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| #include<iostream>
#include<string>
#include<sstream>
#include<map>
using namespace std;
string s0,s,s1,s2,left_value,right_value;
int bug;
map<string,unsigned int>a;
map<string,string>value;
string get_value(string x,string arr){
unsigned int t=0;
string y,z;
if(x.find("[")==string::npos){
stringstream ss(x);
ss>>t;
if(arr!=s0&&t>=a[arr]) bug=1;
return x;
}
y=x.substr(0,x.find("["));
z=x.substr(x.find("[")+1,x.find_last_of("]")-2);
z=get_value(z,y);
if(bug) return s0;
x=y+"["+z+"]";
if(!value.count(x)) bug=1;
return value[x];
}
void get_arr(){
string x,y;
unsigned int z;
x=s.substr(0,s.find("["));
y=s.substr(s.find("[")+1,s.find_last_of("]")-2);
y=get_value(y,s0);
stringstream ss(y);
ss>>z;
a[x]=z;
return;
}
int main(){
int flag=0,cnt=1;
a[s0]=0;
string arr,indx;
while(cin>>s){
if(s!=".") flag=1;
else if(!flag) break;
else{
if(!bug) cout<<"0"<<endl;
a.clear();
value.clear();
left_value=right_value=s0;
cnt=1;
bug=flag=0;
continue;
}
if(bug) continue;
if(s.find("=")==string::npos) get_arr();
else{
s1=s.substr(0,s.find("="));
s2=s.substr(s.find("=")+1);
arr=s1.substr(0,s1.find("["));
indx=s1.substr(s1.find("[")+1,s1.find_last_of("]")-2);
indx=get_value(indx,arr);
stringstream ss(indx);
unsigned int t;
ss>>t;
if(t>=a[arr]) bug=1;
left_value=arr+"["+indx+"]";
right_value=get_value(s2,s0);
if(bug){
cout<<cnt<<endl;
continue;
}
value[left_value]=right_value;
left_value=right_value=s0;
}
cnt++;
}
return 0;
}
|