Sorting & Selection EECS 3101 Prof. Andy Mirzaian Sorting & Selection STUDY MATERIAL: [CLRS] chapters 6, 7, 8, 9 Lecture Notes 5, 6 2 TOPICS The Sorting Problem Some general facts QuickSort HeapSort, Heaps, Priority Queues Sorting Lower Bound Special Purpose Sorting Algorithms The Selection Problem Lower Bound Techniques Prune-&-Search 3 The Sorting Problem INPUT: […]
PowerPoint Presentation CSE 2421 The C Language – Part 4, Control Structures Required Reading: Pointers on C, Chapter 4 (skim is likely good enough), Section 5.1.9 1 Loop constructs in C for loops while loops do while loops break and continue Conditional statements in C if switch-case Boolean issues The comma operator Enumerated data types
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Introduction to Computer Systems 15-213/18-243, spring 2009 CSE 2421 Linking and Relocation Required Reading: Computer Systems: A Programmer’s Perspective, 3rd Edition Chapter 7 through 7.6.3 (inclusive) 2 Reminder – C Compilation Workflow Option 1: Complete all stages of compilation %gcc –o hello hello.c Option 2: Complete 1st three phases first: – Preprocessor: .c to .i
Comma splices Intro to C CSE 2421 1 C is procedural, not object-oriented C is fully compiled (to machine code), not to byte-code C allows direct manipulation of memory (via pointers) C does not have garbage collection; the software writer has to do explicit memory management when it is required, and failure to do so
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ALU Instructions MIPS Arithmetic and Logic Instructions COE 301 Computer Organization Prof. Muhamed Mudawar College of Computer Sciences and Engineering King Fahd University of Petroleum and Minerals MIPS Instruction Set Architecture COE 301 – Computer Organization – KFUPM © Muhamed Mudawar – slide ‹#› Presentation Outline Overview of the MIPS Architecture R-Type Instruction Format R-type
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PowerPoint Presentation CSE 2421 The C Language – Part 3 – I/O Required Reading: Pointers on C, Section 15.8, 15.8.1,15.10 through 15.10.4 inclusive Linux/Unix systems use the ASCII character encoding format Most IBM products use the EBCDIC character encoding format There is also a character encoding format called Unicode For this class we will only
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Scheme – Friend or Foe? Scheme – Friend or Foe? Recursion A recursive function calls itself. It’s “that easy”. The “tricks” to recursion: Deciding how/when to use it Stopping it from getting out of control Debugging… Let’s look at an example… You remember from basic math that multiplication is repeated adding? 5 * 3 =
CSCE-312 Day 1 Introduction L20 – Building an Assembler Program Translation Process 2 Machine Language Courtesy: nand2tetris.org if ((x+width)>511) { let x=511-width; } High Level Language code Compiler 2 Assembly process 0000000000010000 1110111111001000 0000000000010001 1110101010001000 0000000000010000 1111110000010000 0000000000000000 1111010011010000 0000000000010010 1110001100000001 0000000000010000 1111110000010000 0000000000010001 … Machine Language assembler @i M=1 // i = 1 @sum
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Memory Allocation III CSE 351 Autumn 2016 Review of Last Lecture Implementing controller for your datapath Take decoded signals from instruction and generate control signals Pipelining improves performance by exploiting Instruction Level Parallelism 5-stage pipeline for RISC-V: IF, ID, EX, MEM, WB Executes multiple instructions in parallel Each instruction has the same latency What can
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Memory Allocation III CSE 351 Autumn 2016 Roadmap 1 car *c = malloc(sizeof(car)); c->miles = 100; c->gals = 17; float mpg = get_mpg(c); free(c); Car c = new Car(); c.setMiles(100); c.setGals(17); float mpg = c.getMPG(); Java: C: Assembly language: Machine code: 0111010000011000 100011010000010000000010 1000100111000010 110000011111101000011111 Computer system: OS: Memory & data Arrays & structs Integers