Compilare: main.cpp: In function 'int main()': main.cpp:89:9: warning: unused variable 'vit' [-Wunused-variable] int vit, minn, poz, aux, i, j; ^~~ main.cpp:89:14: warning: unused variable 'minn' [-Wunused-variable] int vit, minn, poz, aux, i, j; ^~~~ main.cpp:89:20: warning: unused variable 'poz' [-Wunused-variable] int vit, minn, poz, aux, i, j; ^~~ main.cpp:89:25: warning: unused variable 'aux' [-Wunused-variable] int vit, minn, poz, aux, i, j; ^~~ main.cpp:89:33: warning: unused variable 'j' [-Wunused-variable] int vit, minn, poz, aux, i, j; ^ main.cpp: In function 'char read_ch()': main.cpp:25:33: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(_in_buff, 1, 4096, _fin); ^