Cracking the Coding Interview - Fooo

Recommendations

Info

Solutions to Chapter 16 | Low Level 16 10 Write a function called my2DAlloc which allocates a two dimensional array Minimize the number of calls to malloc and make sure that the memory is accessible by the notation arr[i][j] SOLUTION We will use one call to malloc CareerCup com pg 82 Allocate one block of memory to hold the row vector and the array data The row vector will reside in rows * sizeof(int*) bytes The integers in the array will take up another rows * cols * sizeof(int) bytes Constructing the array in a single malloc has the added benefit of allowing disposal of the array with a single free call rather than using a special function to free the subsidiary data blocks 1 #include 2 3 int** My2DAlloc(int rows, int cols) { 4 int header = rows * sizeof(int*); 5 int data = rows * cols * sizeof(int); 6 int** rowptr = (int**)malloc(header + data); 7 int* buf = (int*)(rowptr + rows); 8 int k; 9 for (k = 0; k < rows; ++k) { 10 rowptr[k] = buf + k*cols; 11 } 12 return rowptr; 13 } 2 4 8
Solutions to Chapter 17 | Networking 17 1 Explain what happens, step by step, after you type a URL into a browser Use as much detail as possible SOLUTION 2 4 9 Cracking the Coding Interview | Knowledge Based pg 84 There’s no right, or even complete, answer for this question This question allows you to go into arbitrary amounts of detail depending on what you’re comfortable with Here’s a start though: 1 Browser contacts the DNS server to find the IP address of URL 2 DNS returns back the IP address of the site 3 Browser opens TCP connection to the web server at port 80 4 Browser fetches the html code of the page requested 5 Browser renders the HTML in the display window 6 Browser terminates the connection when window is closed One of the most interesting steps is Step 1 and 2 - “Domain Name Resolution ” The web addresses we type are nothing but an alias to an IP address in human readable form Mapping of domain names and their associated Internet Protocol (IP) addresses is managed by the Domain Name System (DNS), which is a distributed but hierarchical entity Each domain name server is divided into zones A single server may only be responsible for knowing the host names and IP addresses for a small subset of a zone, but DNS servers can work together to map all domain names to their IP addresses That means if one domain name server is unable to find the IP addresses of a requested domain then it requests the information from other domain name servers
Page 1 and 2:
CRACKING THE C O D I N G I N T E R
Page 4 and 5:
CRACKING THE C O D I N G I N T E R
Page 7 and 8:
Table of Contents Foreword 4 Introd
Page 10 and 11:
Dear Readers, CareerCup com Forewor
Page 12 and 13:
My Approach Introduction The focus
Page 14 and 15:
Behind the Scenes | The Microsoft I
Page 16 and 17:
Behind the Scenes | The Google Inte
Page 18 and 19:
Behind the Scenes | The Yahoo Inter
Page 20 and 21:
Interview War Stories the next few
Page 22 and 23:
Interview War Stories | Failure to
Page 24 and 25:
Interview War Stories | You Can (Ma
Page 26 and 27:
Before the Interview
Page 28 and 29:
Before the Interview | Resume Advic
Page 30 and 31:
Before the Interview | Behavioral P
Page 32:
What You Need To Know Before the In
Page 35 and 36:
At the Interview | Handling Behavio
Page 37 and 38:
At the Interview | Handling Technic
Page 39 and 40:
At the Interview | Handling Technic
Page 41 and 42:
At the Interview | Five Algorithm A
Page 43 and 44:
At the Interview | The Offer and Be
Page 45 and 46:
At the Interview | Top Ten Mistakes
Page 47 and 48:
At the Interview | Frequently Asked
Page 49 and 50:
Interview Questions How This Book i
Page 52 and 53:
Part 1 Data Structures
Page 54 and 55:
Chapter 1 | Arrays and Strings 1 1
Page 56 and 57:
2 1 Write code to remove duplicates
Page 58 and 59:
Chapter 3 | Stacks and Queues 3 1 D
Page 60:
Chapter 4 | Trees and Graphs 4 1 Im
Page 63 and 64:
Chapter 5 | Bit Manipulation How to
Page 65 and 66:
Chapter 6 | Brain Teasers Do compan
Page 67 and 68:
Chapter 7 | Object Oriented Design
Page 69 and 70:
Chapter 8 | Recursion How to Recogn
Page 71 and 72:
Chapter 9 | Sorting and Searching H
Page 73 and 74:
Chapter 10 | Mathematical How to Ap
Page 75 and 76:
Chapter 11 | Testing Testing Proble
Page 77 and 78:
Chapter 12 | System Design and Memo
Page 80 and 81:
Part 3 Knowledge Based
Page 82 and 83:
Chapter 13 | C++ 13 1 Write a metho
Page 84 and 85:
Chapter 14 | Java 14 1 In terms of
Page 86 and 87:
Chapter 15 | Databases 15 1 Write a
Page 88 and 89:
Chapter 16 | Low Level 16 1 Explain
Page 90 and 91:
Chapter 17 | Networking 17 1 Explai
Page 92:
Chapter 18 | Threads and Locks 18 1
Page 95 and 96:
Chapter 19 | Moderate 19 1 Write a
Page 97 and 98:
Chapter 20 | Hard 20 1 Write a func
Page 99 and 100:
Each problem may have many 'optimal
Page 101 and 102:
Solutions to Chapter 1 | Arrays and
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109:
Page 112 and 113:
Solutions to Chapter 2 | Linked Lis
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Approach 2: Solutions to Chapter 3
Page 120 and 121:
Solutions to Chapter 3 | Stacks and
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 129 and 130:
Solutions to Chapter 4 | Trees and
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Solutions to Chapter 5 | Bit Manipu
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Solutions to Chapter 6 | Brain Teas
Page 151 and 152:
Page 153 and 154:
Page 155:
Page 158 and 159:
Solutions to Chapter 7 | Object Ori
Page 160 and 161:
Page 162 and 163:
Page 164 and 165:
Page 166 and 167:
41 } 42 } Overview: Solutions to Ch
Page 168 and 169:
Page 170 and 171:
Page 172 and 173:
Page 174 and 175:
Page 176 and 177:
Solutions to Chapter 8 | Recursion
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
Page 185 and 186:
Solutions to Chapter 9 | Sorting an
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Solutions to Chapter 10 | Mathemati
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204: Solutions to Chapter 11 | System De
Page 215 and 216: Solutions to Chapter 12 | Testing 1
Page 221 and 222: Solutions to Chapter 13 | C++ 13 1
Page 231 and 232: Solutions to Chapter 14 | Java 14 1
Page 237 and 238: Solutions to Chapter 15 | Databases
Page 243 and 244: Solutions to Chapter 16 | Low Level
Page 253: Solutions to Chapter 16 | Low Level
Page 257 and 258: Solutions to Chapter 17 | Networkin
Page 263 and 264: Solutions to Chapter 18 | Threads a
Page 271 and 272: Solutions to Chapter 19 | Moderate
Page 285 and 286: Solutions to Chapter 20 | Hard 20 1
Page 295 and 296: Solutions to Chapter 20 | Hard 20 p
Page 303 and 304: Solutions to Chapter 20 | Hard 32 m
Page 305:
Solutions to Chapter 20 | Hard 17 }
Page 308 and 309:
M matrixes 101, 102, 163, 169, 184,
Page 310:
About the Author Gayle Laakmann’s
show all

Cracking the Coding Interview - Fooo

Create successful ePaper yourself

Delete template?

Save as template?