Compilare: user.cpp: In function ‘double compute(int, int)’: user.cpp:53:19: warning: unused variable ‘j’ [-Wunused-variable] int k = 0, i, j, ls, ld; ^ user.cpp:53:22: warning: unused variable ‘ls’ [-Wunused-variable] int k = 0, i, j, ls, ld; ^ user.cpp:53:26: warning: unused variable ‘ld’ [-Wunused-variable] int k = 0, i, j, ls, ld; ^ user.cpp: In function ‘bool cmpcurr(const punct&, const punct&)’: user.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type] } ^