代码写错了
666
by 已注销hUjZvzYv @ 2023-03-05 13:12:02
```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin>>n;
int x[n],y[n];
char c[n];
for(int i=0;i<n;++i){
string a;
cin>>a;
if(a[0]>='a'){
cin>>x[i]>>y[i];
c[i]=a[0];
}
else{
int l=a.size(),j=0;x[i]=0;
while(j<l){
x[i]=x[i]*10+(a[j]-'0');
++j;}
cin>>y[i];
c[i]=c[i-1];
}
}
for(int i=0;i<n;++i){
int s,e,f=1;
if(c[i]=='a'){
s=x[i]+y[i];
e=abs(s);
while(e>=10){
e/=10;++f;
}
printf("%d+%d=%d\n",x[i],y[i],s);
}
else if(c[i]=='b'){
s=x[i]-y[i];
e=abs(s);
while(e>=10){
e/=10;++f;
}
printf("%d-%d=%d\n",x[i],y[i],s);
}
else{
s=x[i]*y[i];
e=abs(s);
while(e>=10){
e/=10;++f;
}
printf("%d*%d=%d\n",x[i],y[i],s);
}
if(s<0)++f;
while(x[i]>=10){
x[i]/=10;++f;
}
while(y[i]>=10){
y[i]/=10;++f;
}
printf("%d\n",f+4);
}
}
```
用getline会从第一行开始读，过不了
by Zbc20211226 @ 2023-03-19 19:33:27