結果
| 問題 |
No.182 新規性の虜
|
| コンテスト | |
| ユーザー |
a3636tako
|
| 提出日時 | 2016-08-25 15:45:06 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 232 ms / 5,000 ms |
| コード長 | 2,119 bytes |
| コンパイル時間 | 4,878 ms |
| コンパイル使用メモリ | 78,432 KB |
| 実行使用メモリ | 49,312 KB |
| 最終ジャッジ日時 | 2024-12-27 11:33:10 |
| 合計ジャッジ時間 | 9,813 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 27 |
ソースコード
import java.io.*;
import java.util.*;
public class Main{
public void solve(){
int N = nextInt();
HashMap<Integer, Integer> set = new HashMap<>();
for(int i = 0; i < N; i++){
int k = nextInt();
Integer val = set.get(k);
if(val == null){
val = 1;
}else{
val = 2;
}
set.put(k, val);
}
int ans = 0;
for(int v : set.values()){
if(v == 1){
ans++;
}
}
out.println(ans);
}
private static PrintWriter out;
public static void main(String[] args){
out = new PrintWriter(System.out);
new Main().solve();
out.flush();
}
public static int nextInt(){
int num = 0;
String str = next();
boolean minus = false;
int i = 0;
if(str.charAt(0) == '-'){
minus = true;
i++;
}
int len = str.length();
for(;i < len; i++){
char c = str.charAt(i);
if(!('0' <= c && c <= '9')) throw new RuntimeException();
num = num * 10 + (c - '0');
}
return minus ? -num : num;
}
public static long nextLong(){
long num = 0;
String str = next();
boolean minus = false;
int i = 0;
if(str.charAt(0) == '-'){
minus = true;
i++;
}
int len = str.length();
for(;i < len; i++){
char c = str.charAt(i);
if(!('0' <= c && c <= '9')) throw new RuntimeException();
num = num * 10l + (c - '0');
}
return minus ? -num : num;
}
public static String next(){
int c;
while(!isAlNum(c = read())){}
StringBuilder build = new StringBuilder();
build.append((char)c);
while(isAlNum(c = read())){
build.append((char)c);
}
return build.toString();
}
private static byte[] inputBuffer = new byte[1024];
private static int bufferLength = 0;
private static int bufferIndex = 0;
private static int read(){
if(bufferLength < 0) throw new RuntimeException();
if(bufferIndex >= bufferLength){
try{
bufferLength = System.in.read(inputBuffer);
bufferIndex = 0;
}catch(IOException e){
throw new RuntimeException(e);
}
if(bufferLength <= 0) return (bufferLength = -1);
}
return inputBuffer[bufferIndex++];
}
private static boolean isAlNum(int c){
return '!' <= c && c <= '~';
}
}
a3636tako