Question

A) Rewrite the following pseudocode segment in C++ using the loop structures (for and while). Assume that all the variables are declared and initialized. k-G+ 13)/27 loop: if k> 10 then goto out k=k+1 i=3"k-1 goto loop I out: B) Rewrite the following code segment in C++ using the multiple-selection (switch and if-else) statements. Assume that all the variables are declared and initialized. if((k 1) || (k 2))j-2 k-1 if ((k 3) || ( ks))j - 3.k+1 if (k 4)j-4k-1 if((k = 6) || (7)| (k -- 8))j - k-2 C) Rewrite the following C+ code segment without using the break statement. However, the new or rewritten code segment should operate as this original code segment. Assume that all the variables are declared and initialized. j= -3; for (i = 0; i<3; i++) { switch (+2) case 3: case 2: j-break; case 0:1 +=2; break; default: j = 0; } if (>0) break; j= 3 - i

Answer 1

A.cpp( for )

//including header files
#include<iostream>
using namespace std;

int main()
{
//   declaring j,k and i and initializing j with 50
   int j=50,k,i;
  
//   adding 13 in j and dividing 27 after that and assigning to k
   k=(j+13)/27;
  
//   infinite loop
   for(;;)
   {
//       if k is greater than 10 then jump to out label
       if(k>10)
       goto out;
      
//       adding 1 with k and assign it in k
       k = k+1;
//       multiplying 3 with k after that substract 1 with k and assign it in i
       i = 3 * k - 1;
   }
//   jump label
   out:
  
return 0;
}
A.cpp(while)

// including header files
#include<iostream>
using namespace std;

int main()
{
//   declaring j,k and i and initializing j with 50
   int j=50,k,i;
//   adding 13 in j and dividing after that and assigning to k
   k=(j+13)/27;
//   infinite loop
   while(1)
   {
//       if k greater than 10 then jump to out label
       if(k>10)
       goto out;

//       adding 1 with k and assign it in k
       k = k+1;
//       multiplying 3 with k after that substract 1 with k and assign it in i
       i = 3 * k - 1;
   }
//   jump label
   out:
  
return 0;
}
B.cpp(switch)

// including header files
#include<iostream>
using namespace std;

int main()
{
//   declaring k and j and initializing k with 1 and j with 0
   int k=1,j=0;
  
  
   switch(k){
      
//       if case 1 and case 2 matches then j = 2 * k - 1 and break;
       case 1:
       case 2:
           j = 2 * k - 1;
           break;
//       if case 3 and case 5 matches then j = 3 * k + 1 and break;
       case 3:
       case 5:
           j = 3 * k + 1;
           break;
//       if case 4 matches then j = 4 * k - 1 and break;
       case 4:
           j = 4 * k - 1;
           break;
//       if case 6, case 7 and case 8 matches then j = k - 2 and break;
       case 6:  
       case 7:
       case 8:
           j = k - 2;
           break;  
   }
  
return 0;
}

B.cpp(if-else)

// declaring header files
#include<iostream>
using namespace std;

int main()
{
//   declaring j, i and initializing j with -3 and i with 0
   int j = -3, i = 0;
  
//   loop until i less than 3
   for(i = 0; i<3; i++)
   {
       switch(j+2){
//       if case 3 and case 2 matches then j = j-- and jump to out label;  
           case 3:
           case 2:
               j--;
               goto out;
//       if case 0 matches then j=j+2 and jump to out label;  
           case 0:
               j+=2;
               goto out;
//           default j = 0
           default:
               j=0;  
       }
      
//       if j is greater than 2 then jump to goto label
       if(j>2)
           goto out;
//       substract i with 3 and assign it to j
       j = 3 - i;
   }
  
//   label
   out:
      
return 0;
}

C.cpp

// declaring header files
#include<iostream>
using namespace std;

int main()
{
//   declaring j, i and initializing j with -3 and i with 0
   int j = -3, i = 0;
  
//   loop until i less than 3
   for(i = 0; i<3; i++)
   {
       switch(j+2){
//       if case 3 and case 2 matches then j = j-- and jump to out label;  
           case 3:
           case 2:
               j--;
               goto out;
//       if case 0 matches then j=j+2 and jump to out label;  
           case 0:
               j+=2;
               goto out;
//           default j = 0
           default:
               j=0;  
       }
      
//       if j is greater than 2 then jump to goto label
       if(j>2)
           goto out;
//       substract i with 3 and assign it to j
       j = 3 - i;
   }
  
//   label
   out:
      
return 0;
}

Code output:

A.cpp(for)

D:\HomeworkLib\October 69\Afor.cpp - Dev-C++ 5.11 File Edit Search View Project Execute Tools AStyle Window Help Afor.cpp Bswitch.cpp A.cpp B.cpp C.cpp 1 //including header files 2 #include<iostream> 3 using namespace std; 4 5 int main() 6 = { 7 II declaring j, k and i and initializing j with 50 8 int j=50, k,i; 9 10 // adding 13 in j and dividing 27 after that and assigning to k 11 k=(j+13)/27; 12 13 // infinite Loop 14 for(;;) { 16 if k is greater than 10 then jump to out Label 17 if(k>10) 18 goto out; 19 20 adding 1 with k and assign it in k 21 k = k+1; 22 // multiplying 3 with k after that substract 1 with k and assign it in i 23 i = 3 * K - 1; 24 } 25 // jump Label 26 out: 27 28 return 0; 29 } 30 15 = ad Compiler Resources dh Compile Log → Debug Find Results Line: 30 Col 1 Sel: 0 Lines: 30 Length: 542 Insert Done parsing in 0 seconds

A.cpp(while)

х CcPP D:\HomeworkLib October 269\A.cpp - Dev-C++ 5.11 File Edit Search View Project Execute Tools AStyle Window Help Afor.cpp Bswitch.cpp A.cpp B.cpp 1 // including header files 2 #include<iostream> 3 using namespace std; 4 5 6 int main() 8 // declaring j, k and i and initializing j with 50 9 int j=50, k,i; 10 // adding 13 in j and dividing after that and assigning to k 11 k=(j+13)/27; 12 // infinite Loop 13 while(1) 14 = { 15 if k greater than 10 then jump to out label 16 if(k>10) 17 goto out; 18 19 adding 1 with k and assign it in k 20 k = k+1; 21 multiplying 3 with k after that substract 1 with k and assign it in i 22 i = 3 * K - 1; 23 } 24 // jump Label 25 out: 26 27 return 0; 28 } 29 ad Compiler Resources dh Compile Log → Debug Find Results Col: 10 Sel: 0 Lines: 29 Length: 533 Line: 27 Insert Done parsing in 0 seconds

B.cpp(swtich)

х D:\HomeworkLib\October (69\Bswitch.cpp - Dev-C++ 5.11 File Edit Search View Project Execute Tools Style Window Help Afor.cpp [*] Bswitch.cpp A.cpp B.cpp C.cpp 1 // including header files 2 #include<iostream> 3 using namespace std; 4. int main() 5= { 6 // declaring k and j and initializing k with 1 and j with @ 7 int k=1,j=0; 8 switch() { 9 // if case 1 and case 2 matches then j = 2 * k - 1 and break; 10 case 1: 11 case 2: 12 j = 2 * k - 1; 13 break; 14 if case 3 and case 5 matches then j = 3* k + 1 and break; 15 case 3: 16 case 5: 17 j = 3 * k + 1; 18 break; 19 if case 4 matches then j = 4 * k - 1 and break; 20 case 4: 21 j = 4 * K - 1; 22 break; 23 Il if case 6, case 7 and case 8 matches then j = k - 2 and break; 24 case 6: 25 case 7: 26 case 8: 27 j = k - 2; 28 break; 29 30 return 0; 31 ad Compiler Resources oh Compile Log ✓ Debug Find Results Line: Col: Sel: 0 Lines: 32 Length: 648 Insert Done parsing in 0 seconds 8 15

B.cpp(if-else)

х D:\HomeworkLib\October 269\B.cpp - Dev-C++ 5.11 File Edit Search View Project Execute Tools AStyle Window Help Afor.cpp Bswitch.cpp A.cpp B.cpp Ccpp 1 // including header files 2 #include<iostream> 3 using namespace std; 4 5 int main() 6 = { 7 / declaring k, j and initializing k = 1 and j = 0 8 int k=1, j=0; 9 // if k equal to 1 or k equal to 2 then j = 2 * k - 1 10 if(k==1 || k==2) 11 j = 2 * k - 1; 12 // if k equal to 3 or k equal to 5 then j = 3 * k + 1 13 else if(k==3 || k == 5) 14 j = 3 * k + 1; 15 // if k equal to 4 then j = 4 * k - 1 16 else if(k==4) 17 j = 4 * k - 1; 18 // if k equal to 6 or k equal to 7 or k equal to 8 then j = k - 19 else if(k==6 || k==7 || k==8) 20 j = k - 2; 21 return 0; 22 } 23 H8 Compiler Resources oh Compile Log Debug Find Results Line: 18 Col: Sel: 0 Lines: 23 Length: 553 67 Insert Done parsing in 0 seconds

C.cpp

х D:\HomeworkLib\October 269\C.cpp - Dev-C++ 5.11 File Edit Search View Project Execute Tools AStyle Window Help Afor.cpp Bswitch.cpp A.cpp B.cpp C.cpp 1 // declaring header files 2 #include<iostream> 3 using namespace std; 4 5 int main() 6 = { 7 / declaring j, i and initializing j with -3 and i with a 8 int j = -3, i = 0; 9 10 // Loop until i less than 3 11 for(i = 0; i<3; i++) 12 = { 13 = switch(j+2) { 14 // if case 3 and case 2 matches then j = j-- and jump to out label; 15 case 3: 16 case 2: 17 j--; 18 goto out; 19 if case 0 matches then j=j+2 and jump to out Label; 20 case 0: 21 j+=2; 22 goto out; 23 // default j = 0 24 default: 25 j=0; 26 } 27 28 // if j is greater than 2 then jump to goto Label 29 if(j>2) 30 goto out; 31. suhstract i with 3 and assion it to i ad Compiler Resources oh Compile Log ✓ Debug Find Results Line: 34 Col Sel: 0 Lines: 40 Length: 689 Insert Done parsing in 0 seconds 5

Х j--; D:\HomeworkLib\October 269\C.cpp - Dev-C++ 5.11 File Edit Search View Project Execute Tools AStyle Window Help Afor.cpp Bswitch.cpp A.cpp B.cpp C.cpp 11 for(i = 0; i<3; i++) 12 = { 13 = switch(j+2) { 14 if case 3 and case 2 matches then j = j -- and jump to out Label; 15 case 3: 16 case 2: 17 18 goto out; 19 // if case o matches then j=j+2 and jump to out Label; 20 case 0: 21 j+=2; 22 goto out; 23 / default j 24 default: 25 j=0; 26 } 27 28 if j is greater than 2 then jump to goto Label 29 if(j>2) 30 goto out; 31 substract i with 3 and assign it to j 32 j = 3 - i; 33 34. 35 // Label 36 out: 37 38 return 0; 39 } 40 88 Compiler Resources dh Compile Log Debug . Find Results Line: 34 Col: 5 Sel: 0 Lines: 40 Length: 689 Insert Done parsing in 0 seconds