Submission #7428415


Source Code Expand

#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
using namespace std;
typedef long long int ll;

long long GCD(long long a, long long b) { return b ? GCD(b, a%b) : a; }

int main(){
    int n,k; cin >> n >> k;
    vector<int> a(n);
    map<int,int> mp;
    for(int i=0;i<n;i++){
        cin >> a[i];
        mp[GCD(a[i],k)]++;
    }
    ll ans=0;
    for(auto p:mp){
        for(auto q:mp){
            ll x=p.first*q.first;
            if(p.first>q.first)continue;
            else if(p.first==q.first){
                if(x%k==0){
                    ll m=(p.second-1)*p.second/2;
                    ans+=m;
                }
            }
            else{
                if(x%k==0){
                    ll m=(q.second)*p.second;
                    ans+=m;
                }
            }
        }
    }
    cout << ans << endl;
}

Submission Info

Submission Time
Task C - ロト2
User KKT89
Language C++14 (GCC 5.4.1)
Score 0
Code Size 899 Byte
Status WA
Exec Time 119 ms
Memory 1152 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 400
Status
AC × 3
AC × 8
WA × 17
Set Name Test Cases
Sample 00_example_01.txt, 00_example_02.txt, 00_example_03.txt
All 00_example_01.txt, 00_example_02.txt, 00_example_03.txt, 10_random_01.txt, 10_random_02.txt, 10_random_03.txt, 10_random_04.txt, 10_random_05.txt, 20_max_01.txt, 20_max_02.txt, 20_max_03.txt, 20_max_04.txt, 20_max_05.txt, 30_overflow_01.txt, 30_overflow_02.txt, 40_dmax_01.txt, 40_dmax_02.txt, 40_dmax_03.txt, 50_prime_01.txt, 50_prime_02.txt, 50_prime_03.txt, 60_prime_pow_01.txt, 60_prime_pow_02.txt, 60_prime_pow_03.txt, 70_one_01.txt
Case Name Status Exec Time Memory
00_example_01.txt AC 1 ms 256 KB
00_example_02.txt AC 1 ms 256 KB
00_example_03.txt AC 1 ms 256 KB
10_random_01.txt AC 1 ms 256 KB
10_random_02.txt WA 1 ms 256 KB
10_random_03.txt WA 1 ms 256 KB
10_random_04.txt WA 1 ms 256 KB
10_random_05.txt AC 1 ms 256 KB
20_max_01.txt AC 74 ms 1024 KB
20_max_02.txt WA 70 ms 1024 KB
20_max_03.txt WA 91 ms 1024 KB
20_max_04.txt WA 70 ms 1024 KB
20_max_05.txt AC 105 ms 1024 KB
30_overflow_01.txt WA 67 ms 1024 KB
30_overflow_02.txt WA 67 ms 1024 KB
40_dmax_01.txt WA 119 ms 1152 KB
40_dmax_02.txt WA 119 ms 1152 KB
40_dmax_03.txt WA 119 ms 1152 KB
50_prime_01.txt WA 73 ms 1024 KB
50_prime_02.txt WA 82 ms 1024 KB
50_prime_03.txt WA 93 ms 1024 KB
60_prime_pow_01.txt AC 92 ms 1024 KB
60_prime_pow_02.txt WA 89 ms 1024 KB
60_prime_pow_03.txt WA 90 ms 1024 KB
70_one_01.txt WA 59 ms 1024 KB