Compilare: user.cpp: In function ‘int spidey(int, int)’: user.cpp:45:9: warning: unused variable ‘k’ [-Wunused-variable] int k, add, newi, newj, nexti, nextj, val, next2i, next2j; ^ user.cpp:45:12: warning: unused variable ‘add’ [-Wunused-variable] int k, add, newi, newj, nexti, nextj, val, next2i, next2j; ^ user.cpp:45:17: warning: unused variable ‘newi’ [-Wunused-variable] int k, add, newi, newj, nexti, nextj, val, next2i, next2j; ^ user.cpp:45:23: warning: unused variable ‘newj’ [-Wunused-variable] int k, add, newi, newj, nexti, nextj, val, next2i, next2j; ^ user.cpp:45:43: warning: unused variable ‘val’ [-Wunused-variable] int k, add, newi, newj, nexti, nextj, val, next2i, next2j; ^ user.cpp:45:48: warning: unused variable ‘next2i’ [-Wunused-variable] int k, add, newi, newj, nexti, nextj, val, next2i, next2j; ^ user.cpp:45:56: warning: unused variable ‘next2j’ [-Wunused-variable] int k, add, newi, newj, nexti, nextj, val, next2i, next2j; ^