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Pattern Printing/+inHollowRhombus.cpp

@@ -0,0 +1,34 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter no. of lines: ";
+    cin>>n;
+    for(int i=n+1;i>1;i--){
+        for(int j=1;j<=2*n+1;j++){
+            // int a=n-i+1;
+            int b=j;
+            if(b>n+1) b=(2*n+2)-j;
+            if((i==b)|| (j==n+1)) cout<<"*";
+            else cout<<" ";
+        }
+        cout<<endl;
+    }
+
+    for(int i=1;i<=2*n+1;i++){
+        cout<<"*";
+    }
+     cout<<endl;
+
+    for(int i=2;i<=n+1;i++){
+        for(int j=1;j<=2*n+1;j++){
+            // int a=n-i+1;
+            int b=j;
+            if(b>n+1) b=(2*n+2)-j;
+            if((i==b)|| (j==n+1)) cout<<"*";
+            else cout<<" ";
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/HollowStarRhombus.cpp

@@ -0,0 +1,31 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter n: ";
+    cin>>n;
+    for(int i=n;i>=1;i--){
+        for(int j=1;j<2*n;j++){
+            int a=j;
+            if(a>n){
+                a=2*n-j;
+            }
+            if(i==a) cout<<"*";
+            else cout<<" ";
+        }
+        cout<<endl;
+    }
+
+    for(int i=2;i<=n;i++){
+        for(int j=1;j<2*n;j++){
+            int a=j;
+            if(a>n){
+                a=2*n-j;
+            }
+            if(i==a) cout<<"*";
+            else cout<<" ";
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/NumReverseV.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter no. of lines: ";
+    cin>>n;
+    for(int i=1;i<=n;i++){
+        for(int j=1;j<2*n;j++){
+            int a=n-i+1;
+            int b=j;
+            if(b>n) b=2*n-j;
+            if(a==b) cout<<i;
+            else cout<<" ";
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/StarOutX.cpp

@@ -0,0 +1,49 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter n: ";
+    cin>>n;
+    int a = n+1;
+    for(int i=1;i<n;i++){
+        for(int j=1;j<=i;j++){
+            cout<<"*";
+        }
+
+        for(int j=1;j<=a;j++){
+            cout<<" ";
+        }
+         a-=2;
+
+        for(int j=1;j<=i;j++){
+            cout<<"*";
+        }
+
+        cout<<endl;
+    }
+
+    for(int i=1;i<=n/2;i++){
+        for(int j=1;j<2*n;j++){
+            cout<<"*";
+        }
+        cout<<endl;
+    }
+
+    int b=1;
+    for(int i=1;i<n;i++){
+        for(int j=1;j<=n-i;j++){
+            cout<<"*";
+        }
+
+        for(int j=1;j<=b;j++){
+            cout<<" ";
+        }
+        b+=2;
+
+        for(int j=1;j<=n-i;j++){
+            cout<<"*";
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/alphaBridge.cpp

@@ -0,0 +1,28 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter row: ";
+    cin>>n;
+        for(int i=1;i<2*n;i++) {
+                cout<<(char)('A'+i-1);
+        }
+        cout<<endl;
+        for(int i=1;i<n;i++){
+            int a=65;
+            for(int j=1;j<=n-i;j++){
+                cout<<(char)a;
+                a++;
+            }
+            for(int j=1;j<=2*i-1;j++){
+                cout<<" ";
+                a++;
+            }
+            for(int j=1;j<=n-i;j++){
+                cout<<(char)a;
+                a++;
+            }
+            cout<<endl;
+        }
+    return 0;
+}

Pattern Printing/alphasquare.cpp

@@ -0,0 +1,14 @@
+#include<iostream>
+using namespace std;
+int main (){
+    int i,j,n;
+    cout<<"Enter the number : ";
+    cin>>n;
+    for(i=1;i<=n;i++){
+        for(j=1;j<=n;j++){
+            cout<<(char)(j+64)<<" ";
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/binaryTriangle.cpp

@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+int main (){
+    int i,j,n;
+    cout<<"Enter the number of rows: ";
+    cin>>n;
+    int a=1;
+
+    for(i=1;i<n+1;i++){
+        for(j=1;j<=i;j++){
+            if((i+j)%2==0) cout<<1;
+            else cout<<0;
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/floydTriangle.cpp

@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;
+int main (){
+    int i,j,n;
+    cout<<"Enter the number of rows: ";
+    cin>>n;
+    int a=1;
+    for(i=1;i<n+1;i++){
+        for(j=1;j<=i;j++){
+            cout<<a<<" ";
+            a+=1;
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/numAlphaTri.cpp

@@ -0,0 +1,24 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter n: ";
+    cin>>n;
+    for(int i=1;i<=n;i++){
+        if(i%2==1){
+            for(int j=1;j<=i;j++){
+                cout<<j<<" ";
+            }
+        }
+
+        else{
+            int a=65;
+            for(int j=1;j<=i;j++){
+                cout<<(char)a<<" ";
+                a++;
+            }
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/numBridge.cpp

@@ -0,0 +1,32 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter the no. of rows: ";
+    cin>>n;
+
+    int m = n-1;
+    for(int i=1;i<2*n;i++){
+        cout<<i;
+    }
+    cout<<endl;
+    for(int a=1;a<=m;a++){
+        int s=1;
+         for(int i=1;i<=m+1-a;i++){
+            cout<<s;
+            s++;
+        }
+
+        for(int j=1;j<2*a;j++){
+            cout<<" ";
+            s++;
+        }
+
+        for(int i=1;i<=m+1-a;i++){
+            cout<<s;
+            s++;
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/numPyramidPalindrome.cpp

@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int r;
+    cout<<"Enter the number of rows: ";
+    cin>>r;
+    for(int i=1;i<=r;i++){
+        for(int j=1;j<=r-i;j++){
+            cout<<" ";
+        }
+        for(int k=1;k<=i;k++){
+            cout<<k;
+        }
+        for(int q=i-1;q>=1;q--){
+            cout<<q;
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/numReverseBridge.cpp

@@ -0,0 +1,31 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter the no. of rows: ";
+    cin>>n;
+    for(int i=1;i<2*n;i++){
+        if(i>n){
+            int a=(2*n)-i;
+            cout<<a;
+        }
+        else cout<<i;
+
+    }
+    cout<<endl;
+    for(int a=1;a<n;a++){
+         for(int i=1;i<=n-a;i++){
+            cout<<i;
+        }
+
+        for(int j=1;j<2*a;j++){
+            cout<<" ";
+        }
+
+        for(int i=n-a;i>=1;i--){
+            cout<<i;
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/numSpiralReverse.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter n: ";
+    cin>>n;
+    for(int i=1;i<2*n;i++){
+        for(int j=1;j<2*n;j++){
+            int a=i;
+            int b=j;
+            if (i>n) a=2*n-i;
+            if(b>n) b=2*n-j;
+            int x = min(a,b);
+            cout<<n-x+1<<" ";
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/numberSquare.cpp

@@ -0,0 +1,14 @@
+#include<iostream>
+using namespace std;
+int main (){
+    int i,j,n;
+    cout<<"Enter the number : ";
+    cin>>n;
+    for(i=1;i<=n;i++){
+        for(j=1;j<=n;j++){
+            cout<<j<<" ";
+        }
+        cout<<endl;
+    }
+    return 0;
+}

Pattern Printing/numbersSpiral.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cout<<"Enter n: ";
+    cin>>n;
+    for(int i=1;i<2*n;i++){
+        for(int j=1;j<2*n;j++){
+            int a=i;
+            int b=j;
+            if(a>n) a=2*n-i;
+            if(b>n) b=2*n-j;
+            cout<<min(a,b);
+        }
+        cout<<endl;
+    }
+    return 0;
+}