# Check if two numbers have same number of digits

Given two integers **A** and **B**, the task is to check whether both the numbers have an equal number of digits.**Examples:**

Input:A = 12, B = 1Output:NoInput:A = 20, B = 99Output:Yes

**Approach:** While both the numbers are > 0, keep dividing both the numbers by 10. Finally, check if both the numbers are 0. If any one of them is not 0 then they had an unequal numbers of digits.

Below is the implementation of the above approach:

## C++

`// C++ implementation of the approach` `#include <bits/stdc++.h>` `using` `namespace` `std;` `// Function that return true if A and B` `// have same number of digits` `bool` `sameLength(` `int` `A, ` `int` `B)` `{` ` ` `while` `(A > 0 && B > 0) {` ` ` `A = A / 10;` ` ` `B = B / 10;` ` ` `}` ` ` `// Both must be 0 now if` ` ` `// they had same lengths` ` ` `if` `(A == 0 && B == 0)` ` ` `return` `true` `;` ` ` `return` `false` `;` `}` `// Driver code` `int` `main()` `{` ` ` `int` `A = 21, B = 1;` ` ` `if` `(sameLength(A, B))` ` ` `cout << ` `"Yes"` `;` ` ` `else` ` ` `cout << ` `"No"` `;` ` ` `return` `0;` `}` |

## Java

`// Java implementation of the approach` `import` `java.io.*;` `class` `GFG` `{` ` ` `// Function that return true if A and B` `// have same number of digits` `static` `boolean` `sameLength(` `int` `A, ` `int` `B)` `{` ` ` `while` `((A > ` `0` `) && (B > ` `0` `))` ` ` `{` ` ` `A = A / ` `10` `;` ` ` `B = B / ` `10` `;` ` ` `}` ` ` `// Both must be 0 now if` ` ` `// they had same lengths` ` ` `if` `((A == ` `0` `)&& (B == ` `0` `))` ` ` `return` `true` `;` ` ` `return` `false` `;` `}` `// Driver code` `public` `static` `void` `main (String[] args)` `{` ` ` `int` `A = ` `21` `, B = ` `1` `;` ` ` `if` `(sameLength(A, B))` ` ` `System.out.println (` `"Yes"` `);` ` ` `else` ` ` `System.out.println(` `"No"` `);` `}` `}` `// This code is contributed by @tushil.` |

## Python3

` ` `# Python implementation of the approach` `# Function that return true if A and B` `# have same number of digits` `def` `sameLength(A, B):` ` ` `while` `(A > ` `0` `and` `B > ` `0` `):` ` ` `A ` `=` `A ` `/` `10` `;` ` ` `B ` `=` `B ` `/` `10` `;` ` ` `# Both must be 0 now if` ` ` `# they had same lengths` ` ` `if` `(A ` `=` `=` `0` `and` `B ` `=` `=` `0` `):` ` ` `return` `True` `;` ` ` `return` `False` `;` `# Driver code` `A ` `=` `21` `; B ` `=` `1` `;` `if` `(sameLength(A, B)):` ` ` `print` `(` `"Yes"` `);` `else` `:` ` ` `print` `(` `"No"` `);` `# This code contributed by PrinciRaj1992` |

## C#

`// C# implementation of the approach` `using` `System;` `class` `GFG` `{` ` ` `// Function that return true if A and B` `// have same number of digits` `static` `bool` `sameLength(` `int` `A, ` `int` `B)` `{` ` ` `while` `((A > 0) && (B > 0))` ` ` `{` ` ` `A = A / 10;` ` ` `B = B / 10;` ` ` `}` ` ` `// Both must be 0 now if` ` ` `// they had same lengths` ` ` `if` `((A == 0 )&& (B == 0))` ` ` `return` `true` `;` ` ` `return` `false` `;` `}` `// Driver code` `static` `public` `void` `Main ()` `{` ` ` ` ` `int` `A = 21, B = 1;` ` ` `if` `(sameLength(A, B))` ` ` `Console.WriteLine(` `"Yes"` `);` ` ` `else` ` ` `Console.WriteLine(` `"No"` `);` `}` `}` `// This code is contributed by ajit..` |

## Javascript

`<script>` `// Javascript implementation of the approach` `// Function that return true if A and B` `// have same number of digits` `function` `sameLength(A, B)` `{` ` ` `while` `(A > 0 && B > 0) {` ` ` `A = parseInt(A / 10);` ` ` `B = parseInt(B / 10);` ` ` `}` ` ` `// Both must be 0 now if` ` ` `// they had same lengths` ` ` `if` `(A == 0 && B == 0)` ` ` `return` `true` `;` ` ` `return` `false` `;` `}` `// Driver code` ` ` `let A = 21, B = 1;` ` ` `if` `(sameLength(A, B))` ` ` `document.write(` `"Yes"` `);` ` ` `else` ` ` `document.write(` `"No"` `);` `</script>` |

**Output:**

No