Tekijät

#include <iostream>
#include <unordered_set>
using namespace std;

long* d;

int primes[] = { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137,
    139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293,
    307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467,
    479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659,
    661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859,
    863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997 };

int test(int a, int b) {
    if (a == b) { return 0; }
    for (int p = 0; p < 168; p++) {
        int prime = primes[p];
        if (prime > a || prime > b) { return 1; }
        if (((a % prime) == 0) && ((b % prime) == 0)) { return 0; }
    }
    return 1;
}

int main()
{
    int amo;
    cin >> amo;
    
    d = new long[amo*4]();
    
    int num;
    int sum = 0;
    for (int i = 0; i < amo; i++) {
        cin >> num;
        int ib = i << 2;
        d[ib] = num;
        for (int p = 0; p < 168; p++) {
            if (num < primes[p]) break;
            if ((num % primes[p]) == 0) { d[ib + 1 + (p >> 6)] |= (1 << (p & 63)); }
        }
        for (int j = 0; j < i; j++) {
            bool ok = d[ib] != d[j << 2];
            for (int k = 1; ok && k < 4; k++) {
                if (d[ib + k] & d[(j << 2) + k]) { ok = false; }
            }
            if (ok) { sum++; }
        }
    }
    cout << sum << endl;
}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

Test 4

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 5

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 6

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 7

Group: 3

Verdict: TIME LIMIT EXCEEDED