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public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
for(int a0 = 0; a0 < n; a0++){
String s = in.next();
System.out.println(s.chars().distinct().count());
}
}
}
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String Construction
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JAVA8 SOLUTION:
import java.io.; import java.util.; import java.text.; import java.math.; import java.util.regex.*;
public class Solution {
}