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CPT111 Principles of ProgrammingSemester 1 , Academics Session
2012/2013Assignment 21
Course:CPT111 Principles of Programming
School:School of Computer Science
Name: Nur Izzati Zafirah
Group:C
Question 1
Specification requirement
1. First find 2 random number and display arithmetic calculation type.
2. Ask user to choose type of calculation.
3. The calculation will be process.
Problem analysis
Input Process Output Test data
User need to input
calculation type
The process involved in this
stage is the selection of
switch condition case.
And then the calculation will
be perform.
div= max / num
mul=num1*num2
sub=num1-num2
add = num1+num2
The output that will
appear on the screen is
the addition,
calculation ,
subtraction or
division.
Input = 1
Output= 60
.
Pseudo code
start
2 random number will be generate.
Display choice of arithmetic calculation
Case 1 : AdditionCase 2 : SubtractionCase 3 : MultiplicationCase 4 : Division
Switch (case)
Case 1 : Addition = a + b
Case 2 : Subtraction = a - b
Case 3 : Multiplication = a * b
Case 4 : Division = a/b Remainder = a%b or b%a
Print the total calculationEnd
start
Flowchart
Source code
Add= num1 + num2
end
Case 1
Read type calculation
Print addition
You enter wrong number
True
false
Case 2
Case 3
Case 4
Subtraction= num 1 – num2
Multiplication= num1 x num2
Division = num1 ÷ num 2
Print subtraction
Print Multiplication
Print Division
false
false
false
True
True
True
Random number generate
#include <cstdlib>#include <ctime>#include <iostream>using namespace std;int biggest(int x,int y);int lowest(int x,int y) ;
int main(){ srand((unsigned)time(0)); int num1 , num2 ; { num1 = (rand()%99)+1;
num2 = (rand()%99)+1; cout <<"2 random number = "<< num1 <<" & "<< num2<< endl; }
int type , add , sub , mul , div , max , x , y , num , remainder ; cout<<"please choose your calculation type"<<endl ;
cout<<"1 : Addition"<<endl ;cout<<"2 : Subtraction"<<endl ;
cout<<"3 : Multiplication"<<endl ; cout<<"4 : Division"<<endl ; cin>>type ;
switch(type){case 1 :cout<<"addition"<<endl ;
add = num1+num2 ;cout<<num1<<"+"<<num2<<"="<<add<<endl ;break ;
case 2 :cout<<"Subraction"<<endl ; sub=num1-num2 ;
cout<<num1<<"-"<<num2<<"="<<sub<<endl ;break ;
case 3 :cout<<"multiplication"<<endl ;mul=num1*num2 ;cout<<num1<<"*"<<num2<<"="<<mul<<endl ;break ;
case 4 :cout<<"division"<<endl ; x=num1 ; y=num2 ;
max=biggest( x ,y);
num=lowest (x , y);div= max / num ;remainder = max%num ;cout<<max<<"/"<<num<<"="<<"\nquotient ="<<div<<"\nremainder
="<<remainder<<endl ;break ;
default : cout<<"you enter wrong number"<<endl ;} return 0;}int biggest(int x,int y){ if(x>=y)
return x;else
return y;;}
int lowest(int x,int y){ if(x<=y)
return x;else
return y;;}
Print screen of output
The input = 1 ,Output= 41 , 19 , 60
The input = 2 output = 3,12 ,9
The input = 3 , output = 21 , 89 and 1869
The input = 4 output = 66 , 89 , 1 , 23
The input = 0 output = 96 , 32, wrong number
Question 2(a)#include<iostream>#include<cmath>using namespace std;int main(){int i;int x_sqr[100];double x_sqr_rt[100];for(i=0;i<=100;i++){x_sqr[i]=i*i;cout<<"x_sqr[i]"<<x_sqr[i]<<endl;}for (i=0;i<=100;i++){x_sqr_rt[i]=sqrt(i);cout<<"x_sqr_rt[i]"<<x_sqr_rt[i]<<endl;cout<<"thats all"<<endl;}return 0;}
Question 2(b)#include <iostream>#include <cmath>using namespace std;
const int inputSIZE = 17;void print(int *input){ for ( int i = 0; i < inputSIZE; i++ )
cout << input[i] << " "; cout << endl;}void merge(int* input, int p, int r){ int mid = floor((p + r) / 2); int i1 = 0; int i2 = p; int i3 = mid + 1; int temp[r-p+1]; while ( i2 <= mid && i3 <= r ) if ( input[i2] < input[i3] ) temp[i1++] = input[i2++]; else temp[i1++] = input[i3++]; while ( i2 <= mid ) temp[i1++] = input[i2++]; while ( i3 <= r ) temp[i1++] = input[i3++];
for ( int i = p; i <= r; i++ ) input[i] = temp[i-p];
}
void merge_sort(int* input, int p, int r){if ( p < r ) { int mid = floor((p + r) / 2); merge_sort(input, p, mid); merge_sort(input, mid + 1, r); merge(input, p, r); }}
int main(){ cout<<"a_array= {10, 2, 4, 6, 8, 10, 12, 37, 45, 68, 89}"<<endl; cout<<"b_array= {5, 1, 3, 14, 50, 150}"<<endl; int input[inputSIZE] = {10, 2, 4, 6, 8, 10, 12, 37, 45, 68, 89,5, 1, 3, 14, 50, 150}; cout << "Input: ";
print(input); merge_sort(input, 0, 16); cout << "Output: "; print(input); return 0;
Question 2(c) [i]#include <iostream>#include <conio.h>#include <cmath>#include <fstream>
using namespace std;int compress (string fileName, string newFileName){
ifstream readfile;readfile.open (fileName.c_str());
if (readfile.fail()){
cout<<"Error Opening.";return 1;
}
ofstream outputfile;outputfile.open(newFileName.c_str());
if (outputfile.fail()){
cout<<"Error Opening.";return 1;
}
char x;int i = 0;readfile.get(x);while (!readfile.eof()){
if (x == ' '){
i++;readfile.get(x);continue;
}else if ( i == 0 )
;else if ( i >= 4 ){
outputfile<<"$"<<i<<"$";i = 0;continue;
}else
{for (i; i > 0; i--){
outputfile<<' ';}i=0;
}outputfile<<x;readfile.get(x);
}
readfile.close();outputfile.close();
return 0;}int expand (string openFile, string writeFile){
ifstream readfile2;readfile2.open(openFile.c_str());
if (readfile2.fail()){
cout<<"Error Opening.";return 1;
}
ofstream output2;output2.open (writeFile.c_str());
if (output2.fail()){
cout<<"Error Opening.";return 1;
}
char x;int i = 0;readfile2.get(x);while (!readfile2.eof()){
if ( x == '$')readfile2.get(x);
else{
output2<<x;readfile2.get(x);continue;
}if ( x == '$' ){
output2<<'$';continue;
}else if ( (x == '1') | (x == '2') | (x == '3') | (x == '4') | (x == '5') | (x == '6') | (x == '7') | (x ==
'8') | (x == '9') | (x == '0')){
char numx[5];int i = -1, j = 0;while ( (x == '1') | (x == '2') | (x == '3') | (x == '4') | (x == '5') | (x == '6') | (x == '7')
| (x == '8') | (x == '9') | (x == '0')){
i++;numx[i] = x;readfile2.get(x);
}if ( x != '$'){
output2<<'$';for (j = 0; j <= i; j++){
output2<<numx[j];}output2<<x;
}else{
j = i;int y = 0;for ( i; i >= 0; i--){
numx[i] -= '0';static_cast <int> (numx[i]);y += numx[i] * pow ( 10, (j-i));
}for ( y; y >0; y--){
output2<<' ';}readfile2.get(x);
}}else{
output2<<'$'<<x;readfile2.get(x);
}}return 0;
}
int main (){
string fileName, newFileName, newFileName2;int compressFlag, expandFlag, reproduce;cout<<"Enter the name of the file you would like to edit: ";cin>>fileName;cout<<"Enter the name of the new file for the edited file: ";cin>>newFileName;compressFlag = compress (fileName, newFileName);if ( compressFlag == 0)
cout<<"The file have been successfully edited."<<endl;else
cout<<"The file have not edited."<<endl;
cout<<"Do you want to convert the file to reproduce the original file?";cin>>reproduce;if ( reproduce == 1){
cout<<"Enter the name of the new file: ";cin>>newFileName2;expandFlag = expand ( newFileName, newFileName2);if ( expandFlag == 0)
cout<<"The file have been successfully edited.";else
cout<<"The file have not edited.";}return 0;
}Question 2(c) [ii]#include <iostream>#include <conio.h>#include <cmath>#include <fstream>
using namespace std;int compress (string fileName, string newFileName){
ifstream readfile;readfile.open (fileName.c_str());
if (readfile.fail()){
cout<<"Error Opening.";return 1;
}
ofstream outputfile;outputfile.open(newFileName.c_str());
if (outputfile.fail()){
cout<<"Error Opening.";return 1;
}
char x;int i = 0;readfile.get(x);while (!readfile.eof()){
if (x == ' '){
i++;readfile.get(x);continue;
}else if ( i == 0 )
;else if ( i >= 4 ){
outputfile<<"$"<<i<<"$";i = 0;continue;
}else{
for (i; i > 0; i--){
outputfile<<' ';}i=0;
}outputfile<<x;readfile.get(x);
}
readfile.close();outputfile.close();
return 0;
}int expand (string openFile, string writeFile){
ifstream readfile2;readfile2.open(openFile.c_str());
if (readfile2.fail()){
cout<<"Error Opening.";return 1;
}
ofstream output2;output2.open (writeFile.c_str());
if (output2.fail()){
cout<<"Error Opening.";return 1;
}
char x;int i = 0;readfile2.get(x);while (!readfile2.eof()){
if ( x == '$')readfile2.get(x);
else{
output2<<x;readfile2.get(x);continue;
}if ( x == '$' ){
output2<<'$';continue;
}else if ( (x == '1') | (x == '2') | (x == '3') | (x == '4') | (x == '5') | (x == '6') | (x == '7') | (x ==
'8') | (x == '9') | (x == '0')){
char numx[5];int i = -1, j = 0;while ( (x == '1') | (x == '2') | (x == '3') | (x == '4') | (x == '5') | (x == '6') | (x == '7')
| (x == '8') | (x == '9') | (x == '0')){
i++;
numx[i] = x;readfile2.get(x);
}if ( x != '$'){
output2<<'$';for (j = 0; j <= i; j++){
output2<<numx[j];}output2<<x;
}else{
j = i;int y = 0;for ( i; i >= 0; i--){
numx[i] -= '0';static_cast <int> (numx[i]);y += numx[i] * pow ( 10, (j-i));
}for ( y; y >0; y--){
output2<<' ';}readfile2.get(x);
}}else{
output2<<'$'<<x;readfile2.get(x);
}}return 0;
}
int main (){
string fileName, newFileName, newFileName2;int compressFlag, expandFlag, reproduce;cout<<"Enter the name of the file you would like to edit: ";cin>>fileName;cout<<"Enter the name of the new file for the edited file: ";cin>>newFileName;compressFlag = compress (fileName, newFileName);if ( compressFlag == 0)
cout<<"The file have been successfully edited."<<endl;else
cout<<"The file have not edited."<<endl;
cout<<"Do you want to convert the file to reproduce the original file?";cin>>reproduce;if ( reproduce == 1){
cout<<"Enter the name of the new file: ";cin>>newFileName2;expandFlag = expand ( newFileName, newFileName2);if ( expandFlag == 0)
cout<<"The file have been successfully edited.";else
cout<<"The file have not edited.";}return 0;
}
