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<title>贪婪（贪心）算法 Greedy Algorithm </title>
<meta name=Description content="2005/9/19: 2.1.4 级数求和 ：">
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<div v:shape="_x0000_s34818" class=T style='position:absolute;top:9.0%;
left:14.41%;width:83.14%;height:9.25%'><span lang=ZH-CN style='font-family:
"Times New Roman";mso-ascii-font-family:"Times New Roman";color:yellow;
mso-ansi-language:EN-US'>2.1.4 </span><span lang=ZH-CN style='color:yellow;
mso-ansi-language:EN-US'>级数求和</span><span lang=ZH-CN style='font-family:"Times New Roman";
mso-ascii-font-family:"Times New Roman";color:yellow;mso-ansi-language:EN-US'>
</span><span lang=ZH-CN style='color:yellow;mso-ansi-language:EN-US'>：</span></div>
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<div style='mso-line-spacing:"90 20 0";position:absolute;top:23.75%;
left:14.41%;width:95.5%;height:7.5%'><span style='position:absolute;
top:0%;left:3.92%;width:96.07%'><span style='font-size:113%;color:yellow'><span
style='mso-special-format:bullet;color:#FFCC66;mso-color-index:3;position:
absolute;left:-4.08%;top:.1em;font-family:Symbol;font-size:90%'>¨</span></span><span
lang=ZH-CN style='font-size:113%;color:yellow;mso-ansi-language:EN-US'>级数求和公式：</span><span
lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
font-size:113%;color:yellow;mso-ansi-language:EN-US'><span style='mso-tab-count:
4;width:34.05%'> </span>P36<span style='mso-tab-count:1;width:2.42%'> </span> </span></span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:33.0%;left:14.41%;
width:83.14%;height:6.25%'><span style='mso-special-format:nobullet;
display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
90%'>¨</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
宋体;mso-ansi-language:EN-US'><span style='mso-tab-count:1;width:4.51%'> </span>1、算术级数 </span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:40.75%;
left:14.41%;width:83.14%;height:6.25%'><span style='mso-special-format:nobullet;
display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
90%'>¨</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
宋体;mso-ansi-language:EN-US'><span style='mso-tab-count:1;width:4.51%'> </span>2、平方和 </span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:48.75%;
left:14.41%;width:83.14%;height:6.25%'><span style='mso-special-format:nobullet;
display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
90%'>¨</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
宋体;mso-ansi-language:EN-US'><span style='mso-tab-count:1;width:4.51%'> </span>3、几何级数 </span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:56.25%;
left:14.41%;width:83.14%;height:5.5%'><span style='mso-special-format:nobullet;
display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
90%'>¨</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
宋体;font-size:88%;mso-ansi-language:EN-US'><span style='mso-tab-count:2;
width:12.02%'> </span>基本型：a ≠ 1 ；|a| < 1 </span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:63.0%;left:14.41%;
width:83.14%;height:5.5%'><span style='mso-special-format:nobullet;display:
none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:90%'>¨</span><span
lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:88%;
mso-fareast-language:ZH-CN'><span style='mso-tab-count:2;width:12.02%'> </span>扩展型：a
≠ 1 ；|a| < 1 </span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:70.25%;
left:14.41%;width:83.14%;height:6.25%'><span style='mso-special-format:nobullet;
display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
90%'>¨</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
宋体;font-size:88%;mso-ansi-language:EN-US'><span style='mso-tab-count:1;
width:4.51%'> </span></span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
宋体;mso-ansi-language:EN-US'>4、调和级数 </span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:77.5%;left:14.41%;
width:83.14%;height:7.5%'><span style='mso-special-format:nobullet;display:
none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:90%'>¨</span><span
lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
font-size:113%;color:yellow;mso-ansi-language:EN-US'><span style='mso-tab-count:
2;width:12.02%'> </span></span><span lang=ZH-CN style='font-size:88%;
mso-ansi-language:EN-US'>调和级数不等式 </span></div>
<div style='mso-line-spacing:"90 20 0";position:absolute;top:87.0%;left:14.41%;
width:83.14%;height:7.0%'><span style='mso-special-format:nobullet;display:
none;font-family:Symbol;font-size:90%'>¨</span><span lang=ZH-CN
style='font-size:113%;color:#FFCC66;mso-color-index:3;mso-ansi-language:EN-US'>注：在算法分析的推导中常用</span></div>
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