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While Loops

While Loops

graph LR

  A(Start) --> B[Initialize Variables];
  B --> C{Condition};
  C --> |True| D[Execute Loop Body];
  D --> E[Update Variables];
  E --> C;
  C --> |False| F(End);

  style A fill:#f00,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
  style F fill:#00f,color:white,font-weight:bold,stroke-width:2px,stroke:yellow

  subgraph Initialize_Variables
    B[Initialization]
  end

  subgraph Loop_Condition
    C{Condition}
  end

  subgraph Execute_Loop_Body
    D[Loop Body]
  end

  subgraph Update_Variables
    E[Update]
  end

  style Initialize_Variables fill:##FC33FF,stroke:#FF6E40,stroke-width:5px;
  style Loop_Condition fill:##FC33FF,stroke:#3A9D23,stroke-width:5px;
  style Execute_Loop_Body fill:##FC33FF,stroke:#4D5BFF,stroke-width:5px;
  style Update_Variables fill:##FC33FF,stroke:#FF406A,stroke-width:5px;

Do-While Loops

graph LR

  A(Start) --> B[Initialize Variables];
  B --> C(Loop Start);
  C --> D{Condition};
  D --> |True| E[Execute Loop Body];
  E --> F(End Loop);
  F --> G{Continue Loop?};
  G --> |True| D;
  G --> |False| H(End);

  style A fill:#f00,color:white,font-weight:bold,stroke-width:2px,stroke:yellow
  style H fill:#00f,color:white,font-weight:bold,stroke-width:2px,stroke:yellow

  subgraph Initialize_Variables
    B[Variables]
  end

  subgraph Loop_Start
    C(Do)
  end

  subgraph Condition
    D{Condition}
  end

  subgraph Execute_Loop_Body
    E[Execute Do Body]
  end

  subgraph End_Loop
    F(Do Loop)
  end

  subgraph Continue_Loop
    G{Continue Loop?}
  end

  style Initialize_Variables fill:##FC33FF,stroke:#FF6E40,stroke-width:5px;
  style Loop_Start fill:##FC33FF,stroke:#3A9D23,stroke-width:5px;
  style Condition fill:##FC33FF,stroke:#3A9D23,stroke-width:5px;
  style Execute_Loop_Body fill:##FC33FF,stroke:#4D5BFF,stroke-width:5px;
  style End_Loop fill:##FC33FF,stroke:#FF406A,stroke-width:5px;
  style Continue_Loop fill:##FC33FF,stroke:#4D5BFF,stroke-width:5px;

While

Sum of 10 Numbers.cpp

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#include<bits/stdc++.h>
using namespace std;

int main() {
    int sum=0;
    int n=1;
    while(n <= 10) {
        sum += n;
        n++;
    }  
    cout << sum;
    return 0;
}

Output: 55

Do-While

Sum of 10 Numbers.cpp

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#include<bits/stdc++.h>
using namespace std;

int main() {
    int sum=0;
    int n=1;
    do {
        sum += n;
        n++;
    } while(n <= 10);
    cout << sum;
    return 0;
}

Output: 55