Compilare: main.cpp: In function 'std::vector<int> ctl::sort(std::vector<int>)': main.cpp:63:12: warning: unused variable 'j' [-Wunused-variable] int i, j, z; ^ main.cpp:63:15: warning: unused variable 'z' [-Wunused-variable] int i, j, z; ^ main.cpp: In function 'int main()': main.cpp:81:10: warning: unused variable 'j' [-Wunused-variable] int i, j, z; ^ main.cpp: In function 'void _reset()': main.cpp:13:32: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread ( BUFF, 1, DIM, fin ); ^