SRM 145 DIV2 | 218.25/250

文字の配列の中から、指定されたcharacterの個数を求める問題。

[java]
public class ImageDithering {
public int count(String dithered, String[] screen) {
String allScreen = "";
for(String str : screen)
allScreen += str;
int cnt = allScreen.length() - allScreen.replaceAll("["+dithered+"]","").length();
return cnt;
}
}
[/java]