Compilare: user.cpp: In function ‘int cer1(long long int)’: user.cpp:39:12: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^ user.cpp: In function ‘int cer2(int)’: user.cpp:56:12: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^ user.cpp: In function ‘int main()’: user.cpp:39:12: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^ user.cpp:30:21: note: ‘sol’ was declared here long long int i,sol,maxs=0; ^