rename Others -> others (#648)

* rename Others -> temp

* rename Others -> others

others/Sparse matrix.cpp

@@ -0,0 +1,41 @@
+/*A sparse matrix is a matrix which has number of zeroes greater than (m*n)/2,
+where m and n are the dimensions of the matrix.*/
+#include <iostream>
+using namespace std;
+
+int main()
+{
+  int m, n;
+  int counterZeros = 0;
+  cout << "Enter dimensions of matrix (seperated with space): ";
+  cin >> m >> n;
+  int a[m][n];
+  cout << "Enter matrix elements:";
+  cout << "\n";
+
+  // reads the matrix from stdin
+  for (int i = 0; i < m; i++)
+  {
+    for (int j = 0; j < n; j++)
+    {
+      cout << "element? ";
+      cin >> a[i][j];
+    }
+  }
+
+  // counts the zero's
+  for (int i = 0; i < m; i++)
+  {
+    for (int j = 0; j < n; j++)
+    {
+      if (a[i][j] == 0)
+        counterZeros++; //Counting number of zeroes
+    }
+  }
+
+  // makes sure the matrix is a sparse matrix
+  if (counterZeros > ((m * n) / 2)) //Checking for sparse matrix
+    cout << "Sparse matrix";
+  else
+    cout << "Not a sparse matrix";
+}