@[_ZZH](/space/show?uid=27398) %%%大佬，我就写了24行（滑稽）
by 引领天下 @ 2018-08-06 16:12:43
@[引领天下](/space/show?uid=39863) 啊！太强了，orz。可能是我太弱了……
by _ZZH @ 2018-08-06 16:21:18
@[_ZZH](/space/show?uid=27398) 不不不我是蒟蒻反%
by 引领天下 @ 2018-08-06 16:29:59
@[_ZZH](/space/show?uid=27398) 码农大佬orz
by 引领天下 @ 2018-08-06 16:30:12
@[引领天下](/space/show?uid=39863) ……
by _ZZH @ 2018-08-06 16:36:03
@[引领天下](/space/show?uid=39863) 码农大佬什么鬼……orz
by _ZZH @ 2018-08-06 16:37:32
@[_ZZH](/space/show?uid=27398) 150行代码还不是码农吗……（可能是我太弱了）
by 引领天下 @ 2018-08-06 16:42:02
# 嘤
by dagggg @ 2018-08-06 19:50:35
我200行
```
#include<bits/stdc++.h>
using namespace std;
char a[10000];
int a1[10000];
int main(){
cin>>a;
int len;
len=strlen(a);
char x;
for(int i=0;i<len;i++)
{
if(a[i]<='z'&&a[i]>='a')
{
x=a[i];
}
}
//cout<<x;
double a2=0;
int ab=1;
int equal=0;
int ac=0;
char af;
int s=0;
for(int i=len-1;i>=0;i--)
{
if(a[i]=='=')
{
equal=i;
}
}
for(int i=equal;i>=0;i--)
{
ab=1;
ac=0;
s=0;
if(a[i]==x)
{
//cout<<"yes"<<endl;
for(int j=i-1;j>=0;j--)
{
if(a[j]>=48&&a[j]<=57)
{
s=s+(a[j]-48)*ab;
ab*=10;
ac++;
//cout<<"1"<<endl;
}
else if(a[j]=='-')
{
s=-1*s;//cout<<"fu"<<endl;
break;
}
else if(a[j]=='+')
{
s=s;//cout<<"zheng"<<endl;
break;
}
}
if(a[i-1]>57||a[i-1]<48)
{
if(a[i-1]=='-')
{
s--;
}
else if(a[i-1]=='+')
{
s++;
}
else s++;
}
a2=a2+s;
}
}
for(int i=len-1;i>=equal;i--)
{
ab=1;
ac=0;
s=0;
if(a[i]==x)
{
//cout<<"yes"<<endl;
for(int j=i-1;j>=equal;j--)
{
if(a[j]>=48&&a[j]<=57)
{
s=s+(a[j]-48)*ab;
ab*=10;
ac++;
//cout<<"1"<<endl;
}
else if(a[j]=='-')
{
s=-1*s;//cout<<"fu"<<endl;
break;
}
else if(a[j]=='+')
{
s=s;//cout<<"zheng"<<endl;
break;
}
}
if(a[i-1]>57||a[i-1]<48)
{
if(a[i-1]=='-')
{
s--;
}
else if(a[i-1]=='+')
{
s++;
}
else s++;
}
a2=a2-s;
}
}
//cout<<a2/*<<x*/;
//系数算完，接下来算常数！;
double b2=0;
int bb=1;
for(int i=equal;i>=0;i--)
{
bb=1;
s=0;
if(a[i]>=48&&a[i]<=57&&a[i+1]!=x)
{
if(a[i+1]=='-'||a[i+1]=='+'||a[i+1]=='='||a[i+2]=='-'||a[i+2]=='+'||a[i+2]=='='||a[i+2]!=x)
{
//cout<<"yes"<<endl;
for(int j=i;j>=0;j--)
{
if(a[j]>=48&&a[j]<=57)
{
s=s+(a[j]-48)*bb;
bb*=10; i--;
//cout<<"1"<<endl;
}
else if(a[j]=='-')
{
if(s!=0)s=-1*s;//cout<<"fu"<<endl;
break;
}
else if(a[j]=='+')
{
s=s;//cout<<"zheng"<<endl;
break;
}
}
b2=b2-s;
}
}
}
for(int i=len-1;i>=equal;i--)
{
bb=1;
s=0;
if(a[i]>=48&&a[i]<=57&&a[i+1]!=x)
{
if(a[i+1]=='-'||a[i+1]=='+'||a[i+1]=='='||a[i+2]=='-'||a[i+2]=='+'||a[i+2]=='='||a[i+2]!=x)
{
//cout<<"yes"<<endl;
for(int j=i;j>=equal;j--)
{
if(a[j]>=48&&a[j]<=57)
{
s=s+(a[j]-48)*bb;
bb*=10; i--;
//cout<<"1"<<endl;
}
else if(a[j]=='-')
{
if(s!=0)s=-1*s;//cout<<"fu"<<endl;
break;
}
else if(a[j]=='+')
{
s=s;//cout<<"zheng"<<endl;
break;
}
}
b2=b2+s;
}
}
}
double H;
if(b2!=0&&a2!=0)H=b2/a2;
//cout<<a2<<" "<<b2;
cout<<x<<"=";
if(H==0){cout<<"0.000";return 0;}
printf("%.3f",H);//完美的结局！
return 0;
}
```
by LinAPro @ 2018-08-18 20:51:57
@[silenceabu](/space/show?uid=68163) %%%%%%
by 犇犇犇犇 @ 2018-09-23 09:58:07