'Print sum' presentation slideshows

The Cache-Coherence Problem

The Cache-Coherence Problem. Chapter 7. Cache. Cache. Cache. Example 1: The Cache-Coherence Problem. sum = 0; begin parallel for (i=0; i<2; i++) { lock(id, myLock); sum = sum + a[i]; unlock(id, myLock); end parallel print sum; Suppose a[0] = 3 and a[1] = 7. P 1. P 2.

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CompSci 101 Introduction to Computer Science

CompSci 101 Introduction to Computer Science. score = [10,8,10,9]. Sep 21, 2017 Prof. Rodger. Announcements. Reading and RQ8 due next time Assignment 3 due tonight Assignment 4 out, due Oct. 3 APT 3 is due on Tuesday APT Quiz 1 take Sunday-Wednesday 11:59pm practice APT quiz available

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Writing algorithms using the for-statement

Writing algorithms using the for-statement. Programming example 1: find all divisors of a number. We have seen a program using a while-statement to solve this problem. Here, we will see that this problem can be solved more naturally using a for -statement.

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CompSci 101 Introduction to Computer Science

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Introduction to Algorithms

Introduction to Algorithms. Yonglei Tao. What is an Algorithm?. A step-by-step description about a solution to a problem Unambiguous In a logical order Executable A program is the expression of an algorithm in a programming language. Examples of Algorithm. Making a phone call

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CompSci 101 Introduction to Computer Science

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Basic Control Structures

Basic Control Structures. Sequence Selection Repetition. Sequence. A process executed from one to another in a straightforward manner. Start. Read N. Print N. End. Example of Sequence. Design a flowchart that will accept and display a number. Write its equivalent algorithms.

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Lecture 6: Parameterized Functions

Lecture 6: Parameterized Functions. CS 51P September 23, 2019. Why? There's some useful operation that you want to do over and over and over Easier to read/understand Easier to modify/change/debug How?. Review: Defining Functions. def sum_squares ():

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CompSci 6 Introduction to Computer Science

CompSci 6 Introduction to Computer Science. September 13, 2011 Prof. Rodger. Announcements. Read for next time Chapter 4 (pages 55-61) (note: we will work with images a different way) Chapter 5 Assignment 2 out - APTs Reading Quiz on Blackboard Due before class next time.

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???? Lab 10

???? Lab 10. Loop. ???????????????????????? Min, Max, Sum, Average ??? N ????? ???????????????????????????????????. Start. Read N. No. N>0. Print No Data. Yes. Read Score. Min = Score Max = Score Sum = Score Count = 1. No. Count<=N. Average = Sum / N. Yes. Print Min

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sed and awk

sed and awk. Henning Schulzrinne Dept. of Computer Science Columbia University. sed: string replacement. Line-oriented tool for pattern matching and replacement (stream editor) Not really a programming language (cf. awk) E.g., apply same change to lots of source files

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