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43 lines
1.5 KiB
HTML
43 lines
1.5 KiB
HTML
<p>You are given a string <code>num</code> consisting of only digits. A string of digits is called <b>balanced </b>if the sum of the digits at even indices is equal to the sum of digits at odd indices.</p>
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<p>Return <code>true</code> if <code>num</code> is <strong>balanced</strong>, otherwise return <code>false</code>.</p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<div class="example-block">
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<p><strong>Input:</strong> num<span class="example-io"> = "1234"</span></p>
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<p><strong>Output:</strong> <span class="example-io">false</span></p>
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<p><strong>Explanation:</strong></p>
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<ul>
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<li>The sum of digits at even indices is <code>1 + 3 == 4</code>, and the sum of digits at odd indices is <code>2 + 4 == 6</code>.</li>
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<li>Since 4 is not equal to 6, <code>num</code> is not balanced.</li>
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</ul>
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</div>
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<p><strong class="example">Example 2:</strong></p>
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<div class="example-block">
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<p><strong>Input:</strong> num<span class="example-io"> = "24123"</span></p>
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<p><strong>Output:</strong> true</p>
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<p><strong>Explanation:</strong></p>
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<ul>
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<li>The sum of digits at even indices is <code>2 + 1 + 3 == 6</code>, and the sum of digits at odd indices is <code>4 + 2 == 6</code>.</li>
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<li>Since both are equal the <code>num</code> is balanced.</li>
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</ul>
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</div>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>2 <= num.length <= 100</code></li>
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<li><code><font face="monospace">num</font></code> consists of digits only</li>
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</ul>
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