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Cod sursa(job #955506)
#include <fstream>
#include <vector>
using namespace std;
int main()
{
ifstream f("aprindere.in");
ofstream g("aprindere.out");
size_t n,m;
f>>n>>m;
vector<bool> v;
for(size_t i=0;i<n;i++){
bool ok;
f>>ok;
v.push_back(ok);
}
int s=0;
for(size_t i=0;i<m;i++){
int x;
f>>x;
if(v[x]){
f.ignore(1000,'\n');
continue;
}
size_t nr;
f>>nr;
s+=nr;
f>>nr;
for(size_t j=0;j<nr;j++){
f>>x;
v[x]=v[x]^1;
}
}
g<<s;
return 0;
}