Compilare: user.cpp: In function ‘int optCover4(int, int, int, int, int, int, int)’: user.cpp:182:36: warning: unused variable ‘i’ [-Wunused-variable] int result, res, nsel, lim, b, c, i, j, k, minDim, cnt; ^ user.cpp:182:39: warning: unused variable ‘j’ [-Wunused-variable] int result, res, nsel, lim, b, c, i, j, k, minDim, cnt; ^ user.cpp:182:42: warning: unused variable ‘k’ [-Wunused-variable] int result, res, nsel, lim, b, c, i, j, k, minDim, cnt; ^ user.cpp: In function ‘int main()’: user.cpp:265:6: warning: unused variable ‘tstart’ [-Wunused-variable] int tstart = clock(); ^ user.cpp:267:6: warning: unused variable ‘qK’ [-Wunused-variable] int qK; ^