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public class QuestionOf_11 {
public static void main(String[] args) {
int[] arr = new int[22];
arr[0] = arr[1] = 1;
double sum = 0.0;
for (int i = 2; i < arr.length; i++) {
arr[i] = arr[i - 1] + arr[i - 2];
sum += (double)arr[i]/arr[i-1];
}
System.out.println(sum);
}
}
结果:32.66026079864164
public class QuestionOf_11 {
public static void main(String[] args) {
int[] arr = new int[22];
arr[0] = arr[1] = 1;
double sum = 0.0;
for (int i = 2; i < arr.length; i++) {
arr[i] = arr[i - 1] + arr[i - 2];
}
for (int i = 1; i < arr.length - 1; i++) {
sum += (float)arr[i + 1] / arr[i];
}
System.out.println(sum);
}
}
结果:32.660260796546936