Submission #967888
Source Code Expand
import java.io.*;
import java.math.*;
import java.util.*;
import java.util.Map.Entry;
import static java.util.Arrays.*;
public class Main {
private static final int mod = (int)1e9+7;
final Random random = new Random(0);
final IOFast io = new IOFast();
/// MAIN CODE
public void run() throws IOException {
// int TEST_CASE = Integer.parseInt(new String(io.nextLine()).trim());
int TEST_CASE = 1;
while(TEST_CASE-- != 0) {
int n = io.nextInt();
int K = io.nextInt();
int[] A = io.nextIntArray(n);
TreeMap<Integer, Integer> mp = new TreeMap<>();
for (int i = 0; i < n; i++) {
A[i] = gcd(K, A[i]);
mp.put(A[i], mp.getOrDefault(A[i], 0) + 1);
}
long ans = 0;
for (Entry<Integer, Integer> e1 : mp.entrySet()) {
for (Entry<Integer, Integer> e2 : mp.entrySet()) {
long v = 0;
if ((long)e1.getKey() * e2.getKey() % K == 0) {
v = (long)e1.getValue() * e2.getValue();
}
if (e1.getKey() == e2.getKey()) {
ans += v == 0 ? 0 : e1.getValue() * (e2.getValue() - 1L) / 2;
break;
}
ans += v;
}
}
io.out.println(ans);
}
}
/// TEMPLATE
static int gcd(int n, int r) { return r == 0 ? n : gcd(r, n%r); }
static long gcd(long n, long r) { return r == 0 ? n : gcd(r, n%r); }
static long lcm(long n, long r) { return n / gcd(n, r) * r; }
static <T> void swap(T[] x, int i, int j) { T t = x[i]; x[i] = x[j]; x[j] = t; }
static void swap(int[] x, int i, int j) { int t = x[i]; x[i] = x[j]; x[j] = t; }
void printArrayLn(int[] xs) { for(int i = 0; i < xs.length; i++) io.out.print(xs[i] + (i==xs.length-1?"\n":" ")); }
void printArrayLn(long[] xs) { for(int i = 0; i < xs.length; i++) io.out.print(xs[i] + (i==xs.length-1?"\n":" ")); }
static void dump(Object... o) { System.err.println(Arrays.deepToString(o)); }
void main() throws IOException {
// IOFast.setFileIO("rle-size.in", "rle-size.out");
try { run(); }
catch (EndOfFileRuntimeException e) { }
io.out.flush();
}
public static void main(String[] args) throws IOException { new Main().main(); }
static class EndOfFileRuntimeException extends RuntimeException {
private static final long serialVersionUID = -8565341110209207657L; }
static
public class IOFast {
private BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
private PrintWriter out = new PrintWriter(System.out);
void setFileIn(String ins) throws IOException { in.close(); in = new BufferedReader(new FileReader(ins)); }
void setFileOut(String outs) throws IOException { out.flush(); out.close(); out = new PrintWriter(new FileWriter(outs)); }
void setFileIO(String ins, String outs) throws IOException { setFileIn(ins); setFileOut(outs); }
private static int pos, readLen;
private static final char[] buffer = new char[1024 * 8];
private static char[] str = new char[500*8*2];
private static boolean[] isDigit = new boolean[256];
private static boolean[] isSpace = new boolean[256];
private static boolean[] isLineSep = new boolean[256];
static { for(int i = 0; i < 10; i++) { isDigit['0' + i] = true; } isDigit['-'] = true; isSpace[' '] = isSpace['\r'] = isSpace['\n'] = isSpace['\t'] = true; isLineSep['\r'] = isLineSep['\n'] = true; }
public int read() throws IOException { if(pos >= readLen) { pos = 0; readLen = in.read(buffer); if(readLen <= 0) { throw new EndOfFileRuntimeException(); } } return buffer[pos++]; }
public int nextInt() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); int i = 0; int ret = 0; if(str[0] == '-') { i = 1; } for(; i < len; i++) ret = ret * 10 + str[i] - '0'; if(str[0] == '-') { ret = -ret; } return ret; }
public long nextLong() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); int i = 0; long ret = 0; if(str[0] == '-') { i = 1; } for(; i < len; i++) ret = ret * 10 + str[i] - '0'; if(str[0] == '-') { ret = -ret; } return ret; }
public char nextChar() throws IOException { while(true) { final int c = read(); if(!isSpace[c]) { return (char)c; } } }
int reads(int len, boolean[] accept) throws IOException { try { while(true) { final int c = read(); if(accept[c]) { break; } if(str.length == len) { char[] rep = new char[str.length * 3 / 2]; System.arraycopy(str, 0, rep, 0, str.length); str = rep; } str[len++] = (char)c; } } catch(EndOfFileRuntimeException e) { ; } return len; }
int reads(char[] cs, int len, boolean[] accept) throws IOException { try { while(true) { final int c = read(); if(accept[c]) { break; } cs[len++] = (char)c; } } catch(EndOfFileRuntimeException e) { ; } return len; }
public char[] nextLine() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isLineSep); try { if(str[len-1] == '\r') { len--; read(); } } catch(EndOfFileRuntimeException e) { ; } return Arrays.copyOf(str, len); }
public String nextString() throws IOException { return new String(next()); }
public char[] next() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); return Arrays.copyOf(str, len); }
// public int next(char[] cs) throws IOException { int len = 0; cs[len++] = nextChar(); len = reads(cs, len, isSpace); return len; }
public double nextDouble() throws IOException { return Double.parseDouble(nextString()); }
public long[] nextLongArray(final int n) throws IOException { final long[] res = new long[n]; for(int i = 0; i < n; i++) { res[i] = nextLong(); } return res; }
public int[] nextIntArray(final int n) throws IOException { final int[] res = new int[n]; for(int i = 0; i < n; i++) { res[i] = nextInt(); } return res; }
public int[][] nextIntArray2D(final int n, final int k) throws IOException { final int[][] res = new int[n][]; for(int i = 0; i < n; i++) { res[i] = nextIntArray(k); } return res; }
public int[][] nextIntArray2DWithIndex(final int n, final int k) throws IOException { final int[][] res = new int[n][k+1]; for(int i = 0; i < n; i++) { for(int j = 0; j < k; j++) { res[i][j] = nextInt(); } res[i][k] = i; } return res; }
public double[] nextDoubleArray(final int n) throws IOException { final double[] res = new double[n]; for(int i = 0; i < n; i++) { res[i] = nextDouble(); } return res; }
}
}
Submission Info
Submission Time |
|
Task |
C - ロト2 |
User |
tanzaku |
Language |
Java8 (OpenJDK 1.8.0) |
Score |
400 |
Code Size |
6336 Byte |
Status |
AC |
Exec Time |
362 ms |
Memory |
20304 KB |
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
400 / 400 |
Status |
|
|
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 |
100 ms |
8660 KB |
00_example_02.txt |
AC |
98 ms |
8656 KB |
00_example_03.txt |
AC |
98 ms |
8532 KB |
10_random_01.txt |
AC |
99 ms |
8656 KB |
10_random_02.txt |
AC |
102 ms |
8660 KB |
10_random_03.txt |
AC |
108 ms |
8528 KB |
10_random_04.txt |
AC |
100 ms |
8532 KB |
10_random_05.txt |
AC |
98 ms |
8660 KB |
20_max_01.txt |
AC |
216 ms |
16968 KB |
20_max_02.txt |
AC |
211 ms |
18248 KB |
20_max_03.txt |
AC |
223 ms |
20172 KB |
20_max_04.txt |
AC |
207 ms |
15556 KB |
20_max_05.txt |
AC |
221 ms |
15512 KB |
30_overflow_01.txt |
AC |
207 ms |
15176 KB |
30_overflow_02.txt |
AC |
222 ms |
15728 KB |
40_dmax_01.txt |
AC |
362 ms |
19592 KB |
40_dmax_02.txt |
AC |
362 ms |
19808 KB |
40_dmax_03.txt |
AC |
359 ms |
19820 KB |
50_prime_01.txt |
AC |
209 ms |
18508 KB |
50_prime_02.txt |
AC |
220 ms |
18836 KB |
50_prime_03.txt |
AC |
227 ms |
20048 KB |
60_prime_pow_01.txt |
AC |
228 ms |
20304 KB |
60_prime_pow_02.txt |
AC |
217 ms |
19660 KB |
60_prime_pow_03.txt |
AC |
238 ms |
20176 KB |
70_one_01.txt |
AC |
216 ms |
15212 KB |