public static int result(int n) throws ValidationException{
if(n<0){
throw new ValidationException("非法参数");
}
if(n==1||n==2){
return 1;
}else{
return result(n-1)+result(n-2);
}
}
public static int result(int n) throws ValidationException{
if(n<0){
throw new ValidationException("非法参数");
}
if(n==1||n==2){
return 1;
}else{
return result(n-1)+result(n-2);
}
}
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