From 63c7664e6fd4d243d44c97f02b1caa57604d0e52 Mon Sep 17 00:00:00 2001
From: ankur-jat0009 <ankurja16112004@gmail.com>
Date: Tue, 21 May 2024 13:28:20 +0530
Subject: [PATCH 1/2] update files

---
 README.md | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)

diff --git a/README.md b/README.md
index 7cab4d9..bc49ed2 100644
--- a/README.md
+++ b/README.md
@@ -147,6 +147,153 @@ Doing  pattern problem question in C and C++
 	2 3
 	4 5 6
 	7 8 9 10 
+
+
+20.
+
+    *******
+    *     *
+    *     *
+    *     *
+    *     *
+    *     *
+    *******
+
+21.
+
+    ***** *****
+    ****   ****
+    ***     ***
+    **       **
+    *         *
+    *         *
+    **       **
+    ***     ***
+    ****   ****
+    ***** *****
+
+22.
+
+        *
+       * *
+      *   *
+     *     *
+    *       *
+    *        *
+     *      *
+      *    *
+       *  *
+        *
+
+23.
+
+    1
+    2*2
+    3*3*3
+    4*4*4*4
+    5*5*5*5*5
+    6*6*6*6*6*6
+    7*7*7*7*7*7*7
+
+24.
+
+    A
+    ABA
+    ABCBA
+    ABCDCBA
+    ABCDEDCBA
+    ABCDEFEDCBA
+    ABCDEFGFEDCBA
+
+25.
+
+    1
+    12
+    1 3
+    1  4
+    1   5
+    1    6
+    1234567
+
+26.
+
+    1234567
+    2    7
+    3   7
+    4  7
+    5 7
+    67
+    7
+
+27.
+
+    ********1********
+    *******2*2*******
+    ******3*3*3******
+    *****4*4*4*4*****
+    ****5*5*5*5*5****
+    ***6*6*6*6*6*6***
+    **7*7*7*7*7*7*7**
+    *8*8*8*8*8*8*8*8*
+    9*9*9*9*9*9*9*9*9
+
+28.
+
+          1
+         121
+        12321
+       1234321
+      123454321
+     12345654321
+    1234567654321
+
+29.
+
+    1
+    2*3
+    4*5*6
+    7*8*9*10
+    11*12*13*14*15
+    11*12*13*14*15
+    7*8*9*10
+    4*5*6
+    2*3
+    1
+
+
+30.
+
+    1
+    1 1
+    1 2 1
+    1 3 3 1
+    1 4 6 4 1
+    1 5 10 10 5 1
+    1 6 15 20 15 6 1
+
+31.
+
+    1
+    123
+    12345
+    1234521
+    123454321
+    12345
+    123
+    1
+
+32.
+
+    *        *
+    **      **
+    ***    ***
+    ****  ****
+    **********
+    **********
+    ****  ****
+    ***    ***
+    **      **
+    *        *
    
    
    

From 13a7180538684c738bc23b67d288af9a67d78eb3 Mon Sep 17 00:00:00 2001
From: Ankur-Jat <146361526+ankur-jat0009@users.noreply.github.com>
Date: Tue, 21 May 2024 13:35:47 +0530
Subject: [PATCH 2/2] Add more files

---
 pattern20.cpp | 19 +++++++++++++++++++
 pattern21.cpp | 33 +++++++++++++++++++++++++++++++++
 pattern22.cpp | 39 +++++++++++++++++++++++++++++++++++++++
 pattern23.cpp | 18 ++++++++++++++++++
 pattern24.cpp | 18 ++++++++++++++++++
 pattern25.cpp | 18 ++++++++++++++++++
 pattern26.cpp | 16 ++++++++++++++++
 pattern27.cpp | 23 +++++++++++++++++++++++
 pattern28.cpp | 31 +++++++++++++++++++++++++++++++
 pattern29.cpp | 32 ++++++++++++++++++++++++++++++++
 pattern30.cpp | 15 +++++++++++++++
 pattern31.cpp | 20 ++++++++++++++++++++
 pattern32.cpp | 26 ++++++++++++++++++++++++++
 13 files changed, 308 insertions(+)
 create mode 100644 pattern20.cpp
 create mode 100644 pattern21.cpp
 create mode 100644 pattern22.cpp
 create mode 100644 pattern23.cpp
 create mode 100644 pattern24.cpp
 create mode 100644 pattern25.cpp
 create mode 100644 pattern26.cpp
 create mode 100644 pattern27.cpp
 create mode 100644 pattern28.cpp
 create mode 100644 pattern29.cpp
 create mode 100644 pattern30.cpp
 create mode 100644 pattern31.cpp
 create mode 100644 pattern32.cpp

diff --git a/pattern20.cpp b/pattern20.cpp
new file mode 100644
index 0000000..7b6605a
--- /dev/null
+++ b/pattern20.cpp
@@ -0,0 +1,19 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    for(int i =0;i<n;i++){
+        for(int j=0;j<n;j++){
+            if(i==0 || i== n-1 || j == 0 || j== n-1){ 
+             cout<< "*" ;
+            }
+            else{
+                cout<<" ";
+            }
+        }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern21.cpp b/pattern21.cpp
new file mode 100644
index 0000000..9751797
--- /dev/null
+++ b/pattern21.cpp
@@ -0,0 +1,33 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    for(int i =0;i<n;i++){
+        for(int j=0;j<n-i;j++){ 
+             cout<< "*" ; 
+        }
+        for(int j =0;j<((2*i)+1);j++){
+            cout<<" ";
+        }
+        for(int k =0;k<n-i;k++){
+            cout<<"*";
+        }
+        cout<<endl;           
+     }
+
+      for(int i =0;i<n;i++){
+        for(int j=0;j<i+1;j++){ 
+             cout<< "*" ; 
+        }
+        for(int j =0;j<((2*n)-(2*i)-1);j++){
+            cout<<" ";
+        }
+        for(int k =0;k<i+1;k++){
+            cout<<"*";
+        }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern22.cpp b/pattern22.cpp
new file mode 100644
index 0000000..4373fec
--- /dev/null
+++ b/pattern22.cpp
@@ -0,0 +1,39 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    // upper
+    for(int i =0;i<n;i++){
+        for(int j=0;j<n-i-1;j++){ 
+             cout<< " " ; 
+        }
+        for(int k=0;k<i+1;k++){
+            if(k==0||k==(i+1)-1){
+            cout<<"* ";
+            }
+            else{
+                cout<<"  ";
+            }
+        }
+
+        cout<<endl;           
+     }
+
+// lower
+     
+     for(int i =0;i<n;i++){
+        for(int j=0;j<i;j++){ 
+             cout<< " " ; 
+        }
+        for(int k=0;k<(2*n)-(2*i)-1;k++){
+       if(k==0||k==((2*n)-(2*i)-1)-1)
+            cout<<"* ";
+            else
+            cout<<" ";
+        }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern23.cpp b/pattern23.cpp
new file mode 100644
index 0000000..d494fc5
--- /dev/null
+++ b/pattern23.cpp
@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    for(int i =0;i<n;i++){
+        for(int j=0;j<(2*i)+1;j++){ 
+            if(j%2==1)
+             cout<< "*" ; 
+             else
+             cout<<i+1;
+
+        }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern24.cpp b/pattern24.cpp
new file mode 100644
index 0000000..6445509
--- /dev/null
+++ b/pattern24.cpp
@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cin>>n;
+    for(int i =0;i<n;i++){
+        char ch;
+        for(int j=0;j<i+1;j++){ 
+             ch = j+1 +'A'-1;
+             cout<<ch  ; 
+        }
+        for(char t=ch;t>'A';){
+            t=t-1;
+            cout<<t;
+        }
+        cout<<endl;           
+     }
+}
\ No newline at end of file
diff --git a/pattern25.cpp b/pattern25.cpp
new file mode 100644
index 0000000..7a4e2d2
--- /dev/null
+++ b/pattern25.cpp
@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cin>>n;
+    for(int i =0;i<n;i++){
+        for(int j=0;j<=i;j++){
+            if(j==0||j==i||i==n-1) {
+             cout<< j+1 ;
+            }
+             else{
+             cout<<" "; 
+                    } 
+         }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern26.cpp b/pattern26.cpp
new file mode 100644
index 0000000..6cba18d
--- /dev/null
+++ b/pattern26.cpp
@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cin>>n;
+    for(int i =0;i<n;i++){
+        for(int j=i+1;j<=n;j++){
+            if(i==0||j==n||j==i+1) 
+             cout<< j ;
+             else
+             cout<<" "; 
+        }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern27.cpp b/pattern27.cpp
new file mode 100644
index 0000000..9383195
--- /dev/null
+++ b/pattern27.cpp
@@ -0,0 +1,23 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cin>>n;
+    for(int i=0;i<n;i++){
+        int start_num_index = 8-i;
+        int num = i+1;
+        int count_num =num;
+        for(int j=0;j<17;j++){ 
+            if(j==start_num_index && count_num > 0){
+                cout<<num;
+                start_num_index+=2;
+                count_num--;
+            }
+            else{
+                cout<<"*";
+            }
+        }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern28.cpp b/pattern28.cpp
new file mode 100644
index 0000000..ce17d9d
--- /dev/null
+++ b/pattern28.cpp
@@ -0,0 +1,31 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cin>>n;
+    int k=n;
+    for(int i=0;i<n;i++){
+        int c=1;
+        for(int j=0;j<k;j++){
+            if(j<n-i-1){
+                cout<<" ";
+            } 
+            else if (j<=n-1){
+                cout<<c;
+                c++;
+            }
+            else if(j==n){
+                c=c-2;
+                cout<<c;
+                c--;
+            }
+            else{
+                cout<<c;
+                c--;
+            }   
+        }
+        k++;
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern29.cpp b/pattern29.cpp
new file mode 100644
index 0000000..627668a
--- /dev/null
+++ b/pattern29.cpp
@@ -0,0 +1,32 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    int c=1;
+    for(int i =0;i<n;i++){
+        for(int j=0;j<=i;j++){ 
+             cout<< c ; 
+             c++;
+             if(j<i){
+                cout<<"*";
+             }
+        }
+        cout<<endl;           
+     }
+     int start = c-n;
+      for(int i =0;i<n;i++){
+        int k = start;
+       for(int j=0;j<=n-i-1;j++){
+            cout<<k;
+            k++;
+            if(j<n-i-1){
+                cout<<"*";
+            }
+
+        }
+        start=start-(n-i-1);
+        cout<<endl;
+      }
+}
\ No newline at end of file
diff --git a/pattern30.cpp b/pattern30.cpp
new file mode 100644
index 0000000..66a6e77
--- /dev/null
+++ b/pattern30.cpp
@@ -0,0 +1,15 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    for(int i =1;i<=n;i++){
+         int c=1;
+        for(int j=1;j<=i;j++){ 
+             cout<< c<<" " ; 
+             c=c*(i-j)/j;
+        }
+        cout<<endl;           
+     }
+}
\ No newline at end of file
diff --git a/pattern31.cpp b/pattern31.cpp
new file mode 100644
index 0000000..1a8cd69
--- /dev/null
+++ b/pattern31.cpp
@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+int main(){
+    int n;
+    cin>>n;
+    for(int i =0;i<n;i++){
+        int cond = i<= n/2 ? 2*i : 2*(n-i-1);
+        for(int j=0;j<=cond;j++){ 
+            if(j<=n/2){
+             cout<< j+1 ; 
+             }
+             else{
+                cout<<cond-j+1;
+
+             }
+        }
+        cout<<endl;           
+     }
+    return 0;
+}
\ No newline at end of file
diff --git a/pattern32.cpp b/pattern32.cpp
new file mode 100644
index 0000000..f3349d5
--- /dev/null
+++ b/pattern32.cpp
@@ -0,0 +1,26 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    for(int i=0;i<2*n;i++){
+        int cond = i<n ? i : n+ (n-i-1);
+        int space_count = i<n ? 2*(n-cond-1) : i- cond-1;
+        for(int j=0;j<2*n;j++){ 
+            if(j<=cond){
+           cout<< "*" ; 
+            }
+            else if(space_count>0){
+                cout<<" ";
+                space_count--;
+            }
+            else{
+                cout<<"*";
+            }
+        }
+        cout<<endl;           
+     }
+
+  return 0;
+}
\ No newline at end of file