?? acm常用代碼.mht
字號:
esult[k]=3Dsum%10;<br>
k=
=3Dk+1;<br>
s=
um=3Dsum/10;<br>
}<o:p></o:p></span></p>
<p><span lang=3DEN-US style=3D'font-size:9.0pt;color:black'> &=
nbsp; </span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>for</span><span lang=3D=
EN-US
style=3D'font-size:9.0pt;color:black'> (i=3Dblen-2;i>=3D0;i--)<br>
{<br>
<=
/span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>for</span><span lang=3D=
EN-US
style=3D'font-size:9.0pt;color:black'> (j=3D0;j<=3Di;j++) sum=3Dsum+re=
s[i-j][j];<br>
r=
esult[k]=3Dsum%10;<br>
k=
=3Dk+1;<br>
s=
um=3Dsum/10;<br>
}<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>if</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'>
(sum!=3D0) {result[k]=3Dsum;k=3Dk+1;}<o:p></o:p></span></p>
<p><span lang=3DEN-US style=3D'font-size:9.0pt;color:black'> &=
nbsp; </span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>for</span><span lang=3D=
EN-US
style=3D'font-size:9.0pt;color:black'> (i=3D0;i<k;i++) result[i]+=3D'0=
';<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>for</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:b=
lack'>
(i=3Dk-1;i>=3D0;i--) s[i]=3Dresult[k-1-i];<br>
s[k]=3D'\0';<o:p></o:p></span></p>
<p><span lang=3DEN-US style=3D'font-size:9.0pt;color:black'> &=
nbsp; </span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>while</span><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'>(1)<br>
{<br>
</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:blue'>if</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'>
(strlen(s)!=3Dstrlen(a)&&s[0]=3D=3D'0') <br>
s=
trcpy(s,s+1);<br>
</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:blue'>else</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'><br>
<=
/span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>break</span><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'>;<br>
}<br>
}<o:p></o:p></span></p>
</td>
</tr>
</table>
</div>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:blac=
k'><o:p> </o:p></span></p>
<p><a name=3D4></a><span lang=3DEN-US style=3D'font-size:9.0pt;color:black'=
>4.精度计算——加法<o:p></o:p=
></span></p>
<div align=3Dcenter>
<table class=3DMsoNormalTable border=3D0 cellspacing=3D5 cellpadding=3D0 wi=
dth=3D"80%"
style=3D'width:80.0%;mso-cellspacing:3.7pt;mso-padding-alt:0cm 0cm 0cm 0cm=
'>
<tr style=3D'mso-yfti-irow:0'>
<td colspan=3D2 style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:#3366FF'>෾=
1;法：</span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:black'>add(</span><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:blue'>char</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'> a[],</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:blue'>char</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'> b[],</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:blue'>char</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'> s[]);<o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:1'>
<td colspan=3D2 style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:#3366FF'>ࡠ=
2;数：</span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:black'><o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:2'>
<td width=3D"12%" style=3D'width:12.0%;padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal align=3Dright style=3D'text-align:right'><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'>a[]：<o:p></o:p></span></p>
</td>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:black'>被=
乘数，用字符串表示=
5292;位数不限<span
lang=3DEN-US><o:p></o:p></span></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:3'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal align=3Dright style=3D'text-align:right'><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'>b[]：<o:p></o:p></span></p>
</td>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:black'>乘=
数，用字符串表示，=
0301;数不限<span
lang=3DEN-US><o:p></o:p></span></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:4'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal align=3Dright style=3D'text-align:right'><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'>t[]：<o:p></o:p></span></p>
</td>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:black'>结=
果，用字符串表示<span
lang=3DEN-US><o:p></o:p></span></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:5'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal align=3Dright style=3D'text-align:right'><span
style=3D'font-size:9.0pt;color:black'>返回值：<sp=
an
lang=3DEN-US><o:p></o:p></span></span></p>
</td>
<td width=3D"88%" style=3D'width:88.0%;padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'>null<o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:6'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:#3366FF'>૤=
0;意：</span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:black'><o:p></o:p></span></p>
</td>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'> <o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:7'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'> <o:p></o:p></span></p>
</td>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:black'>空=
间复杂度为<span
lang=3DEN-US> o(n^2)<o:p></o:p></span></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:8'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'> <o:p></o:p></span></p>
</td>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:black'>需=
要
<span lang=3DEN-US>string.h<o:p></o:p></span></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:9'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:#3366FF'>଎=
4;程序：</span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:black'><o:p></o:p></span></p>
</td>
<td width=3D"88%" style=3D'width:88.0%;padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'> <o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:10;mso-yfti-lastrow:yes'>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'> <o:p></o:p></span></p>
</td>
<td style=3D'padding:0cm 0cm 0cm 0cm'>
<p><span lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>void</span><sp=
an
lang=3DEN-US style=3D'font-size:9.0pt;color:black'> add(</span><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:blue'>char</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'> a[],</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:blue'>char</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'> b[],</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:blue'>char</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'> back[])<br>
{<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>int</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:b=
lack'>
i,j,k,up,x,y,z,l;<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>char</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:=
black'>
*c;<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>if</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'>
(strlen(a)>strlen(b)) l=3Dstrlen(a)+2; </span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:blue'>else</span><span lang=3DEN-US
style=3D'font-size:9.0pt;color:black'> l=3Dstrlen(b)+2;<br>
c=3D(</span><span lang=3DEN-US style=3D'font-size=
:9.0pt;
color:blue'>char</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:=
black'>
*) malloc(l*sizeof(</span><span lang=3DEN-US style=3D'font-size:9.0pt;col=
or:blue'>char</span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:black'>));<br>
i=3Dstrlen(a)-1;<br>
j=3Dstrlen(b)-1;<br>
k=3D0;up=3D0;<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>while</span><span lang=3DEN-US style=3D'font-size:9.0pt;color=
:black'>(i>=3D0||j>=3D0)<br>
{<br>
<=
/span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>if</span><span lang=3DE=
N-US
style=3D'font-size:9.0pt;color:black'>(i<0) x=3D'0'; </span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>else</span><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'> x=3Da[i];<br>
<=
/span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>if</span><span lang=3DE=
N-US
style=3D'font-size:9.0pt;color:black'>(j<0) y=3D'0'; </span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>else</span><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'> y=3Db[j];<br>
z=
=3Dx-'0'+y-'0';<br>
<=
/span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>if</span><span lang=3DE=
N-US
style=3D'font-size:9.0pt;color:black'>(up) z+=3D1;<br>
<=
/span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>if</span><span lang=3DE=
N-US
style=3D'font-size:9.0pt;color:black'>(z>9) {up=3D1;z%=3D10;} </s=
pan><span
lang=3DEN-US style=3D'font-size:9.0pt;color:blue'>else</span><span lang=
=3DEN-US
style=3D'font-size:9.0pt;color:black'> up=3D0;<br>
c=
[k++]=3Dz+'0';<br>
i=
--;j--;<br>
}<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>if</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:bl=
ack'>(up)
c[k++]=3D'1';<br>
i=3D0;<br>
c[k]=3D'\0';<br>
</span><span lang=3DEN-US style=3D'font-size:9.0p=
t;
color:blue'>for</span><span lang=3DEN-US style=3D'font-size:9.0pt;color:b=
lack'>(k-=3D1;k>=3D0;k--)<br>
back[i++]=3Dc[k];<br>
back[i]=3D'\0';<br>
} <o:p></o:p></span></p>
</td>
</tr>
</table>
</div>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:9.0pt;color:blac=
k'><o:p> </o:p></span></p>
<p><a name=3D5></a><span lang=3DEN-US style=3D'font-size:9.0pt;color:black'=
>5.精度计算——减法<o:p></o:p=
></span></p>
<div align=3Dcenter>
<table class=3DMsoNormalTable border=3D0 cellspacing=3D5 cellpadding=3D0 wi=
dth=3D"80%"
style=3D'width:80.0%;mso-cellspacing:3.7pt;mso-padding-alt:0cm 0cm 0cm 0cm=
'>
<tr style=3D'mso-yfti-irow:0'>
<td colspan=3D2 style=3D'padding:0cm 0cm 0cm 0cm'>
<p class=3DMsoNormal><span style=3D'font-size:9.0pt;color:#3366FF'>෾=
1;法：</span><span
lang=3DEN-US style=3D'font-size:9.0pt;color:black'>sub(</span><span lang=
=3?? 快捷鍵說明
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