Difference between revisions of "TriForce"

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(Assignment 1: EasyBMP)
(Assignment 1: EasyBMP)
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Revision as of 10:29, 8 March 2019


GPU610/DPS915 | Student List | Group and Project Index | Student Resources | Glossary

TriForce

Team Members

  1. David Ferri, Some responsibility
  2. Vincent Terpstra, Some other responsibility
  3. Raymond Kiguru, Responsibility++

Email All

Progress

Assignment 1: Sudoku Solver

Sudoku Solver Profiling

Source code from: https://www.geeksforgeeks.org/sudoku-backtracking-7/

Original Code:

// A Backtracking program  in C++ to solve Sudoku problem 
#include <stdio.h> 
 
// UNASSIGNED is used for empty cells in sudoku grid 
#define UNASSIGNED 0 
 
// N is used for the size of Sudoku grid. Size will be NxN 
#define N 9 
 
// This function finds an entry in grid that is still unassigned 
bool FindUnassignedLocation(int grid[N][N], int &row, int &col); 
 
// Checks whether it will be legal to assign num to the given row, col 
bool isSafe(int grid[N][N], int row, int col, int num); 
 
/* Takes a partially filled-in grid and attempts to assign values to 
  all unassigned locations in such a way to meet the requirements 
  for Sudoku solution (non-duplication across rows, columns, and boxes) */
bool SolveSudoku(int grid[N][N]) 
{ 
   int row, col; 
 
   // If there is no unassigned location, we are done 
   if (!FindUnassignedLocation(grid, row, col)) 
      return true; // success! 
 
   // consider digits 1 to 9 
   for (int num = 1; num <= 9; num++) 
   { 
       // if looks promising 
       if (isSafe(grid, row, col, num)) 
       { 
           // make tentative assignment 
           grid[row][col] = num; 
 
           // return, if success, yay! 
           if (SolveSudoku(grid)) 
               return true; 
 
           // failure, unmake & try again 
           grid[row][col] = UNASSIGNED; 
       } 
   } 
   return false; // this triggers backtracking 
} 
 
/* Searches the grid to find an entry that is still unassigned. If 
   found, the reference parameters row, col will be set the location 
   that is unassigned, and true is returned. If no unassigned entries 
   remain, false is returned. */
bool FindUnassignedLocation(int grid[N][N], int &row, int &col) 
{ 
   for (row = 0; row < N; row++) 
       for (col = 0; col < N; col++) 
           if (grid[row][col] == UNASSIGNED) 
               return true; 
   return false; 
} 
 
/* Returns a boolean which indicates whether an assigned entry 
  in the specified row matches the given number. */
bool UsedInRow(int grid[N][N], int row, int num) 
{ 
   for (int col = 0; col < N; col++) 
       if (grid[row][col] == num) 
           return true; 
   return false; 
} 
 
/* Returns a boolean which indicates whether an assigned entry 
  in the specified column matches the given number. */
bool UsedInCol(int grid[N][N], int col, int num) 
{ 
   for (int row = 0; row < N; row++) 
       if (grid[row][col] == num) 
           return true; 
   return false; 
} 
 
/* Returns a boolean which indicates whether an assigned entry 
  within the specified 3x3 box matches the given number. */
bool UsedInBox(int grid[N][N], int boxStartRow, int boxStartCol, int num) 
{ 
   for (int row = 0; row < 3; row++) 
       for (int col = 0; col < 3; col++) 
           if (grid[row+boxStartRow][col+boxStartCol] == num) 
               return true; 
   return false; 
} 
 
/* Returns a boolean which indicates whether it will be legal to assign 
  num to the given row,col location. */
bool isSafe(int grid[N][N], int row, int col, int num) 
{ 
   /* Check if 'num' is not already placed in current row, 
      current column and current 3x3 box */
   return !UsedInRow(grid, row, num) && 
          !UsedInCol(grid, col, num) && 
          !UsedInBox(grid, row - row%3 , col - col%3, num)&& 
           grid[row][col]==UNASSIGNED; 
} 
 
/* A utility function to print grid  */
void printGrid(int grid[N][N]) 
{ 
   for (int row = 0; row < N; row++) 
   { 
      for (int col = 0; col < N; col++) 
            printf("%2d", grid[row][col]); 
       printf("\n"); 
   } 
} 
 
/* Driver Program to test above functions */
int main() 
{ 
   // 0 means unassigned cells 
   int grid[N][N] = {{3, 0, 6, 5, 0, 8, 4, 0, 0}, 
                     {5, 2, 0, 0, 0, 0, 0, 0, 0}, 
                     {0, 8, 7, 0, 0, 0, 0, 3, 1}, 
                     {0, 0, 3, 0, 1, 0, 0, 8, 0}, 
                     {9, 0, 0, 8, 6, 3, 0, 0, 5}, 
                     {0, 5, 0, 0, 9, 0, 6, 0, 0}, 
                     {1, 3, 0, 0, 0, 0, 2, 5, 0}, 
                     {0, 0, 0, 0, 0, 0, 0, 7, 4}, 
                     {0, 0, 5, 2, 0, 6, 3, 0, 0}}; 
   if (SolveSudoku(grid) == true) 
         printGrid(grid); 
   else
        printf("No solution exists"); 
 
   return 0; 
} 


$ g++ sudokuC.cpp  -std=c++0x -o Sudoku
$ ./Sudoku
3 1 6 5 7 8 4 9 2
5 2 9 1 3 4 7 6 8
4 8 7 6 2 9 5 3 1
2 6 3 4 1 5 9 8 7
9 7 4 8 6 3 1 2 5
8 5 1 7 9 2 6 4 3
1 3 8 9 4 7 2 5 6
6 9 2 3 5 1 8 7 4
7 4 5 2 8 6 3 1 9
$ gprof -p -b ./Sudoku gmon.out > 9x9.flt

16x16 Puzzle:

   int grid[N][N] = {{0,  8,   0,  0,  0,  0,  0,  3,  0,  0,  0, 10,  9,  7, 11, 0}, 
                     {0,  9,  15, 13,  0, 10,  0,  0,  2,  6,  8, 16,  0,  0,  0, 0}, 				  
                     {0,  0,  16,  0, 15,  0,  8,  0,  9,  0,  0,  0,  6,  0,  2, 0}, 				  
                     {1,  0,   2,  0,  9, 11,  4,  6, 15,  3,  5,  7,  0,  0, 12, 0}, 					  
                     {16, 6,   4,  0,  5,  2,  0,  0,  1,  0,  0,  0, 11,  0,  0, 12},						  
                     {5,  11,  0,  0,  0,  3,  0, 15,  0, 16,  0, 13,  0,  1,  0, 8}, 					  
                     {0,  0,   3,  0,  0,  6, 11, 14,  0,  5,  7,  0,  0,  9,  0, 0}, 				  
                     {0,  0,   0, 14,  8,  0, 10,  0,  0, 11, 12,  0,  0,  0,  0, 0},				  
                     {0,  7,  13,  0,  0,  0,  0, 12,  0,  8,  9,  0,  0,  0,  3, 0},				  
		      {0,  0,  11,  9,  0,  7,  0,  0,  0,  0,  0, 12,  0,  8, 16, 5},
		      {0,  0,  10,  0, 11, 13,  0,  0,  0,  0,  0,  3, 12,  0,  6, 0},				  
		      {0,  5,   0,  0, 10, 15,  0,  1,  7,  2,  0,  0, 14, 11,  0, 0},				  
		      {0,  0,   5,  0,  0, 12, 14,  0,  0, 10,  0,  0, 15,  0,  0, 4},					  
		      {9,  0,  14,  6,  0,  0,  1,  0, 16,  0,  2,  0,  3,  0, 13, 0},					  
		      {8,  13,  0,  4,  0,  0,  0,  0, 12,  7,  3,  0,  0,  6,  0, 0},				  
		      {0,  16, 12,  0,  0,  5,  0,  9,  0, 13, 14,  4,  1,  0,  0, 0}}; 

25x25 Puzzle:

   int grid[N][N] = {{1,  0,   4,  0, 25,  0, 19,  0,  0,  10,  21, 8,  0,  14, 0,  6,  12,   9,  0,  0,  0,  0,  0,  0,  5}, 
                     {5,  0,  19, 23, 24,  0, 22,  12,  0,  0,  16, 6,  0,  20,  0,  18,  0,   25,  14,  13,  10, 11,  0,  1,  15}, 
                     {0,  0,   0,  0,  0,  0,  21,  5,  0,  20,  11,  10,  0,  1,  0,  4,  8,   24,  23,  15,  18,  0,  16,  22,  19},				  
                     {0,  7,  21,  8, 18,  0,  0,  0, 11,  0,  5,  0,  0,  24, 0,  0,  0,   17,  22,  1,  9,  6,  25,  0,  0}, 					  
                     {0, 13,  15,  0, 22, 14,  0,  18,  0,  16,  0,  0, 0,  4,  0,  0,  0,   19,  0,  0,  0,  24,  20,  21,  17},				  
                     {12, 0,  11,  0,  6,  0,  0, 0,  0, 15,  0, 0,  0,  0,  21,  25,  19,   0,  4,  0,  22,  14,  0,  20,  0},				  
                     {8,  0,   0, 21,  0, 16, 0, 0,  0,  2,  0,  3,  0,  0,  0,  0,  17,   23,  18,  22,  0,  0,  0,  24,  6},  
                     {4,  0,  14, 18,  7,  9, 0,  22,  21, 19, 0,  0,  0,  2,  0,  5,  0,   0,  0,  6,  16,  15,  0,  11,  12},				  
                     {22, 0,  24,  0, 23,  0,  0, 11,  0,  7,  0,  0,  4,  0,  14,  0,  2,   12,  0,  8,  5,  19,  0,  25,  9},
		      {20, 0,   0,  0,  5,  0,  0,  0,  0,  17,  9, 0,  12,  18, 0,  1,  0,   0,  7,  24,  0,  0,  0,  13,  4},					  
		      {13, 0,   0,  5,  0,  2,  23,  14,  4,  18,  22,  0, 17,  0,  0,  20,  0,   1,  9,  21,  12,  0,  0,  8,  11},					  
		      {14, 23,  0, 24,  0,  0,  0,  0,  0,  0,  0,  0, 20, 25,  0,  3,  4,   13,  0,  11,  21,  9,  5,  18,  22},			  
		      {7,  0,   0, 11, 17, 20, 24,  0,  0, 0,  3,  4, 1,  12,  0,  0,  6,   14,  0,  5,  25,  13,  0,  0,  0},	  
		      {0,  0,  16,  9,  0, 17,  11,  7, 10,  25,  0,  0,  0,  13, 6,  0,  0,   18,  0,  0,  19,  4,  0,  0,  20},  
		      {6,  15,  0, 19,  4, 13,  0,  0, 5,  0,  18,  11,  0,  0,  9,  8,  22,   16,  25,  10,  7,  0,  0,  0,  0},  
                     {0,  0,   0,  2,  0,  0, 10, 19,  3,  0,  1,  0,  22,  9,  4,  11,  15,   0,  20,  0,  0,  8,  23,  0,  25}, 				       
		      {0,  24,  8, 13,  1,  0, 0,  4,  20, 0, 17,  14,  0,  0,  18,  0,  16,   22,  5,  0,  11,  0,  10,  0,  0}, 
                     {23, 10,  0,  0,  0,  0,  0, 0,  18,  0,  6,  0,  16,  0,  0,  17,  1,   0,  13,  0,  0,  3,  19,  12,  0}, 
		      {25,  5,  0, 14, 11,  0,  17,  0,  8,  24,  13, 0,  19,  23, 15,  9,  0,   0,  12,  0,  20,  0,  22,  0,  7},					  
		      {0,   0, 17,  4,  0, 22,  15,  0,  23,  11,  12,  25, 0,  0,  0,  0,  18,   8,  0,  7,  0,  0,  14,  0,  13},				  
		      {19,  6, 23, 22,  8,  0,  0,  1,  25,  4,  14,  2, 0, 3,  7,  13,  10,   11,  16,  0,  0,  0,  0,  0,  0},				  
		      {0,   4,  0, 17,  0,  3, 0,  24,  0, 8,  20,  23, 11,  10,  25,  22,  0,   0,  0,  12,  13,  2,  18,  6,  0},					  
		      {0,   0,  7, 16,  0,  0,  6,  17, 2,  21,  0,  18,  0,  0, 0,  19,  0,   0,  8,  0,  0,  0,  0,  4,  0},					  
		      {18,  9, 25,  1,  2, 11,  0,  0, 13,  22,  4,  0,  21,  0,  5,  0,  23,   7,  0,  0,  15,  0,  3,  0,  8},						  
		      {0,  21, 10,  0,  0, 12,  0,  20,  16, 0, 19,  0,  0,  0,  0,  15,  14,   4,  2,  18,  23,  25,  11,  7,  0}}; 


For 9x9 Sudoku Puzzle (3x3 squares)

Flat profile:
Each sample counts as 0.01 seconds.
 no time accumulated

  %   cumulative   self              self     total           
 time   seconds   seconds    calls  Ts/call  Ts/call  name    
  0.00      0.00     0.00     6732     0.00     0.00  isSafe(int (*) [9], int, int, int)
  0.00      0.00     0.00     6732     0.00     0.00  UsedInRow(int (*) [9], int, int)
  0.00      0.00     0.00     2185     0.00     0.00  UsedInCol(int (*) [9], int, int)
  0.00      0.00     0.00     1078     0.00     0.00  UsedInBox(int (*) [9], int, int, int)
  0.00      0.00     0.00      770     0.00     0.00  FindUnassignedLocation(int (*) [9], int&, int&)
  0.00      0.00     0.00        1     0.00     0.00  SolveSudoku(int (*) [9])
  0.00      0.00     0.00        1     0.00     0.00  printGrid(int (*) [9])

For 16x16 Sudoku Puzzle (4x4 squares) Puzzle from: [1]

Flat profile:
Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total           
 time   seconds   seconds    calls   s/call   s/call  name    
 39.04     15.00    15.00 28071636     0.00     0.00  FindUnassignedLocation(int (*) [16], int&, int&)
 36.19     28.90    13.90 449145092     0.00     0.00  UsedInRow(int (*) [16], int, int)
 10.60     32.97     4.07 120354547     0.00     0.00  UsedInCol(int (*) [16], int, int)
  4.97     34.88     1.91 41212484     0.00     0.00  UsedInBox(int (*) [16], int, int, int)
  4.59     36.65     1.76        1     1.76    38.39  SolveSudoku(int (*) [16])
  4.55     38.39     1.75 449145092     0.00     0.00  isSafe(int (*) [16], int, int, int)
  0.01     38.40     0.01                             frame_dummy
  0.00     38.40     0.00        1     0.00     0.00  printGrid(int (*) [16])

For 25x25 Sudoku Puzzle (5x5 squares) Puzzle from: http://www.sudoku-download.net/sudoku_25x25.php

Flat profile:
Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total           
 time   seconds   seconds    calls  Ks/call  Ks/call  name    
 48.76   1052.18  1052.18 425478951     0.00     0.00  UsedInRow(int (*) [25], int, int)
 25.24   1596.81   544.63 876012758     0.00     0.00  FindUnassignedLocation(int (*) [25], int&, int&)
 12.48   1866.03   269.21 590817023     0.00     0.00  UsedInCol(int (*) [25], int, int)
  4.83   1970.24   104.21 425478951     0.00     0.00  isSafe(int (*) [25], int, int, int)
  4.79   2073.51   103.27        1     0.10     2.17  SolveSudoku(int (*) [25])
  4.35   2167.39    93.89 1355081265     0.00     0.00  UsedInBox(int (*) [25], int, int, int)
  0.01   2167.56     0.17                             frame_dummy
  0.00   2167.56     0.00        1     0.00     0.00  printGrid(int (*) [25])

Assignment 1: EasyBMP

EasyBMP Bitmap image library (Sample Program: Image to black and white renderer)

Library: http://easybmp.sourceforge.net/

Sample code:
/**/
#include "EasyBMP.h"

using namespace std;
int main(int argc, char* argv[]) {
        // Create a new Bitmap image with EasyBMP
        BMP Background;
        Background.ReadFromFile(argv[1]);
        BMP Output;
        int picWidth = Background.TellWidth();
        int picHeight = Background.TellHeight();
        Output.SetSize(Background.TellWidth(), Background.TellHeight());
        Output.SetBitDepth(1);
        for (int i = 1; i < picWidth - 1; ++i) {
                for (int j = 1; j < picHeight - 1; ++j) {
                        int col = (Background(i, j)->Blue + Background(i, j)->Green + 10 * Background(i, j)->Red) / 12;
                        if (col > 127) {
                                Output(i, j)->Red = 255;
                                Output(i, j)->Blue = 255;
                                Output(i, j)->Green = 255;
                        }
                        else {
                               Output(i, j)->Red = 0;
                               Output(i, j)->Blue = 0;
                               Output(i, j)->Green = 0;
                        }
                }
        }
        Output.WriteToFile(argv[2]);
        return 0;
}
/**/

</source>

The program was compiled using the following commands:

g++ -c -pg -g BW.cpp EasyBMP.cpp
g++ -pg BW.o EasyBMP.o -o BW
rm *.o

Attempted to run the program with a number of files (8K resolution):

Flat profile (Cabin):
Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls   s/call   s/call  name
 31.38      1.74     1.74 33177600     0.00     0.00  BMP::FindClosestColor(RGBApixel&)
 23.52      3.04     1.30 198921624    0.00     0.00  BMP::operator()(int, int)
  9.95      3.59     0.55        2     0.28     0.28  BMP::SetSize(int, int)
  7.60      4.01     0.42 41663472     0.00     0.00  BMP::GetColor(int)
  6.87      4.39     0.38                             main
  5.43      4.69     0.30 74841076     0.00     0.00  IntPow(int, int)
  3.62      4.89     0.20 74841072     0.00     0.00  BMP::TellNumberOfColors()
  3.35      5.07     0.19     4320     0.00     0.00  BMP::Write1bitRow(unsigned char*, int, int)
  2.53      5.21     0.14 124990416    0.00     0.00  IntSquare(int)
  2.17      5.33     0.12     4320     0.00     0.00  BMP::Read24bitRow(unsigned char*, int, int)
  1.63      5.42     0.09        2     0.05     0.05  BMP::~BMP()
  0.90      5.47     0.05                             GetEasyBMPwarningState()
  0.72      5.51     0.04        1     0.04     0.04  _GLOBAL__sub_I_EasyBMPwarnings
  0.18      5.52     0.01        2     0.01     0.01  BMP::TellWidth()
  0.18      5.53     0.01        1     0.01     2.99  BMP::WriteToFile(char const*)
  0.00      5.53     0.00       16     0.00     0.00  SafeFread(char*, int, int, _IO_FILE*)
  0.00      5.53     0.00        6     0.00     0.00  IsBigEndian()
  0.00      5.53     0.00        2     0.00     0.00  EasyBMPcheckDataSize()
  0.00      5.53     0.00        2     0.00     0.00  BMP::TellHeight()
  0.00      5.53     0.00        2     0.00     0.00  BMP::SetBitDepth(int)
  0.00      5.53     0.00        2     0.00     0.00  BMP::BMP()
  0.00      5.53     0.00        2     0.00     0.00  BMFH::BMFH()
  0.00      5.53     0.00        2     0.00     0.00  BMIH::BMIH()
  0.00      5.53     0.00        1     0.00     0.00  _GLOBAL__sub_I_main
  0.00      5.53     0.00        1     0.00     0.00  __static_initialization_and_destruction_0(int, int)
  0.00      5.53     0.00        1     0.00     0.00  __static_initialization_and_destruction_0(int, int)
  0.00      5.53     0.00        1     0.00     0.40  BMP::ReadFromFile(char const*)
  0.00      5.53     0.00        1     0.00     0.00  BMP::CreateStandardColorTable()

</source>

Flat profile (Lake):
Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls   s/call   s/call  name
 30.60      1.71     1.71 33177600     0.00     0.00  BMP::FindClosestColor(RGBApixel&)
 21.12      2.89     1.18 198921624    0.00     0.00  BMP::operator()(int, int)
 10.20      3.46     0.57        2     0.29     0.29  BMP::SetSize(int, int)
  8.59      3.94     0.48                             main
  6.26      4.29     0.35 76982189     0.00     0.00  IntPow(int, int)
  6.08      4.63     0.34 43804585     0.00     0.00  BMP::GetColor(int)
  5.55      4.94     0.31 76982185     0.00     0.00  BMP::TellNumberOfColors()
  3.76      5.15     0.21     4320     0.00     0.00  BMP::Write1bitRow(unsigned char*, int, int)
  3.76      5.36     0.21 131413755    0.00     0.00  IntSquare(int)
  2.15      5.48     0.12     4320     0.00     0.00  BMP::Read24bitRow(unsigned char*, int, int)
  1.07      5.54     0.06        2     0.03     0.03  BMP::~BMP()
  0.54      5.57     0.03                             GetEasyBMPwarningState()
  0.36      5.59     0.02        1     0.02     0.02  _GLOBAL__sub_I_EasyBMPwarnings
  0.00      5.59     0.00       16     0.00     0.00  SafeFread(char*, int, int, _IO_FILE*)
  0.00      5.59     0.00        6     0.00     0.00  IsBigEndian()
  0.00      5.59     0.00        2     0.00     0.00  EasyBMPcheckDataSize()
  0.00      5.59     0.00        2     0.00     0.00  BMP::TellHeight()
  0.00      5.59     0.00        2     0.00     0.00  BMP::SetBitDepth(int)
  0.00      5.59     0.00        2     0.00     0.00  BMP::TellWidth()
  0.00      5.59     0.00        2     0.00     0.00  BMP::BMP()
  0.00      5.59     0.00        2     0.00     0.00  BMFH::BMFH()
  0.00      5.59     0.00        2     0.00     0.00  BMIH::BMIH()
  0.00      5.59     0.00        1     0.00     0.00  _GLOBAL__sub_I_main
  0.00      5.59     0.00        1     0.00     0.00  __static_initialization_and_destruction_0(int, int)
  0.00      5.59     0.00        1     0.00     0.00  __static_initialization_and_destruction_0(int, int)
  0.00      5.59     0.00        1     0.00     3.13  BMP::WriteToFile(char const*)
  0.00      5.59     0.00        1     0.00     0.41  BMP::ReadFromFile(char const*)
  0.00      5.59     0.00        1     0.00     0.00  BMP::CreateStandardColorTable()

</source>

Assignment 1: Julia Set

This portion of the assignment focuses on Julia sets with the quadratic formula:

 fc(z) = z^2 + c;
 Where c and z are complex numbers

Psuedo code

 for(Pixel pix in image){
     pix.color = colorFunction(escapeValue(pix.loc, julia));
 }
 escapeValue(Complex loc, Complex julia){
     int cycles = 0;
     while(|loc| <=2 && ++cycles < MAXCYCLES){
        loc = loc * loc + julia;
     }
     return cycles;
 }

To view the full c++ code github link

This code is tested using the parameters

 Range R(-1.5, 1.5) I(-1, 1)
 Image height(1000) width(1500)
 MAXCYCLES 1000
 Julia values = .72 * e(i θ): θ[0, 2π] : 100 intervals
 Flat profile:
 Each sample counts as 0.01 seconds.
   %   cumulative   self              self     total           
  time   seconds   seconds    calls  ms/call  ms/call  name    
  91.82     80.04    80.04                             calcJulia(int*, int, int, float, float)
   2.28     82.03     1.99 450000000     0.00     0.00  Bitmap::operator<<(float)
   2.12     83.87     1.85 197791886     0.00     0.00  lerp(float, Pix&, Pix&, Bitmap&)
   0.29     84.12     0.25                             createBMP(int*, int, int)
   0.13     84.23     0.11      100     1.10     1.10  Bitmap::Bitmap(char const*, int, int)
   0.00     84.23     0.00      100     0.00     0.00  generateBitmapImage(unsigned char*, int, int, char const*)
   0.00     84.23     0.00      100     0.00     0.00  createBitmapFileHeader(int, int, int)
   0.00     84.23     0.00      100     0.00     0.00  createBitmapInfoHeader(int, int)
   0.00     84.23     0.00      100     0.00     0.00  Bitmap::~Bitmap()
   0.00     84.23     0.00        1     0.00     0.00  _GLOBAL__sub_I_main

Generated Image of Julia set at (-0.4, 0.6)

Julia.jpg

Assignment 2

Assignment 3