Eroare de compilare: user.cpp: In function ‘void cel_mai_lung_subsir_comun(int*, int*, int, int)’: user.cpp:11:23: warning: variable ‘pozB’ set but not used [-Wunused-but-set-variable] int cmax = 0, c,pozA,pozB,i=0,j=0; ^~~~ user.cpp:19:8: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] c++; ^ /usr/lib/gcc/x86_64-linux-gnu/6/../../../../lib32/crt1.o: In function `_start': (.text+0x18): undefined reference to `main' collect2: error: ld returned 1 exit status