Submission #6945050
Source Code Expand
//disco2016_c.cpp //Sat Aug 17 09:59:30 2019 #include <iostream> #include <string> #include <queue> #include <map> #include <unordered_map> #include <vector> #include <algorithm> #include <math.h> #include <set> #define INTINF 2147483647 #define LLINF 9223372036854775807 using namespace std; using ll=long long; typedef pair<int,int> P; ll gcd (ll a, ll b){ //最大公約数 if (b == 0){ return a; } return gcd(b, a%b); } ll lcm (ll a, ll b){ //最小公倍数 ll temp = gcd(a,b); return (a/temp)*b; } int main(){ ll n,k; cin >> n >> k; ll a[n]; unordered_map<ll,ll> mp; for (int i=0;i<n;i++){ cin >> a[i]; ll temp = gcd(a[i],k); mp[temp]++; } ll ans = 0; for (auto itr=mp.begin();itr!=mp.end();itr++){ for (auto itr2=itr;itr2!=mp.end();itr2++){ if (itr==itr2){ if ((itr->first)%k==0){ ans += (itr->second)*(itr->second-1)/2; } continue; }else if (((itr->first)*(itr2->first))%k==0){ ans += (itr->second) * (itr2->second); } } } cout << ans << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - ロト2 |
User | hornistyf |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1074 Byte |
Status | WA |
Exec Time | 107 ms |
Memory | 1920 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 400 | ||||||
Status |
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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 | 5 ms | 256 KB |
10_random_01.txt | WA | 1 ms | 256 KB |
10_random_02.txt | WA | 1 ms | 256 KB |
10_random_03.txt | AC | 1 ms | 256 KB |
10_random_04.txt | WA | 1 ms | 256 KB |
10_random_05.txt | WA | 1 ms | 256 KB |
20_max_01.txt | AC | 75 ms | 1792 KB |
20_max_02.txt | AC | 72 ms | 1792 KB |
20_max_03.txt | AC | 91 ms | 1792 KB |
20_max_04.txt | AC | 72 ms | 1792 KB |
20_max_05.txt | AC | 107 ms | 1792 KB |
30_overflow_01.txt | AC | 69 ms | 1792 KB |
30_overflow_02.txt | AC | 69 ms | 1792 KB |
40_dmax_01.txt | WA | 101 ms | 1920 KB |
40_dmax_02.txt | WA | 101 ms | 1920 KB |
40_dmax_03.txt | WA | 103 ms | 1920 KB |
50_prime_01.txt | AC | 75 ms | 1792 KB |
50_prime_02.txt | AC | 84 ms | 1792 KB |
50_prime_03.txt | AC | 92 ms | 1792 KB |
60_prime_pow_01.txt | WA | 92 ms | 1792 KB |
60_prime_pow_02.txt | WA | 90 ms | 1792 KB |
60_prime_pow_03.txt | WA | 93 ms | 1792 KB |
70_one_01.txt | AC | 61 ms | 1792 KB |