void jia(){
char a1[101],b1[101];
int a[101],b[101],c[10001],lena,lenb,lenc,i,j,x;
memset(a,0,sizeof(a));
memset(b,0,sizeof(b));
memset(c,0,sizeof(c));
cout<<"加数1:";scanf("%s",a1);
cout<<"加数2:";scanf("%s",b1);
lena=strlen(a1);
lenb=strlen(b1);
for (i=0;i<=lena-1;i++) a[lena-i]=a1[i]-48;
for (i=0;i<=lenb-1;i++) b[lenb-i]=b1[i]-48;
lenc =1;
x=0;
while (lenc <=lena||lenc<=lenb)
{ c[lenc]=a[lenc]+b[lenc]+x;
x=c[lenc]/10;
c[lenc]%=10;
lenc++;
}
c[lenc]=x;
if (c[lenc]==0) lenc--;
for (i=lenc;i>=1;i--){cout<<"和为:";cout<<c[i];}
cout<<endl;
}