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万绿丛中一点红
<div class="ques-view"><p>对于计算机而言，颜色不过是像素点对应的一个 24 位的数值。现给定一幅分辨率为 <span class="katex"><span class="katex-mathml"><math><mrow><mi>M</mi><mo>×</mo><mi>N</mi></mrow>M\times N</math></span><span aria-hidden="true" class="katex-html"><span class="strut" style="height:0.68333em;"></span><span class="strut bottom" style="height:0.76666em;vertical-align:-0.08333em;"></span><span class="base textstyle uncramped"><span class="mord mathit" style="margin-right:0.10903em;">M</span><span class="mbin">×</span><span class="mord mathit" style="margin-right:0.10903em;">N</span></span></span></span> 的画，要求你找出万绿丛中的一点红，即有独一无二颜色的那个像素点，并且该点的颜色与其周围 8 个相邻像素的颜色差充分大。</p>
<h3 id="-">输入格式：</h3>
<p>输入第一行给出三个正整数，分别是 <span class="katex"><span class="katex-mathml"><math><mrow><mi>M</mi></mrow>M</math></span><span aria-hidden="true" class="katex-html"><span class="strut" style="height:0.68333em;"></span><span class="strut bottom" style="height:0.68333em;vertical-align:0em;"></span><span class="base textstyle uncramped"><span class="mord mathit" style="margin-right:0.10903em;">M</span></span></span></span> 和 <span class="katex"><span class="katex-mathml"><math><mrow><mi>N</mi></mrow>N</math></span><span aria-hidden="true" class="katex-html"><span class="strut" style="height:0.68333em;"></span><span class="strut bottom" style="height:0.68333em;vertical-align:0em;"></span><span class="base textstyle uncramped"><span class="mord mathit" style="margin-right:0.10903em;">N</span></span></span></span>（<span class="katex"><span class="katex-mathml"><math><mrow><mo>≤</mo></mrow>\le</math></span><span aria-hidden="true" class="katex-html"><span class="strut" style="height:0.63597em;"></span><span class="strut bottom" style="height:0.7719400000000001em;vertical-align:-0.13597em;"></span><span class="base textstyle uncramped"><span class="mrel">≤</span></span></span></span> 1000），即图像的分辨率；以及 TOL，是所求像素点与相邻点的颜色差阈值，色差超过 TOL 的点才被考虑。随后 <span class="katex"><span class="katex-mathml"><math><mrow><mi>N</mi></mrow>N</math></span><span aria-hidden="true" class="katex-html"><span class="strut" style="height:0.68333em;"></span><span class="strut bottom" style="height:0.68333em;vertical-align:0em;"></span><span class="base textstyle uncramped"><span class="mord mathit" style="margin-right:0.10903em;">N</span></span></span></span> 行，每行给出 <span class="katex"><span class="katex-mathml"><math><mrow><mi>M</mi></mrow>M</math></span><span aria-hidden="true" class="katex-html"><span class="strut" style="height:0.68333em;"></span><span class="strut bottom" style="height:0.68333em;vertical-align:0em;"></span><span class="base textstyle uncramped"><span class="mord mathit" style="margin-right:0.10903em;">M</span></span></span></span> 个像素的颜色值，范围在 <span class="katex"><span class="katex-mathml"><math><mrow><mo>[</mo><mn>0</mn><mo separator="true">,</mo><msup><mn>2</mn><mrow><mn>2</mn><mn>4</mn></mrow></msup><mo>)</mo></mrow>[0, 2^{24})</math></span><span aria-hidden="true" class="katex-html"><span class="strut" style="height:0.8141079999999999em;"></span><span class="strut bottom" style="height:1.064108em;vertical-align:-0.25em;"></span><span class="base textstyle uncramped"><span class="mopen">[</span><span class="mord mathrm">0</span><span class="mpunct">,</span><span class="mord"><span class="mord mathrm">2</span><span class="msupsub"><span class="vlist"><span style="top:-0.363em;margin-right:0.05em;"><span class="fontsize-ensurer reset-size5 size5"><span style="font-size:0em;">​</span></span><span class="reset-textstyle scriptstyle uncramped mtight"><span class="mord scriptstyle uncramped mtight"><span class="mord mathrm mtight">2</span><span class="mord mathrm mtight">4</span></span></span></span><span class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span style="font-size:0em;">​</span></span>​</span></span></span></span><span class="mclose">)</span></span></span></span> 内。所有同行数字间用空格或 TAB 分开。</p>
<h3 id="-">输出格式：</h3>
<p>在一行中按照 <code>(x, y): color</code> 的格式输出所求像素点的位置以及颜色值，其中位置 <code>x</code> 和 <code>y</code> 分别是该像素在图像矩阵中的列、行编号（从 1 开始编号）。如果这样的点不唯一，则输出 <code>Not Unique</code>；如果这样的点不存在，则输出 <code>Not Exist</code>。</p>
<h3 id="-1-">输入样例 1：</h3>
<pre><code class="lang-in">8 6 200
0 0 0 0 0 0 0 0
65280 65280 65280 16711479 65280 65280 65280 65280
16711479 65280 65280 65280 16711680 65280 65280 65280
65280 65280 65280 65280 65280 65280 165280 165280
65280 65280 16777015 65280 65280 165280 65480 165280
16777215 16777215 16777215 16777215 16777215 16777215 16777215 16777215
</code></pre>
<h3 id="-1-">输出样例 1：</h3>
<pre><code class="lang-out">(5, 3): 16711680
</code></pre>
<h3 id="-2-">输入样例 2：</h3>
<pre><code class="lang-in">4 5 2
0 0 0 0
0 0 3 0
0 0 0 0
0 5 0 0
0 0 0 0
</code></pre>
<h3 id="-2-">输出样例 2：</h3>
<pre><code class="lang-out">Not Unique
</code></pre>
<h3 id="-3-">输入样例 3：</h3>
<pre><code class="lang-in">3 3 5
1 2 3
3 4 5
5 6 7
</code></pre>
<h3 id="-3-">输出样例 3：</h3>
<pre><code class="lang-out">Not Exist
</code></pre>
</div>
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