Added Day 5 Content do-while-loop.md (#174)

* Update do-while-loop.md

* Update do-while-loop.md

* Update do-while-loop.md

docs/day-05/do-while-loop.md

@@ -6,119 +6,107 @@ sidebar_label: "While and Do-While Loop"
 slug: while-and-do-while-loop-in-cpp
 ---
 
-IMAGE FILE:
-![Do While Loop](../../static/img/day-05/while-do-while-loop-in-cpp.png)
 
-# 1. C++ while and do...while Loop
+## while Loop
 
-In C++, `while` and `do-while loops` are control flow constructs used for repetitive execution of a block of code.
+A `while` loop in C++ repeatedly executes a block of statements as long as a specified condition is true. The condition is evaluated before the execution of the loop's body.
 
-In a `while` loop, the condition is checked before the loop body executes. In contrast, in a do-while loop, the condition is checked after the loop body executes.
+![Do While Loop](../../static/img/day-05/while-do-while-loop-in-cpp.png)
 
-A `do-while` loop guarantees that the loop body is executed at least once, while a while loop may not execute at all if the initial condition is false.
 
 
-# 2. C++ while Loop
 
-The `while` loop repeatedly executes a target statement as long as a given condition is true. Its syntax is as follows:
-```cpp
-while (condition) {
-    // statement(s) to be executed as long as the condition is true
-}
+### Flowchart of while Loop
+
+```plaintext
+      +----------------------+
+      |      Start           |
+      +----------------------+
+                |
+                v
+      +----------------------+
+      |  Condition?          |
+      +----------------------+
+         |          |
+         |          v
+      True         False
+         |          |
+         v          v
++----------------+  |
+|  Loop Body     |  |
++----------------+  |
+         |          |
+         +----------+
+                |
+                v
+      +----------------------+
+      |      End             |
+      +----------------------+
 ```
 
-# 3. Flowchart of while Loop
-
-```mermaid
-graph TD;
-    StartLoop --> ConditionEvaluation;
-    ConditionEvaluation --> |True| ConditionTrue;
-    ConditionEvaluation --> |False| EndLoop;
-    ConditionTrue --> ExecuteLoopBody;
-    ExecuteLoopBody --> UpdateLoopVariables;
-    UpdateLoopVariables --> ConditionEvaluation;
-    ConditionTrue --> ConditionEvaluation;
-```
-
-
-**Explanation:**
-
-- The loop begins with the "StartLoop" block.
-- The condition is evaluated at the "ConditionEvaluation" block. If the condition is false, the loop terminates, and control passes to the "EndLoop" block.
-- If the condition is true, the loop body is executed, as indicated by the "ExecuteLoopBody" block.
-- After executing the loop body, any necessary variable updates are performed (e.g., incrementing a counter).
-- Control then returns to the "ConditionEvaluation" block, where the condition is checked again.
-- This process continues until the condition becomes false, at which point the loop terminates, and control passes to the "EndLoop" block.
-
-This flowchart represents the basic structure of a `while` loop and illustrates how the loop iterates as long as the condition remains true.
-
-# 4. Example 1: Display Numbers from 1 to 5
+### Example 1: Display Numbers from 1 to 5
 
 ```cpp
 #include <iostream>
 
 int main() {
-    int num = 1;
-
-    while (num <= 5) {
-        std::cout << num << " ";
-        num++;
+    int i = 1;
+    while (i <= 5) {
+        std::cout << i << std::endl;
+        i++;
     }
-
     return 0;
 }
 ```
 
-# 5. C++ do...while Loop
-
-The `do-while` loop is similar to the while loop, but with one crucial difference: the condition is evaluated after the loop body executes, ensuring that the loop body is executed at least once. Its syntax is as follows:
-
-```cpp
-do {
-    // statement(s) to be executed
-} while (condition);
-```
-
-
-# 6. Flowchart of do...while Loop
-
-```mermaid
-graph TD;
-    StartLoop --> ExecuteLoopBody;
-    ExecuteLoopBody --> UpdateLoopVariables;
-    UpdateLoopVariables --> ConditionEvaluation;
-    ConditionEvaluation --> |True| ConditionTrue;
-    ConditionEvaluation --> |False| EndLoop;
-    ConditionTrue --> ExecuteLoopBody;
+## do...while Loop
+
+A `do...while` loop in C++ is similar to a `while` loop, except that the condition is evaluated after the execution of the loop's body. This guarantees that the loop body is executed at least once.
+
+### Flowchart of do...while Loop
+
+```plaintext
+      +----------------------+
+      |      Start           |
+      +----------------------+
+                |
+                v
+      +----------------------+
+      |  Loop Body           |
+      +----------------------+
+                |
+                v
+      +----------------------+
+      |  Condition?          |
+      +----------------------+
+         |          |
+         |          v
+      True         False
+         |          |
+         v          v
++----------------+  |
+|  Loop Body     |  |
++----------------+  |
+         |          |
+         +----------+
+                |
+                v
+      +----------------------+
+      |      End             |
+      +----------------------+
 ```
 
-
-**Explanation:**
-
-- The loop begins with the "StartLoop" block.
-- The loop body is executed first at the "ExecuteLoopBody" block.
-- After executing the loop body, any necessary variable updates are performed (e.g., incrementing a counter) at the "UpdateLoopVariables" block.
-- Control then proceeds to the "ConditionEvaluation" block, where the condition is checked.
-- If the condition is true, control returns to the "ExecuteLoopBody" block, and the loop body is executed again.
-- This process continues until the condition becomes false, at which point the loop terminates, and control passes to the "EndLoop" block.
-
-This flowchart represents the structure of a `do-while` loop, where the loop body is executed at least once before checking the loop condition.
-
-
-# 7. Example 2: Display Numbers from 1 to 5
+### Example 2: Display Numbers from 1 to 5
 
 ```cpp
 #include <iostream>
 
 int main() {
-    int num = 1;
-
+    int i = 1;
     do {
-        std::cout << num << " ";
-        num++;
-    } while (num <= 5);
-
+        std::cout << i << std::endl;
+        i++;
+    } while (i <= 5);
     return 0;
 }
 ```
-