結果

問題 No.11 カードマッチ
ユーザー CrazyBBBCrazyBBB
提出日時 2016-03-06 15:05:25
言語 Java
(openjdk 23)
結果
AC  
実行時間 78 ms / 5,000 ms
コード長 3,508 bytes
コンパイル時間 2,203 ms
コンパイル使用メモリ 77,348 KB
実行使用メモリ 39,760 KB
最終ジャッジ日時 2024-10-11 20:02:52
合計ジャッジ時間 4,195 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 19
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;
public class Main {
public static void main(String[] args) {
FastScanner sc = new FastScanner();
int W = sc.nextInt();
int H = sc.nextInt();
int N = sc.nextInt();
int[] S = new int[N];
int[] K = new int[N];
boolean[] chW = new boolean[W];
boolean[] chH = new boolean[H];
for (int i=0; i<N; i++) {
S[i] = sc.nextInt();
K[i] = sc.nextInt();
chW[S[i]-1] = true;
chH[K[i]-1] = true;
}
long cntW = 0;
long cntH = 0;
for (int i=0; i<W; i++) {
if (chW[i]) cntW++;
}
for (int i=0; i<H; i++) {
if (chH[i]) cntH++;
}
long ans = cntW*H + W*cntH - cntW*cntH - N;
System.out.println(ans);
}
}
///////////////////////////////////////////////////////
class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
public boolean hasNext() { skipUnprintable(); return hasNextByte();}
public String next() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
if (!hasNext()) throw new NoSuchElementException();
int n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
}
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