Compilare: user.cpp: In function ‘int main()’: user.cpp:38:13: warning: unused variable ‘k’ [-Wunused-variable] int i,j,k,l; ^ user.cpp:38:15: warning: unused variable ‘l’ [-Wunused-variable] int i,j,k,l; ^ user.cpp: In function ‘void subp(int, int, int, int)’: user.cpp:14:26: warning: ‘jmin’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(li==lf&&ci==cf) ^ user.cpp:14:18: warning: ‘imin’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(li==lf&&ci==cf) ^