Traverse matrix in L shape
Given a matrix of size N x M. Where N is number of rows and m indicates columns. Our goal is to print all L shape in given matrix starting from top left corner. For example.
Example 1
matrix1[5][4] =
{
{4, 6, -2 , 2 },
{3, -1, 5 , 3 },
{1, 4, 4, 6 },
{9, 4, 6, 2 },
{1, 2, 8, 9 }
}
Here M = 5, N = 4
Output L Shapes
------------------------
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
------------------------
Example 2
----------
matrix2[5][5] =
{
{1, 9, 8 , 3 , 7},
{3, -1, 5 , 3 , 8},
{1, 3, 4, 6 , 11},
{0, 8, 8, 6 , 2},
{1, 3, 4, 5 , 10}
}
Here M = 5, N = 5
Output L Shapes
----------------------------
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
----------------------------
Note that L shape are start with first row and first column, and each L shape are reduce 1 column and 1 rows.
// C Program
// Traverse matrix in L shape
#include <stdio.h>
#define M 4 // col
#define N 5 // row
// Print the L shape in given matrix
void print_l_shape(int matrix[N][M])
{
printf(" L Shapes \n");
// Loop controlling variables
int c = 0;
int r = 0;
int k =0;
for(c = 0;c < M; c++)
{
for(r = 0; r < (N-1)-c; r++)
{
printf(" %d",matrix[r][c]);
}
for(k = c;k < M;k++)
{
printf(" %d",matrix[r][k]);
}
printf("\n");
}
printf("\n");
}
int main()
{
// Define matrix of integer elements
int matrix[N][M] =
{
{4, 6, -2 , 2 },
{3, -1, 5 , 3 },
{1, 4, 4, 6 },
{9, 4, 6, 2 },
{1, 2, 8, 9 }
};
print_l_shape(matrix);
return 0;
}Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
/*
Java Program
Traverse matrix in L shape
*/
class MyMatrix
{
// Print the L shape in given matrix
public void print_l_shape(int[][] matrix)
{
// Get the size
int row = matrix.length;
int col = matrix[0].length;
System.out.print(" L Shapes \n");
// Loop controlling variables
int c = 0;
int r = 0;
int k = 0;
for (c = 0; c < col; c++)
{
for (r = 0; r < (row - 1) - c; r++)
{
System.out.print(" " + matrix[r][c]);
}
for (k = c; k < col; k++)
{
System.out.print(" " + matrix[r][k]);
}
System.out.print("\n");
}
System.out.print("\n");
}
public static void main(String[] args)
{
MyMatrix obj = new MyMatrix();
// Case 1
// Define matrix of integer elements
int[][] matrix1 =
{
{4, 6, -2 , 2 },
{3, -1, 5 , 3 },
{1, 4, 4, 6 },
{9, 4, 6, 2 },
{1, 2, 8, 9 }
};
obj.print_l_shape(matrix1);
// Case 2
// Define matrix of integer elements
int[][] matrix2 =
{
{1, 9, 8 , 3 , 7},
{3, -1, 5 , 3 , 8},
{1, 3, 4, 6 , 11},
{0, 8, 8, 6 , 2},
{1, 3, 4, 5 , 10}
};
obj.print_l_shape(matrix2);
}
}Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
// Include header file
#include <iostream>
#define M 4 // col
#define N 5 // row
using namespace std;
/*
C++ Program
Traverse matrix in L shape
*/
class MyMatrix
{
public:
// Print the L shape in given matrix
void print_l_shape(int matrix[N][M])
{
cout << " L Shapes \n";
// Loop controlling variables
int c = 0;
int r = 0;
int k = 0;
for (c = 0; c < M; c++)
{
for (r = 0; r < (N - 1) - c; r++)
{
cout << " " << matrix[r][c];
}
for (k = c; k < M; k++)
{
cout << " " << matrix[r][k];
}
cout << "\n";
}
cout << "\n";
}
};
int main()
{
MyMatrix obj = MyMatrix();
// Define matrix of integer elements
int matrix[N][M] =
{
{4, 6, -2 , 2 },
{3, -1, 5 , 3 },
{1, 4, 4, 6 },
{9, 4, 6, 2 },
{1, 2, 8, 9 }
};
obj.print_l_shape(matrix);
return 0;
}Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
// Include namespace system
using System;
/*
C# Program
Traverse matrix in L shape
*/
public class MyMatrix
{
// Print the L shape in given matrix
public void print_l_shape(int[,] matrix)
{
// Get the size
int row = matrix.GetLength(0);
int col = matrix.GetLength(1);
Console.Write(" L Shapes \n");
// Loop controlling variables
int c = 0;
int r = 0;
int k = 0;
for (c = 0; c < col; c++)
{
for (r = 0; r < (row - 1) - c; r++)
{
Console.Write(" " + matrix[r,c]);
}
for (k = c; k < col; k++)
{
Console.Write(" " + matrix[r,k]);
}
Console.Write("\n");
}
Console.Write("\n");
}
public static void Main(String[] args)
{
MyMatrix obj = new MyMatrix();
// Case 1
// Define matrix of integer elements
int[,] matrix1 =
{
{4, 6, -2 , 2 },
{3, -1, 5 , 3 },
{1, 4, 4, 6 },
{9, 4, 6, 2 },
{1, 2, 8, 9 }
};
obj.print_l_shape(matrix1);
// Case 2
// Define matrix of integer elements
int[,] matrix2 =
{
{1, 9, 8 , 3 , 7},
{3, -1, 5 , 3 , 8},
{1, 3, 4, 6 , 11},
{0, 8, 8, 6 , 2},
{1, 3, 4, 5 , 10}
};
obj.print_l_shape(matrix2);
}
}Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
<?php
/*
Php Program
Traverse matrix in L shape
*/
class MyMatrix
{
// Print the L shape in given matrix
public function print_l_shape($matrix)
{
// Get the size
$row = count($matrix);
$col = count($matrix[0]);
echo " L Shapes \n";
// Loop controlling variables
$c = 0;
$r = 0;
$k = 0;
for ($c = 0; $c < $col; $c++)
{
for ($r = 0; $r < ($row - 1) - $c; $r++)
{
echo " ". $matrix[$r][$c];
}
for ($k = $c; $k < $col; $k++)
{
echo " ". $matrix[$r][$k];
}
echo "\n";
}
echo "\n";
}
}
function main()
{
$obj = new MyMatrix();
// Case 1
// Define matrix of integer elements
$matrix1 = array(
array(4, 6, -2, 2),
array(3, -1, 5, 3),
array(1, 4, 4, 6),
array(9, 4, 6, 2),
array(1, 2, 8, 9)
);
$obj->print_l_shape($matrix1);
// Case 2
// Define matrix of integer elements
$matrix2 = array(
array(1, 9, 8, 3, 7),
array(3, -1, 5, 3, 8),
array(1, 3, 4, 6, 11),
array(0, 8, 8, 6, 2),
array(1, 3, 4, 5, 10)
);
$obj->print_l_shape($matrix2);
}
main();Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
/*
Node Js Program
Traverse matrix in L shape
*/
class MyMatrix
{
// Print the L shape in given matrix
print_l_shape(matrix)
{
// Get the size
var row = matrix.length;
var col = matrix[0].length;
process.stdout.write(" L Shapes \n");
// Loop controlling variables
var c = 0;
var r = 0;
var k = 0;
for (c = 0; c < col; c++)
{
for (r = 0; r < (row - 1) - c; r++)
{
process.stdout.write(" " + matrix[r][c]);
}
for (k = c; k < col; k++)
{
process.stdout.write(" " + matrix[r][k]);
}
process.stdout.write("\n");
}
process.stdout.write("\n");
}
}
function main()
{
var obj = new MyMatrix();
// Case 1
// Define matrix of integer elements
var matrix1 = [
[4, 6, -2, 2] ,
[3, -1, 5, 3] ,
[1, 4, 4, 6] ,
[9, 4, 6, 2] ,
[1, 2, 8, 9]
];
obj.print_l_shape(matrix1);
// Case 2
// Define matrix of integer elements
var matrix2 = [
[1, 9, 8, 3, 7] ,
[3, -1, 5, 3, 8] ,
[1, 3, 4, 6, 11] ,
[0, 8, 8, 6, 2] ,
[1, 3, 4, 5, 10]
];
obj.print_l_shape(matrix2);
}
main();Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
# Python 3 Program
# Traverse matrix in L shape
class MyMatrix :
# Print the L shape in given matrix
def print_l_shape(self, matrix) :
# Get the size
row = len(matrix)
col = len(matrix[0])
print(" L Shapes \n", end = "")
# Loop controlling variables
c = 0
r = 0
k = 0
while (c < col) :
r = 0
while (r < (row - 1) - c) :
print(" ", matrix[r][c], end = "")
r += 1
k = c
while (k < col) :
print(" ", matrix[r][k], end = "")
k += 1
print("\n", end = "")
c += 1
print("\n", end = "")
def main() :
obj = MyMatrix()
# Case 1
# Define matrix of integer elements
matrix1 = [
[4, 6, -2, 2] ,
[3, -1, 5, 3] ,
[1, 4, 4, 6] ,
[9, 4, 6, 2] ,
[1, 2, 8, 9]
]
obj.print_l_shape(matrix1)
# Case 2
# Define matrix of integer elements
matrix2 = [
[1, 9, 8, 3, 7] ,
[3, -1, 5, 3, 8] ,
[1, 3, 4, 6, 11] ,
[0, 8, 8, 6, 2] ,
[1, 3, 4, 5, 10]
]
obj.print_l_shape(matrix2)
if __name__ == "__main__": main()Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
# Ruby Program
# Traverse matrix in L shape
class MyMatrix
# Print the L shape in given matrix
def print_l_shape(matrix)
# Get the size
row = matrix.length
col = matrix[0].length
print(" L Shapes \n")
# Loop controlling variables
c = 0
r = 0
k = 0
while (c < col)
r = 0
while (r < (row - 1) - c)
print(" ", matrix[r][c])
r += 1
end
k = c
while (k < col)
print(" ", matrix[r][k])
k += 1
end
print("\n")
c += 1
end
print("\n")
end
end
def main()
obj = MyMatrix.new()
# Case 1
# Define matrix of integer elements
matrix1 = [
[4, 6, -2, 2] ,
[3, -1, 5, 3] ,
[1, 4, 4, 6] ,
[9, 4, 6, 2] ,
[1, 2, 8, 9]
]
obj.print_l_shape(matrix1)
# Case 2
# Define matrix of integer elements
matrix2 = [
[1, 9, 8, 3, 7] ,
[3, -1, 5, 3, 8] ,
[1, 3, 4, 6, 11] ,
[0, 8, 8, 6, 2] ,
[1, 3, 4, 5, 10]
]
obj.print_l_shape(matrix2)
end
main()Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
/*
Scala Program
Traverse matrix in L shape
*/
class MyMatrix
{
// Print the L shape in given matrix
def print_l_shape(matrix: Array[Array[Int]]): Unit = {
// Get the size
var row: Int = matrix.length;
var col: Int = matrix(0).length;
print(" L Shapes \n");
// Loop controlling variables
var c: Int = 0;
var r: Int = 0;
var k: Int = 0;
while (c < col)
{
r = 0;
while (r < (row - 1) - c)
{
print(" " + matrix(r)(c));
r += 1;
}
k = c;
while (k < col)
{
print(" " + matrix(r)(k));
k += 1;
}
print("\n");
c += 1;
}
print("\n");
}
}
object Main
{
def main(args: Array[String]): Unit = {
var obj: MyMatrix = new MyMatrix();
// Case 1
// Define matrix of integer elements
var matrix1: Array[Array[Int]] = Array(
Array(4, 6, -2, 2),
Array(3, -1, 5, 3),
Array(1, 4, 4, 6),
Array(9, 4, 6, 2),
Array(1, 2, 8, 9)
);
obj.print_l_shape(matrix1);
// Case 2
// Define matrix of integer elements
var matrix2: Array[Array[Int]] = Array(
Array(1, 9, 8, 3, 7),
Array(3, -1, 5, 3, 8),
Array(1, 3, 4, 6, 11),
Array(0, 8, 8, 6, 2),
Array(1, 3, 4, 5, 10)
);
obj.print_l_shape(matrix2);
}
}Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
/*
Swift 4 Program
Traverse matrix in L shape
*/
class MyMatrix
{
// Print the L shape in given matrix
func print_l_shape(_ matrix: [[Int]])
{
// Get the size
let row: Int = matrix.count;
let col: Int = matrix[0].count;
print(" L Shapes \n", terminator: "");
// Loop controlling variables
var c: Int = 0;
var r: Int = 0;
var k: Int = 0;
while (c < col)
{
r = 0;
while (r < (row - 1) - c)
{
print(" ", matrix[r][c], terminator: "");
r += 1;
}
k = c;
while (k < col)
{
print(" ", matrix[r][k], terminator: "");
k += 1;
}
print("\n", terminator: "");
c += 1;
}
print("\n", terminator: "");
}
}
func main()
{
let obj: MyMatrix = MyMatrix();
// Case 1
// Define matrix of integer elements
let matrix1: [[Int]] = [
[4, 6, -2, 2] ,
[3, -1, 5, 3] ,
[1, 4, 4, 6] ,
[9, 4, 6, 2] ,
[1, 2, 8, 9]
];
obj.print_l_shape(matrix1);
// Case 2
// Define matrix of integer elements
let matrix2: [[Int]] = [
[1, 9, 8, 3, 7] ,
[3, -1, 5, 3, 8] ,
[1, 3, 4, 6, 11] ,
[0, 8, 8, 6, 2] ,
[1, 3, 4, 5, 10]
];
obj.print_l_shape(matrix2);
}
main();Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
/*
Kotlin Program
Traverse matrix in L shape
*/
class MyMatrix
{
// Print the L shape in given matrix
fun print_l_shape(matrix: Array<Array<Int>>): Unit
{
// Get the size
var row: Int = matrix.count();
var col: Int = matrix[0].count();
print(" L Shapes \n");
// Loop controlling variables
var c: Int = 0;
var r: Int ;
var k: Int ;
while (c < col)
{
r = 0;
while (r < (row - 1) - c)
{
print(" " + matrix[r][c]);
r += 1;
}
k = c;
while (k < col)
{
print(" " + matrix[r][k]);
k += 1;
}
print("\n");
c += 1;
}
print("\n");
}
}
fun main(args: Array<String> ): Unit
{
var obj: MyMatrix = MyMatrix();
// Case 1
// Define matrix of integer elements
var matrix1: Array <Array<Int>> = arrayOf(
arrayOf(4, 6, -2, 2),
arrayOf(3, -1, 5, 3),
arrayOf(1, 4, 4, 6),
arrayOf(9, 4, 6, 2),
arrayOf(1, 2, 8, 9));
obj.print_l_shape(matrix1);
// Case 2
// Define matrix of integer elements
var matrix2: Array<Array<Int>> = arrayOf(
arrayOf(1, 9, 8, 3, 7),
arrayOf(3, -1, 5, 3, 8),
arrayOf(1, 3, 4, 6, 11),
arrayOf(0, 8, 8, 6, 2),
arrayOf(1, 3, 4, 5, 10));
obj.print_l_shape(matrix2);
}Output
L Shapes
4 3 1 9 1 2 8 9
6 -1 4 4 6 2
-2 5 4 6
2 3
L Shapes
1 3 1 0 1 3 4 5 10
9 -1 3 8 8 6 2
8 5 4 6 11
3 3 8
7
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