Compilare: user.cpp: In function ‘void KosarajuAlgorithm()’: user.cpp:48:10: warning: unused variable ‘j’ [-Wunused-variable] int i , j , node; ^ user.cpp: In function ‘int LCA(int, int)’: user.cpp:111:10: warning: unused variable ‘j’ [-Wunused-variable] int i , j ; ^ user.cpp: In function ‘int main()’: user.cpp:127:10: warning: unused variable ‘j’ [-Wunused-variable] int i , j , x , y , node; ^ user.cpp:127:23: warning: unused variable ‘node’ [-Wunused-variable] int i , j , x , y , node; ^ user.cpp:148:25: warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations] lg[i] = lg[i/2] + 1 ; ^ user.cpp:147:2: note: containing loop for ( i = 1 ; i <= NMAX_SIZE ; ++i ) ^