16-17,HK2_IntroductionC(CLC)Mau 3

1 HCMC University of Technology and Education Faculty for High Quality Training ECET Final exam at the end of the semester 2, 2016-2017 Subject: Introduction to C programming language

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HCMC University of Technology and Education

Faculty for High Quality Training

ECET

Final exam at the end of the semester 2, 2016-2017 Subject: Introduction to C programming language Subject code: CPRL130064E

Number of pages: 06 pages Duration: 75 minutes

Used paper documents

Students work directly on the exam and submit all

Supervisor Signature 1 Supervisor Signature 2

Points and Signatures

The first marking

lecture

The second marking lecture First and last name:

Student ID: Order number: Room:

Question 1: (2.0 points) Give a following program, please perform:

b) Show results on the screen after performing the program?

# #include <stdio.h>

I t main(void)

{

int a = 12, b = 6, c = 17, d;

if ((a >= b) || (b<c))

{

a +=++ c;

b = a - c;

d = c%b;

}

else

{

b += c;

c = ++a - b;

d = (b + c) / a;

}

printf("a:%d\n", a);

printf("b:%d\n", b);

printf("c:%d\n", c);

printf("d:%d\n", d);

return 0;

}

a) a flowchart

b) Results on the screen

………

………

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Question 2: (2.0 points) Give a following program, please perform:

a) Show results on the screen after performing the program?

b) Write Pseudocode? c) Rewrite this program using “do…while”? #include <stdio.h> void main() { int i; for (i = 15; i>0; i)

printf("%d \t", i); } a) Results on the screen:

b) Pseudocode:

c) Rewrite using “do…while”:

Question 3: (1.0 points) What does the following program print?

#include<stdio.h>

int main (void)

{

unsigned int row = 4; // initialize row

unsigned int column; // define column

while (row >= 1) // loop until row < 1

{

column = 1; // set column to 1 as iteration begins while (column <= 10) // loop 10 times

{

if (row % 2 == 0)

printf("%s", "@"); // output else

break;

++column; // increment column

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} // end inner while row; // decrement row printf("\n"); // begin new output line } // end outer while

} // end function main

Question 4: (1.0 points) Show results on the screen after performing a following program: #include <stdio.h> void main() { int a[6] = { 1, 2, 3, 4, 5, 6}; int *p1 = &a[1]; int *p2 = &a[3]; *p1 = *p2 + 4; *(p1 - 1) = *p2 - 5; *(p2 + 1) = a[2] + a[3]; *(p2 + 2) = *(p1 - 1) + *p1; printf("%d %d %d %d", a[0], a[1], a[4], a[5]); }

Question 5: (2.0 points) Edit bugs of a following program:

The program

#include "stdafx.h"

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

void ArrayInput(int *a, int n);

void ArrayPrint(int *a, int n)

void ArraySquare(int *a, int *b, int n);

Edit bugs

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int main(void)

{

int n;

printf("\n Input element number of array: ");

scanf("%d", n);

int *a;

int *b;

a = (int *)malloc(n * sizeof(int));

b = &(int *)malloc(n * sizeof(int));

printf("\n Input values of the array\n");

ArrayInput(a, n);

printf("\n Solve square of the array\n");

ArraySquare(a, b, n);

ArrayPrint(a, n);

ArrayPrint(&b, n);

return 0;

}

void ArrayInput(int *a, int n)

{

for (int i = 0; i < n; i++)

{

printf("Input element %d of the array: ", i);

scanf("%d", &a + i);

}

}

void ArrayPrint(int *a, int n)

{

for (int i = 0; i < n; i++)

printf("%d \t", a + i);

printf("\n");

}

void ArraySquare(int *a, int *b, int n)

{

for (int i = 0; i <= n; i++)

{

*(b + i) = *(a + i) *(a + i);

}

}

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Question 6: (2 points) Write a complete program which executes functions as follows:

a) Create a structure type, named SensorNode, to describe a Sensor Node The Sensor Node will collect temperatures which are used to avoid forest fires, and includes information as follows:

 Node Code (named NodeID): integer format

 Node Name (named NodeName): string format

 Temperature value (named Temp): real number format

b) Enter information including Node Code, Node Name, and Temperature value of 10 different Sensor Nodes

c) Print out a Node Name which collects the highest temperature value

d) Print out the average temperature of these 10 Sensor Nodes

e) Indicates how many Sensor Nodes have temperatures greater than 38.5 Print all information of these Sensor Nodes on the screens

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Notation: Supervisor officials are not allowed to explain the exam questions

[ELO 1.3]: Demonstrate command syntax, operation and application of

branching and iteration structures in C language

Questions 1, 2, 3

[ELO 1.5]: Present how the pointer is declared and how to use the

pointer to retrieve the memory

Questions 4, 5

[ELO 1.7]: Define structure type and use structure variables to store and

manage data

Question 6

[ELO 2.1]: Analyze the programming requirements from which to build

a flowchart, a complete program

Questions 1, 2, 6

[ELO 3.1]: Apply control structures, apply data manipulation, build

support functions to design and solve application programming

requirements

Questions 2, 6

June 07th, 2017

Head of ECET