user output
(empty)

Test 39

Verdict:

input
100
401801721 431563805 933290530 ...

correct output
95

user output
(empty)

Test 40

Verdict:

input
100
941909102 224913296 697438766 ...

correct output
97

user output
(empty)

Test 41

Verdict:

input
200
444811497 903431470 720091934 ...

correct output
191

user output
(empty)

Test 42

Verdict:

input
200
336536656 534840541 835789078 ...

correct output
194

user output
(empty)

Test 43

Verdict:

input
200
395789335 866736363 824087376 ...

correct output
195

user output
(empty)

Test 44

Verdict:

input
200
238325464 289089504 743727937 ...

correct output
192

user output
(empty)

Test 45

Verdict:

input
200
718880754 431102449 403271411 ...

correct output
197

user output
(empty)

Test 46

Verdict:

input
200
97225921 989421484 860498340 2...

correct output
194

user output
(empty)

Test 47

Verdict:

input
200
296729043 504301807 26318971 8...

correct output
193

user output
(empty)

Test 48

Verdict:

input
200
903692950 776814822 973264570 ...

correct output
196

user output
(empty)

Test 49

Verdict:

input
200
290066783 874736248 463312759 ...

correct output
192

user output
(empty)

Test 50

Verdict:

input
200
973107823 90258367 557823872 1...

correct output
194

user output
(empty)

Test 51

Verdict:

input
1000
592912152 847045692 284064425 ...

correct output
990

user output
(empty)

Test 52

Verdict:

input
1000
407810678 616563051 942898335 ...

correct output
990

user output
(empty)

Test 53

Verdict:

input
1000
618641025 671935409 944035992 ...

correct output
993

user output
(empty)

Test 54

Verdict:

input
1000
366766968 558964810 539824828 ...

correct output
994

user output
(empty)

Test 55

Verdict:

input
1000
307827860 66173733 860833950 9...

correct output
994

user output
(empty)

Test 56

Verdict:

input
1000
249869917 995683003 692483481 ...

correct output
991

user output
(empty)

Test 57

Verdict:

input
1000
955687818 719718081 43478262 6...

correct output
990

user output
(empty)

Test 58

Verdict:

input
1000
734196441 465297605 360643915 ...

correct output
992

user output
(empty)

Test 59

Verdict:

input
1000
851978986 549468516 638503725 ...

correct output
988

user output
(empty)

Test 60

Verdict:

input
1000
310014536 901327171 160589368 ...

correct output
992

user output
(empty)

Test 61

Verdict:

input
100000
614666693 269733332 88642683 5...

correct output
99989

user output
(empty)

Test 62

Verdict:

input
100000
272940982 811925955 61591592 5...

correct output
99992

user output
(empty)

Test 63

Verdict:

input
100000
620599476 742651279 318143272 ...

correct output
99989

user output
(empty)

Test 64

Verdict:

input
100000
848936553 838116035 936109023 ...

correct output
99983

user output
(empty)

Test 65

Verdict:

input
100000
480849086 599714294 875965742 ...

correct output
99984

user output
(empty)

Test 66

Verdict:

input
100000
888068198 739874627 942196434 ...

correct output
99987

user output
(empty)

Test 67

Verdict:

input
100000
169827791 713679537 698075748 ...

correct output
99986

user output
(empty)

Test 68

Verdict:

input
100000
636712086 376507123 906440322 ...

correct output
99987

user output
(empty)

Test 69

Verdict:

input
100000
300349845 13933235 833947124 8...

correct output
99985

user output
(empty)

Test 70

Verdict:

input
100000
200888519 710864746 665880694 ...

correct output
99985

user output
(empty)