Qualcomm面经# JobHunting - 待字闺中
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个人背景是fresh cs PhD。面试挺顺利，感觉都不错，主要围绕简历上的项目讨论。但
不幸被拒。Hiring manager说 definitely impressed with your interview，但只有
一个职位。说是把我推荐给其他组了。 这个是客气话不？ 这种还有戏么？Recruiter
电话里也说过我被推荐给其他组了，但是都快一个月了，也没消息。Recruiter也从不
回email。是不是还没有其他组表示感兴趣？ Anyway, move on了。
1. Read code to say which c routine function it is. Interviewer want to see
how you understand a program.
00009 void *
00010 f1(register const void *p1, register const void *p2,
00011 register size_t n1, register size_t n2,
00012 int (*f2)(const void *, const void *))
00013 {
00014 register const void *p3;
00015 register int n3;
00016
00017 while (n1 > 0) {
00018 p3 = (char *)p2 + n2 * (n1 >> 1);
00019 if ((n3 = (*f2)(p1, p3)) == 0)
00020 return (void *)p3;
00021 if (n3 >= 0) {
00022 p2 = (char *)p3 + n2;
00023 n1 = (n1 - 1) >> 1;
00024 } else
00025 n1 >>= 1;
00026 }
00027 return (void *)NULL;
00028 }
2. Design pattern used in your project.
3. Data structure used in your project?
4. Find the number of leading zero for a 64 bit long, given a function to
find the position of first set bit in a 32 bit integer.
4. Design a library routine to set a bit in a byte array.
5. Hex, Oct and binary of an integer.
6. What is register? Why register?
7. What is sizeof? Why sizeof?
8. x*7 without a multiplier in at least two ways.
9. What is provided by operating system?
9. Static keyword in c c++.
10. What is the difference between tcp and udp ? What is the same?
11. What is icmp? How to implement ping?
不幸被拒。Hiring manager说 definitely impressed with your interview，但只有
一个职位。说是把我推荐给其他组了。 这个是客气话不？ 这种还有戏么？Recruiter
电话里也说过我被推荐给其他组了，但是都快一个月了，也没消息。Recruiter也从不
回email。是不是还没有其他组表示感兴趣？ Anyway, move on了。
1. Read code to say which c routine function it is. Interviewer want to see
how you understand a program.
00009 void *
00010 f1(register const void *p1, register const void *p2,
00011 register size_t n1, register size_t n2,
00012 int (*f2)(const void *, const void *))
00013 {
00014 register const void *p3;
00015 register int n3;
00016
00017 while (n1 > 0) {
00018 p3 = (char *)p2 + n2 * (n1 >> 1);
00019 if ((n3 = (*f2)(p1, p3)) == 0)
00020 return (void *)p3;
00021 if (n3 >= 0) {
00022 p2 = (char *)p3 + n2;
00023 n1 = (n1 - 1) >> 1;
00024 } else
00025 n1 >>= 1;
00026 }
00027 return (void *)NULL;
00028 }
2. Design pattern used in your project.
3. Data structure used in your project?
4. Find the number of leading zero for a 64 bit long, given a function to
find the position of first set bit in a 32 bit integer.
4. Design a library routine to set a bit in a byte array.
5. Hex, Oct and binary of an integer.
6. What is register? Why register?
7. What is sizeof? Why sizeof?
8. x*7 without a multiplier in at least two ways.
9. What is provided by operating system?
9. Static keyword in c c++.
10. What is the difference between tcp and udp ? What is the same?
11. What is icmp? How to implement ping?
