题解 | #求小球落地5次后所经历的路程和第5次反弹的高度#
求小球落地5次后所经历的路程和第5次反弹的高度
https://www.nowcoder.com/practice/2f6f9339d151410583459847ecc98446
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.text.DateFormat;
import java.text.DecimalFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;
import java.util.*;
import java.util.function.Function;
import java.util.function.IntFunction;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.Stream;
import static java.util.Arrays.*;
import static java.util.stream.Stream.*;
public class Main {
public static void main(String[] args) throws IOException {
testTh();
}
private static void testTh() throws IOException {
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
String str;
while ((str = bf.readLine()) != null) {
Double parseInt = Double.parseDouble(str);
BigDecimal bigDecimal = new BigDecimal(parseInt + parseInt + parseInt / 2 +
parseInt / 4 + parseInt / 8);
BigDecimal high = new BigDecimal(parseInt / 32);
DecimalFormat format = new DecimalFormat("#0.00000");
System.out.println(format.format(bigDecimal));
System.out.println(format.format(high));
}
}
}
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