PR : Making a new C++ folder with rules

check_star_graph.cpp → C++ Problem/Arrays/check_star_graph.cpp

@@ -1,53 +1,53 @@
-// CPP to find whether given graph is star or not
-#include<bits/stdc++.h>
-using namespace std;
-
-// define the size of incidence matrix
-#define size 4
-
-// function to find star graph
-bool checkStar(int mat[][size])
-{
-	// initialize number of vertex
-	// with deg 1 and n-1
-	int vertexD1 = 0, vertexDn_1 = 0;
-
-	// check for S1
-	if (size == 1)
-		return (mat[0][0] == 0);
-	
-	// check for S2
-	if (size == 2)
-	return (mat[0][0] == 0 && mat[0][1] == 1 &&
-			mat[1][0] == 1 && mat[1][1] == 0 );
-
-	// check for Sn (n>2)
-	for (int i = 0; i < size; i++)
-	{
-		int degreeI = 0;
-		for (int j = 0; j < size; j++)
-			if (mat[i][j])
-				degreeI++;
-
-		if (degreeI == 1)
-			vertexD1++;
-		else if (degreeI == size-1)
-			vertexDn_1++;
-	}
-	
-	return (vertexD1 == (size-1) &&
-			vertexDn_1 == 1);
-}
-
-// driver code
-int main()
-{
-	int mat[size][size] = { {0, 1, 1, 1},
-							{1, 0, 0, 0},
-							{1, 0, 0, 0},
-							{1, 0, 0, 0}};
-
-	checkStar(mat) ? cout << "Star Graph" :
-					cout << "Not a Star Graph";
-	return 0;
-}
+// CPP to find whether given graph is star or not
+#include<bits/stdc++.h>
+using namespace std;
+
+// define the size of incidence matrix
+#define size 4
+
+// function to find star graph
+bool checkStar(int mat[][size])
+{
+	// initialize number of vertex
+	// with deg 1 and n-1
+	int vertexD1 = 0, vertexDn_1 = 0;
+
+	// check for S1
+	if (size == 1)
+		return (mat[0][0] == 0);
+
+	// check for S2
+	if (size == 2)
+	return (mat[0][0] == 0 && mat[0][1] == 1 &&
+			mat[1][0] == 1 && mat[1][1] == 0 );
+
+	// check for Sn (n>2)
+	for (int i = 0; i < size; i++)
+	{
+		int degreeI = 0;
+		for (int j = 0; j < size; j++)
+			if (mat[i][j])
+				degreeI++;
+
+		if (degreeI == 1)
+			vertexD1++;
+		else if (degreeI == size-1)
+			vertexDn_1++;
+	}
+
+	return (vertexD1 == (size-1) &&
+			vertexDn_1 == 1);
+}
+
+// driver code
+int main()
+{
+	int mat[size][size] = { {0, 1, 1, 1},
+							{1, 0, 0, 0},
+							{1, 0, 0, 0},
+							{1, 0, 0, 0}};
+
+	checkStar(mat) ? cout << "Star Graph" :
+					cout << "Not a Star Graph";
+	return 0;
+}

C++ Problem/matrixmul.cpp → C++ Problem/Arrays/matrixmul.cpp

@@ -101,5 +101,4 @@ void display(int mult[][10], int rowFirst, int columnSecond)
 				cout << endl << endl;
 		}
 	}
-}
-O
+}

C++ Problem/sum of row.cpp → C++ Problem/Arrays/sum of row.cpp

@@ -1,24 +1,24 @@
-#include <iostream>
-using namespace std;
-
-int main()
-{
-	const int x=2;
-	const int y=3;
-int arary[x][y]={1,4,7,8,5,2};
-for (int i=0;i< x;i++)
-{
-	int sum=0;
-	{
-		for (int j=0;j<y;j++)
-		{
-			sum+=arary[i][j];
-		}
-	}
-	cout<<"sum of row  "<<i+1<<" "<<sum;
-	cout<<endl;
-}
-	
-
-
+#include <iostream>
+using namespace std;
+
+int main()
+{
+	const int x=2;
+	const int y=3;
+int arary[x][y]={1,4,7,8,5,2};
+for (int i=0;i< x;i++)
+{
+	int sum=0;
+	{
+		for (int j=0;j<y;j++)
+		{
+			sum+=arary[i][j];
+		}
+	}
+	cout<<"sum of row  "<<i+1<<" "<<sum;
+	cout<<endl;
+}
+
+
+
 }

Butterfly_Pattern.cpp → C++ Problem/Basics/Butterfly_Pattern.cpp

@@ -1,46 +1,46 @@
-#include<iostream>
-using namespace std;
-int main()
-{
-    int n;
-    cout<<"Enter the value of n \n";
-    cin>>n;
-
-    for(int i=1;i<=n;i++)
-    {
-        for(int j=1;j<=i;j++)
-        {
-            cout<<"*";
-        }
-        int space=2*n-2*i;
-        for(int j=1;j<=space;j++)
-        {
-            cout<<" ";
-        }
-        for(int j=1;j<=i;j++)
-        {
-            cout<<"*";
-        }
-        cout<<endl;
-        }
-
-        for(int i=n;i>=1;i--)
-    {
-        for(int j=1;j<=i;j++)
-        {
-            cout<<"*";
-        }
-        int space=2*n-2*i;
-        for(int j=1;j<=space;j++)
-        {
-            cout<<" ";
-        }
-        for(int j=1;j<=i;j++)
-        {
-            cout<<"*";
-        }
-        cout<<endl;
-        }
-
-    return 0;
-}
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cout<<"Enter the value of n \n";
+    cin>>n;
+
+    for(int i=1;i<=n;i++)
+    {
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"*";
+        }
+        int space=2*n-2*i;
+        for(int j=1;j<=space;j++)
+        {
+            cout<<" ";
+        }
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"*";
+        }
+        cout<<endl;
+        }
+
+        for(int i=n;i>=1;i--)
+    {
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"*";
+        }
+        int space=2*n-2*i;
+        for(int j=1;j<=space;j++)
+        {
+            cout<<" ";
+        }
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"*";
+        }
+        cout<<endl;
+        }
+
+    return 0;
+}

Diamond.cpp → C++ Problem/Basics/Diamond.cpp

@@ -1,36 +1,36 @@
-#include<iostream>
-using namespace std;
-int main()
-{
-    int i,s,k,n;
-    cout<<"Enter the value of n \n";
-    cin>>n;
-    for(i=1,k=0;i<=n;i++,k=0)
-    {
-      for(s=1;s<=(n-i);s++)
-      {
-          cout<<" ";
-      }
-      while(k!=(2*i)-1)
-      {
-          cout<<"*";
-          k++;
-      }
-      cout<<"\n";
-    }
-    for(i=n-1,k=0;i>=1;i--,k=0)
-    {
-      for(s=1;s<=(n-i);s++)
-      {
-          cout<<" ";
-      }
-      while(k!=(2*i)-1)
-      {
-          cout<<"*";
-          k++;
-      }
-      cout<<"\n";
-    }
-
-    return 0;
-}
+#include<iostream>
+using namespace std;
+int main()
+{
+    int i,s,k,n;
+    cout<<"Enter the value of n \n";
+    cin>>n;
+    for(i=1,k=0;i<=n;i++,k=0)
+    {
+      for(s=1;s<=(n-i);s++)
+      {
+          cout<<" ";
+      }
+      while(k!=(2*i)-1)
+      {
+          cout<<"*";
+          k++;
+      }
+      cout<<"\n";
+    }
+    for(i=n-1,k=0;i>=1;i--,k=0)
+    {
+      for(s=1;s<=(n-i);s++)
+      {
+          cout<<" ";
+      }
+      while(k!=(2*i)-1)
+      {
+          cout<<"*";
+          k++;
+      }
+      cout<<"\n";
+    }
+
+    return 0;
+}

Reverse_Pattern.cpp → C++ Problem/Basics/Reverse_Pattern.cpp

@@ -1,27 +1,27 @@
-#include<iostream>
-using namespace std;
-int main()
-{
-    int i,j,n;
-    cout<<"Enter the value of n \n";
-    cin>>n;
-    for(i=1;i<n;i++)
-    {
-      for(j=1;j<=i;j++)
-      {
-          if(j=n-i)
-          {
-              cout<<" ";
-          }
-          else
-          {
-              cout<<"*";
-          }
-
-
-      }
-      cout<<"\n";
-    }
-
-    return 0;
-}
+#include<iostream>
+using namespace std;
+int main()
+{
+    int i,j,n;
+    cout<<"Enter the value of n \n";
+    cin>>n;
+    for(i=1;i<n;i++)
+    {
+      for(j=1;j<=i;j++)
+      {
+          if(j=n-i)
+          {
+              cout<<" ";
+          }
+          else
+          {
+              cout<<"*";
+          }
+
+
+      }
+      cout<<"\n";
+    }
+
+    return 0;
+}