Compilare: user.cpp: In function ‘void solve()’: user.cpp:76:9: warning: unused variable ‘p1’ [-Wunused-variable] int p1 = 0, q1 = -1, p2 = 0, q2 = -1; ^ user.cpp:76:17: warning: unused variable ‘q1’ [-Wunused-variable] int p1 = 0, q1 = -1, p2 = 0, q2 = -1; ^ user.cpp:76:26: warning: unused variable ‘p2’ [-Wunused-variable] int p1 = 0, q1 = -1, p2 = 0, q2 = -1; ^ user.cpp:76:34: warning: unused variable ‘q2’ [-Wunused-variable] int p1 = 0, q1 = -1, p2 = 0, q2 = -1; ^