微軟實習生筆試題目
Choose部分是我自己做的答案,非標準答案.有些題目選項記不起來了,非常抱歉.
1. Selection sort 80 items, after 32 iterations, how many positions of items are determined?
Choose：32。
2. Which is used in sync process//thread in operation system?
A. Mutex B.mailbox C.Semaphore D.local procedure call
Choose: AC
3. Size of a stack is 5, input is a sequence 1, 2, …, 7, which is possible output?
A. 1234567 B. 7654321 C.5643721 D. 1765432 E. 3217564
Choose: AC
4. 010111001 * 011001 + 1101110 = ?
A. 0001010000111111 B. 0101011101110011 C. 0011010000110101
Choose: A
5. What is the output of the follow code?
void main(int argc, char* argv[]) {
int i = 11;
int const *p = &i;
p++;
cout<<*p<
A. 11 B. 12 C. Garbage value D. Comipler error E. None of above
Choose: C
6. Which code is correct?
C. vector
vector
return v;
}
E. None of above
Choose: C
7. Which number has difference 78633 after 180-degree rotation?
A. 60918 B.91086 C. 18609 D. 10968 E.86901
Choose: D
8 Which statement is true?
A. Inorder and preorder can determine a Binary tree
B. Postorder and preorder can determine a Binary tree
C. For almost sorted array, Insertion sort is more efficient than Quicksort
D. If T(n)=2T(n/2)+⊖(n), Then T(n)=⊖(nLogn)
E. none of above
Choose: ACD
9. Which statement is true?
A. Insertion and buble sort are not effient for large data sets
B. The complexity of Quick Sort is O(n2) in worst case
C. It is needed 6 swap operations to sort sequence 7,6,5,4,3,2,1(ascending) by Selection sort
D. Heap sort has two operations: Insertion and root deletion
E. None of above
No choose
12. The output of the following code is 0 20 1 20, what are the type of a and b?
class Test{
____ int a;
____ int b;
Test(int _a, int _b) {a = _a; b=_b;}
}
void main() {
Test t1(0, 0), t2(1,1);
t1.b = 10;
t2.b = 20;
cout<
}
A. static/const B. const/static C. __/static D. const static/static E. None of
above
Choose: C
13. A 3-order B-tree has 2047 key words, what is the maximum height?
A. 11 B. 12 C. 13 D. 14
no choose
14. Which can be used both to variable and function?
A. static B. virtual C. extern D. inline E. const
Choose: ACE
15. What is the output of the follow code?
char * f(char *str, char ch) {
char *it1 = str;
char *it2 = str;
while(*it2 != '\0') {
while(*it2 == ch)
{
it2++;
}
*it1++ = *it2++;
}
return str;
}
int main(int argc, char* argv[]) {
char *a = new char[10];
strcpy(a, "abcdcccd");
cout<
return 0;
}
A. abdcccd B. abdd C. abcc D. abddcccd E. Access violation
Choose: D
16. What is the complexity of the result call of power(b, e) in the follow code?
int power(int b, int e) {
if(e==0) return 1;
if(e%2 == 0) return power(b*b, e/2);
return b*power(b*b,e/2);
}
A. logarithmic B. linear C. quadratic D. exponentical
Choose: A
17. Take 2 cards from one full poker(52 cards, 26 red and 26 black) and half poker each, what is the probability of the event that two cards are both red?
A. 1/2,1/2 B. 25/102,12/50 C. 50/51, 24/25 D. 25/51,12/25 E. 25/51,1/2
Choose: B
18. How many kinds of output of stack with the input 1,2,…,n?
B. C_2n^n-C_2n^(n+1) C. ((2n)!)/(n+1)n!n! D. n! E. none
Choose: C
19. What is the minimum time and space complexity to compute the Largest Increased Subsequence(LIS) of array?
A. N^2,N^2 B. N^2,N C. NlogN,N D. N, N E. N,C
Choose: C
20. What is the output of the follow code?
struct Item{
char c;
Item *next;
};
Item* f1(Item* x){
Item *prev = NULL;
Item *curr = x;
while(curr) { Item *next = curr->next;
curr->next = prev;
prev = curr;
curr = next;
}
return prev;
}
void f2(Item *x){
while(x){
cout<
x = x->next;
}
}
int main(int argc, char* argv[]){
Item *x, d = {'d', NULL}, c = {'c', &d}, b = {'b', &c}, a = {'a', &b};
x = f1(&a);
f2(x);
return 0;
}
Choose: dcba
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