Compilare: user.cpp: In function ‘int main()’: user.cpp:50:20: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] else if(a[val]==mx&p1>x){mx=a[val];p1=x;p2=y;} ^ user.cpp:51:20: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] else if(a[val]==mx&p1==x&&p2>y){mx=a[val];p1=x;p2=y;} ^ user.cpp:33:12: warning: unused variable ‘t2’ [-Wunused-variable] {int i,x,y,t2; ^