Witch game

#include <iostream>
#include <cstring>
#include <algorithm>
#include <set>
#include <vector>
#define long long long
 
using namespace std;
 
int N;
int acc[100001];
set<int> adj[100001];
 
int main() {
    ios_base::sync_with_stdio(false);
 
    cin >> N;
    for (int i = 0; i < N; i++) {
        int j;
        cin >> j;
        j--;
        acc[i] = j;
    }
    long total = 0;
    for (int a = 0; a < N; a++) {
        for (int b = a+1; b < N; b++) {
            for (int c = b+1; c < N; c++) {
                if (acc[a] == b || acc[b] == a) continue;
                if (acc[a] == c || acc[c] == a) continue;
                if (acc[c] == b || acc[b] == c) continue;
                total++;
            }
        }
    }
    cout << total << "\n";
    return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 7

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 8

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 9

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 11

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 12

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 15

Group: 3

Verdict: TIME LIMIT EXCEEDED