Compilare: user.cpp: In function ‘void citire()’: user.cpp:16:9: warning: unused variable ‘x’ [-Wunused-variable] int x, y; ^ user.cpp:16:12: warning: unused variable ‘y’ [-Wunused-variable] int x, y; ^ user.cpp: In function ‘void poz(int, int, int&)’: user.cpp:66:42: warning: suggest parentheses around comparison in operand of ‘==’ [-Wparentheses] if((a[i][0] > a[j][0] && a[i][2] == a[j][2] == 1) || (a[i][2] == 0 && a[j][2] == 1)) ^