Compilare: user.cpp: In function ‘int dfs(int)’: user.cpp:23:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(v[cpz][0]) ^ user.cpp:31:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(v[cpz][1]) ^ user.cpp:39:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(t[cpz][0]) ^ user.cpp:49:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(t[cpz][1]) ^ user.cpp:11:16: warning: unused variable ‘cnt2’ [-Wunused-variable] int cnt1=0,cnt2=0,cpz=poz,cntx=0,p11,a=1; ^~~~ user.cpp:11:38: warning: variable ‘p11’ set but not used [-Wunused-but-set-variable] int cnt1=0,cnt2=0,cpz=poz,cntx=0,p11,a=1; ^~~