c++

Name:

KCST ID:

CE-100 Introduction to Computer Systems

Tutorial 5 - Decision Structures (Nested decision structures, Logical operators)

OBJECTIVES: 1. Learn how to use nested decision structures in C++ programs 2. Learn the if-else-if ladder structure, in particular. 3. Understand the Boolean operators and their use in Boolean expressions. RULES:  Hand write your answers, both flowchart and code, on a separate sheet of paper.

 it is recommended to use pencil for drawing flowcharts. Assignment Problems: Draw the flowchart and write C++ code to solve the following problems (Q1, Q2)

Q1. Input a KCST ID (10 digits). Based on its first 2 digits, display the following message: First 2 digits of ID Message to print

16 You enrolled in 2016

17 You enrolled in 2017

18 You enrolled in 2018

19 You enrolled in 2019

otherwise Invalid ID Hint: a regular C++ int is large enough to fit any valid KCST ID.

Q2. Input three integer numbers. Print the smallest one. If two or more numbers are equal,

print: “some are equal”

Q3. What is the output of this program?

#include <iostream> using namespace std; int main() {

int a, b, c; a = 9; b = 5; c = 2;

if (a < b)

if (a < c) cout << a;

else cout << c;

else if (b < c)

cout << b; else

cout << c;

return 0; }