Compilare: main.cpp: In function 'int main()': main.cpp:38:20: warning: unused variable 'x' [-Wunused-variable] 38 | for(int i = 1, x, y, z, t; i <= n; ++i) { | ^ main.cpp:38:23: warning: unused variable 'y' [-Wunused-variable] 38 | for(int i = 1, x, y, z, t; i <= n; ++i) { | ^ main.cpp:38:26: warning: unused variable 'z' [-Wunused-variable] 38 | for(int i = 1, x, y, z, t; i <= n; ++i) { | ^ main.cpp:38:29: warning: unused variable 't' [-Wunused-variable] 38 | for(int i = 1, x, y, z, t; i <= n; ++i) { | ^