Compilare: main.cpp: In function 'bool _try(int)': main.cpp:27:16: warning: unused variable 'z' [-Wunused-variable] int i, j, k, z, _m; ^ main.cpp:27:19: warning: unused variable '_m' [-Wunused-variable] int i, j, k, z, _m; ^~ main.cpp: In function 'int main()': main.cpp:51:10: warning: unused variable 'j' [-Wunused-variable] int i, j, k, z; ^ main.cpp:51:13: warning: unused variable 'k' [-Wunused-variable] int i, j, k, z; ^ main.cpp:51:16: warning: unused variable 'z' [-Wunused-variable] int i, j, k, z; ^