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直接把f(0),f(1),f(2)看做整体,代入法超简单~~import java.util.Scanner; class Main { public static void main(String[] args) { Scanner cin=new Scanner(System.in); while(cin.hasNext()){ int f0=cin.nextInt(); int f1=cin.nextInt(); int f2=cin.nextInt(); int f3=f0-3*f1+3*f2; int f4=3*f0-8*f1+6*f2; int f5=6*f0-15*f1+10*f2; System.out.println(f3+" "+f4+" "+f5); } }} Followed by:
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