Eroare de compilare: main.cpp: In function 'int main()': main.cpp:12:5: error: 'ifstream' was not declared in this scope ifstream cin("bignumber.in"); ^~~~~~~~ main.cpp:13:5: error: 'ofstream' was not declared in this scope ofstream cout("bignumber.out"); ^~~~~~~~ main.cpp:15:5: error: 'cin' was not declared in this scope cin>>n>>k; ^~~ main.cpp:24:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(f[j]!=mat[j].size()) ~~~~^~~~~~~~~~~~~~~ main.cpp:30:17: error: 'cout' was not declared in this scope cout/*<<k<<" "*/<<j; ^~~~ main.cpp:36:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=f[p];j<mat[p].size();j++){ ~^~~~~~~~~~~~~~ Non zero exit status: 1