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1010. 一元多项式求导 (25).java

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1010. 一元多项式求导 (25).java

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import java.util.Scanner;

public class Main {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

int flag = 0;

while (in.hasNext()) {

int x = in.nextInt();

int n = in.nextInt();

if (n != 0) {

if (flag == 0) {

System.out.print(x * n);

} else {

System.out.print(" " + x * n);

}

System.out.print(" " + (n - 1));

flag = 1;

}

}

if (flag == 0) {

System.out.print("0 0");

}

}

}