Compilare: main.cpp: In function 'int main()': main.cpp:51:12: warning: unused variable 'j' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^ main.cpp:51:15: warning: unused variable 'x1' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^~ main.cpp:51:19: warning: unused variable 'y1' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^~ main.cpp:51:23: warning: unused variable 'x2' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^~ main.cpp:51:27: warning: unused variable 'y2' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^~ main.cpp:51:31: warning: unused variable 'x' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^ main.cpp:51:34: warning: unused variable 'y' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^ main.cpp:51:37: warning: unused variable 'z' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^ main.cpp:51:40: warning: unused variable 'm' [-Wunused-variable] 51 | int i, j, x1, y1, x2, y2, x, y, z, m; | ^