Compilare: main.cpp: In function 'int main()': main.cpp:10:26: warning: variable 'x1' set but not used [-Wunused-but-set-variable] 10 | int n, i, j, i1, i2, x1, x2, y1, y2; | ^~ main.cpp:10:30: warning: variable 'x2' set but not used [-Wunused-but-set-variable] 10 | int n, i, j, i1, i2, x1, x2, y1, y2; | ^~ main.cpp:10:34: warning: variable 'y1' set but not used [-Wunused-but-set-variable] 10 | int n, i, j, i1, i2, x1, x2, y1, y2; | ^~ main.cpp:10:38: warning: variable 'y2' set but not used [-Wunused-but-set-variable] 10 | int n, i, j, i1, i2, x1, x2, y1, y2; | ^~