Compilare: main.cpp: In function 'bool check(int, int)': main.cpp:17:5: warning: unused variable 'i' [-Wunused-variable] int i,j,ok=0,x=dst[a][b]; ^ main.cpp:17:9: warning: unused variable 'ok' [-Wunused-variable] int i,j,ok=0,x=dst[a][b]; ^~ main.cpp: In function 'int main()': main.cpp:63:5: warning: unused variable 'poz' [-Wunused-variable] int poz=0,i,j,s=0,ok=1,l=0,x=1; ^~~ main.cpp:63:19: warning: unused variable 'ok' [-Wunused-variable] int poz=0,i,j,s=0,ok=1,l=0,x=1; ^~ main.cpp:63:24: warning: unused variable 'l' [-Wunused-variable] int poz=0,i,j,s=0,ok=1,l=0,x=1; ^