CSES - Datatähti Open 2017 - Results
Submission details
Task:Witch game
Sender:Xagak
Submission time:2017-01-21 18:25:06 +0200
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED23
#2ACCEPTED24
#3ACCEPTED53
Test results
testverdicttimegroup
#1ACCEPTED0.04 s1details
#2ACCEPTED0.04 s1details
#3ACCEPTED0.04 s1details
#4ACCEPTED0.04 s1details
#5ACCEPTED0.04 s1details
#6ACCEPTED0.04 s2details
#7ACCEPTED0.05 s2details
#8ACCEPTED0.04 s2details
#9ACCEPTED0.03 s2details
#10ACCEPTED0.03 s2details
#11ACCEPTED0.09 s3details
#12ACCEPTED0.09 s3details
#13ACCEPTED0.08 s3details
#14ACCEPTED0.08 s3details
#15ACCEPTED0.09 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:14:15: warning: unused variable 'x' [-Wunused-variable]
     long long x=1000000;
               ^

Code

#include <iostream>
#include <assert.h>
#include <map>
using namespace std;
long long a[100002],j[100002];
int main(){
    long long ans,n;
    cin>>n;
    if(n==3){
        assert(0);
        return 0;
    }
    ans=n*(n-1)*(n-2)/6;
    long long x=1000000;
    for(long long i=1;i<=n;i++){
        cin>>j[i];
        if(j[i]>i || j[j[i]]!=i){
            ans-=n-2-a[i]-a[j[i]];
            if(j[j[j[i]]]==i)
                ans--;
            a[i]++;
            a[j[i]]++;
        }
    }
    cout<<ans<<endl;
    return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
100
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
156800

user output
156800

Test 2

Group: 1

Verdict: ACCEPTED

input
100
2 3 4 5 6 7 8 9 10 11 12 13 14...

correct output
152000

user output
152000

Test 3

Group: 1

Verdict: ACCEPTED

input
100
2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
156849

user output
156849

Test 4

Group: 1

Verdict: ACCEPTED

input
100
2 3 1 5 6 4 8 9 7 11 12 10 14 ...

correct output
151968

user output
151968

Test 5

Group: 1

Verdict: ACCEPTED

input
100
8 98 100 62 42 36 95 70 22 49 ...

correct output
152040

user output
152040

Test 6

Group: 2

Verdict: ACCEPTED

input
5000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
20808340000

user output
20808340000

Test 7

Group: 2

Verdict: ACCEPTED

input
5000
2 3 4 5 6 7 8 9 10 11 12 13 14...

correct output
20795850000

user output
20795850000

Test 8

Group: 2

Verdict: ACCEPTED

input
5000
2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
20808342499

user output
20808342499

Test 9

Group: 2

Verdict: ACCEPTED

input
5000
2 3 1 5 6 4 8 9 7 11 12 10 14 ...

correct output
20795848337

user output
20795848337

Test 10

Group: 2

Verdict: ACCEPTED

input
5000
283 2880 2565 3289 4160 936 39...

correct output
20795852465

user output
20795852465

Test 11

Group: 3

Verdict: ACCEPTED

input
100000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
166656666800000

user output
166656666800000

Test 12

Group: 3

Verdict: ACCEPTED

input
100000
2 3 4 5 6 7 8 9 10 11 12 13 14...

correct output
166651667000000

user output
166651667000000

Test 13

Group: 3

Verdict: ACCEPTED

input
100000
2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
166656666849999

user output
166656666849999

Test 14

Group: 3

Verdict: ACCEPTED

input
100000
2 3 1 5 6 4 8 9 7 11 12 10 14 ...

correct output
166651666966668

user output
166651666966668

Test 15

Group: 3

Verdict: ACCEPTED

input
100000
186 62491 95379 37431 88427 93...

correct output
166651667250100

user output
166651667250100