Eroare de compilare: user.cpp:5:1: error: expected initializer before ‘int’ int n, lg, suma; ^ user.cpp: In function ‘void Citire()’: user.cpp:15:12: error: ‘opt’ was not declared in this scope fin >> opt; ^ user.cpp:16:12: error: ‘n’ was not declared in this scope fin >> n; ^ user.cpp:17:5: error: ‘lg’ was not declared in this scope lg=n*(n+1)/2; ^ user.cpp:21:9: error: ‘suma’ was not declared in this scope suma+=a[i]; ^ user.cpp: In function ‘void Opt1()’: user.cpp:31:17: error: ‘lg’ was not declared in this scope for(i=1; i<=lg; i++) ^ user.cpp: In function ‘int Parcurgere(int)’: user.cpp:57:17: error: ‘n’ was not declared in this scope for(i=1; i<=n-1; i++) ^ user.cpp:70:19: error: ‘lg’ was not declared in this scope for(i=poz; i<=lg; i++) ^ user.cpp: In function ‘void CautBin()’: user.cpp:80:18: error: ‘n’ was not declared in this scope dr=25*pow(2, n+1); ^ user.cpp:94:39: error: ‘suma’ was not declared in this scope fout << pozitie << " " << pozitie-suma << "\n"; ^ user.cpp: In function ‘int main()’: user.cpp:102:8: error: ‘opt’ was not declared in this scope if(opt==1)Opt1(); ^