e1.cpp

e1.cpp

@@ -0,0 +1,14 @@
+#include<iostream>
+using namespace std;
+main()
+{
+    int a;
+    cout<<"enter a number"<<endl;
+    cin>>a;
+    if(a%2==0)
+    {
+        cout<<"Even"
+    }
+    else
+    cout<<"Odd";
+}

e2.cpp

@@ -0,0 +1,16 @@
+
+
+
+
+#include<iostream> 
+using namespace std; 
+int main() 
+{ 
+    int num; 
+    cout<<"Enter the number:"<<endl; 
+    cin>>num; 
+    if(num>0) cout<<"Number is Positive"<<endl; 
+    else if(num==0) cout<<"Number is '0'"<<endl; 
+    else cout<<"Number is Negative"; 
+
+}

h1.cpp

@@ -0,0 +1,26 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n=8,num=5,pattern[9][9];
+    //for first diogonal triangle
+    for(int i=0;i<=n/2;i++,num--)
+     for(int j=i;j<=n-i;j++)
+     {
+         pattern[i][j]=pattern[j][i]=num;          
+     }
+     num=5;
+     //for second diogonal triangle
+    for( int i=n;i>=n/2;i--,num--) 
+     for(int j=i;j>=n-i;j--)
+     {
+         pattern[i][j]=pattern[j][i]=num;
+     }
+     for(int i=0;i<=n;i++)
+     {
+       for(int j=0;j<=n;j++)
+       cout<<pattern[i][j]<<" ";
+     cout<<endl;
+     } 
+
+}  

p3_i.cpp

@@ -0,0 +1,14 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cout<<"Enter no. of rows:";
+    cin>>n;
+    for(int i=0;i<n;i++)
+    { 
+      for(int j=0;j<=i;j++)
+        cout<<"*";
+     cout<<endl;    
+    } 
+}