Package g2201_2300.s2283_check_if_number_has_equal_digit_count_and_digit_value

Class Solution

java.lang.Object

g2201_2300.s2283_check_if_number_has_equal_digit_count_and_digit_value.Solution

public class Solution
extends Object

2283 - Check if Number Has Equal Digit Count and Digit Value.<p>Easy</p> <p>You are given a <strong>0-indexed</strong> string <code>num</code> of length <code>n</code> consisting of digits.</p> <p>Return <code>true</code> <em>if for <strong>every</strong> index</em> <code>i</code> <em>in the range</em> <code>0 <= i < n</code><em>, the digit</em> <code>i</code> <em>occurs</em> <code>num[i]</code> <em>times in</em> <code>num</code><em>, otherwise return</em> <code>false</code>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> num = &ldquo;1210&rdquo;</p> <p><strong>Output:</strong> true</p> <p><strong>Explanation:</strong></p> <p>num[0] = &lsquo;1&rsquo;. The digit 0 occurs once in num.</p> <p>num[1] = &lsquo;2&rsquo;. The digit 1 occurs twice in num.</p> <p>num[2] = &lsquo;1&rsquo;. The digit 2 occurs once in num.</p> <p>num[3] = &lsquo;0&rsquo;. The digit 3 occurs zero times in num.</p> <p>The condition holds true for every index in &ldquo;1210&rdquo;, so return true.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> num = &ldquo;030&rdquo;</p> <p><strong>Output:</strong> false</p> <p><strong>Explanation:</strong></p> <p>num[0] = &lsquo;0&rsquo;. The digit 0 should occur zero times, but actually occurs twice in num.</p> <p>num[1] = &lsquo;3&rsquo;. The digit 1 should occur three times, but actually occurs zero times in num.</p> <p>num[2] = &lsquo;0&rsquo;. The digit 2 occurs zero times in num.</p> <p>The indices 0 and 1 both violate the condition, so return false.</p> <p><strong>Constraints:</strong></p> <ul> <li><code>n == num.length</code></li> <li><code>1 <= n <= 10</code></li> <li><code>num</code> consists of digits.</li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
boolean	digitCount(String num)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

digitCount

public boolean digitCount(String num)