// 請(qǐng)計(jì)算一下func1基本操作執(zhí)行了多少次？
void func1(int N){
   int count = 0;
   for (int i = 0; i < N ; i++) {
       for (int j = 0; j < N ; j++) {
           count++;
       }
   }
   for (int k = 0; k < 2 * N ; k++) {
       count++;
   }
   int M = 10;
  while ((M--) > 0) {
       count++;
   }
 System.out.println(count);
}

// 計(jì)算func2的時(shí)間復(fù)雜度？
void func2(int N) {
int count = 0;
for (int k = 0; k < 2 * N ; k++) {
   count++; }
int M = 10;
while ((M--) > 0) {
   count++; }
System.out.println(count);
}

// 計(jì)算func3的時(shí)間復(fù)雜度？
void func3(int N, int M) {
int count = 0;
for (int k = 0; k < M; k++) {
   count++; }
for (int k = 0; k < N ; k++) {
   count++; }
System.out.println(count);
}

// 計(jì)算func4的時(shí)間復(fù)雜度？
void func4(int N) {
int count = 0;
for (int k = 0; k < 100; k++) {
   count++; }
System.out.println(count);
}

// 計(jì)算bubbleSort的時(shí)間復(fù)雜度？
void bubbleSort(int[] array) {
   for (int end = array.length; end > 0; end--) {
       boolean sorted = true;
       for (int i = 1; i < end; i++) {
           if (array[i - 1] > array[i]) {
            Swap(array, i - 1, i);
               sorted = false;
           }
       }
       if (sorted == true) {
           break;
       }
   }
}

// 計(jì)算binarySearch的時(shí)間復(fù)雜度？
int binarySearch(int[] array, int value) {
   int begin = 0;
   int end = array.length - 1;
   while (begin <= end) {
       int mid = begin + ((end-begin) / 2);
       if (array[mid] < value)
           begin = mid + 1;
       else if (array[mid] > value)
           end = mid - 1;
       else
           return mid;
   }
   return -1; }

// 計(jì)算階乘遞歸factorial的時(shí)間復(fù)雜度？
long factorial(int N) {
 return N < 2 ? N : factorial(N-1) * N; }

// 計(jì)算bubbleSort的空間復(fù)雜度？
void bubbleSort(int[] array) {
for (int end = array.length; end > 0; end--) {
     boolean sorted = true;
     for (int i = 1; i < end; i++) {
         if (array[i - 1] > array[i]) {
             Swap(array, i - 1, i);
             sorted = false;
         }
     }
     if (sorted == true) {
         break;
     }
 }
}

// 計(jì)算fibonacci的空間復(fù)雜度？
int[] fibonacci(int n) {
long[] fibArray = new long[n + 1];
fibArray[0] = 0;
fibArray[1] = 1;
for (int i = 2; i <= n ; i++) {
  fibArray[i] = fibArray[i - 1] + fibArray [i - 2];
 }
return fibArray; 
}

// 計(jì)算階乘遞歸Factorial的空間復(fù)雜度？
long factorial(int N) {
 return N < 2 ? N : factorial(N-1)*N;
 }