Compilare: user.cpp: In function ‘void Read()’: user.cpp:46:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp: In function ‘void binSearch()’: user.cpp:82:17: warning: unused variable ‘left’ [-Wunused-variable] int step=30,left,right;sort(Edge+1,Edge+M+1,cmp3); ^ user.cpp:82:22: warning: unused variable ‘right’ [-Wunused-variable] int step=30,left,right;sort(Edge+1,Edge+M+1,cmp3); ^