Compilare: main.cpp: In function 'bool check(int, int)': main.cpp:20:7: warning: unused variable 'i' [-Wunused-variable] int i, j, ok = 0, x = dst[a][b] ; ^ main.cpp:20:13: warning: unused variable 'ok' [-Wunused-variable] int i, j, ok = 0, x = dst[a][b] ; ^~ main.cpp: In function 'int main()': main.cpp:41:7: warning: unused variable 'poz' [-Wunused-variable] int poz = 0, i, j, s = 0, ok = 1, l = 0, x = 1 ; ^~~ main.cpp:41:29: warning: unused variable 'ok' [-Wunused-variable] int poz = 0, i, j, s = 0, ok = 1, l = 0, x = 1 ; ^~ main.cpp:41:37: warning: unused variable 'l' [-Wunused-variable] int poz = 0, i, j, s = 0, ok = 1, l = 0, x = 1 ; ^