Compilare: user.cpp: In function ‘void Update1(int, int, int)’: user.cpp:27:26: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(who1[2*nod+1]==-1 && who1[2*nod]!=-1 || minplus[2*nod]<=minplus[2*nod+1]) ^ user.cpp:30:28: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(who1[2*nod]==-1 && who1[2*nod+1]!=-1 || minplus[2*nod]>=minplus[2*nod+1]) ^ user.cpp: In function ‘void Update2(int, int, int)’: user.cpp:46:26: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(who2[2*nod+1]==-1 && who2[2*nod]!=-1 || minminus[2*nod]<=minminus[2*nod+1]) ^ user.cpp:49:28: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(who2[2*nod]==-1 && who2[2*nod+1]!=-1 || minminus[2*nod]>=minminus[2*nod+1]) ^ user.cpp: In function ‘void query1(int, int, int)’: user.cpp:56:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(who1[nod]!=-1) ^ user.cpp: In function ‘void query2(int, int, int)’: user.cpp:74:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(who2[nod]!=-1) ^