Compilare: main.cpp: In function 'int main()': main.cpp:13:29: warning: unused variable 'j' [-Wunused-variable] 13 | int cer, x, y, t, n, i, j, a1, b1, a2, b2; | ^ main.cpp:13:32: warning: unused variable 'a1' [-Wunused-variable] 13 | int cer, x, y, t, n, i, j, a1, b1, a2, b2; | ^~ main.cpp:13:36: warning: unused variable 'b1' [-Wunused-variable] 13 | int cer, x, y, t, n, i, j, a1, b1, a2, b2; | ^~ main.cpp:13:40: warning: unused variable 'a2' [-Wunused-variable] 13 | int cer, x, y, t, n, i, j, a1, b1, a2, b2; | ^~ main.cpp:13:44: warning: unused variable 'b2' [-Wunused-variable] 13 | int cer, x, y, t, n, i, j, a1, b1, a2, b2; | ^~