Answer / Sonika Dubey

While and do-while loops are both control structures used for repetition in C++. The main difference between them lies in their execution behavior.nn1) While Loop: The while loop checks the condition at the beginning of the loop. If the condition is true, then the body of the loop is executed; otherwise, the loop terminates immediately without executing the loop body.nnExample:n```cppnint i = 0;nwhile (i < 5) {n cout << i << endl;n i++;n}n```n2) Do-While Loop: The do-while loop checks the condition at the end of the loop. Regardless of whether the condition is true or false, the body of the do-while loop is executed at least once before checking the condition.nnExample:n```cppndo {n cout << i << endl;n i++;n} while (i < 5);n```

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