Compilare: user.cpp: In function ‘int Col(int, int)’: user.cpp:41:13: warning: unused variable ‘ok’ [-Wunused-variable] int k,q,ok,kk,qq; ^ user.cpp: In function ‘int Col2(int, int)’: user.cpp:97:45: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if ((y > yyi && y < yv) || y <yyi && y > yv) ^ user.cpp:106:45: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if ((x > xxi && y < xv) || x <xxi && x > xv) ^ user.cpp:83:15: warning: unused variable ‘ok’ [-Wunused-variable] int k,q,ok,kk,qq; ^ user.cpp: In function ‘int Solve()’: user.cpp:159:13: warning: unused variable ‘j’ [-Wunused-variable] int i , j , k , s , lgmax; ^ user.cpp: In function ‘void Afisare()’: user.cpp:210:16: warning: unused variable ‘q’ [-Wunused-variable] int i, j,k,q,p,mq,mw; ^ user.cpp: In function ‘int Col2(int, int)’: user.cpp:88:6: warning: ‘kk’ is used uninitialized in this function [-Wuninitialized] if (kk < 0) kk*=-1; ^ user.cpp:89:5: warning: ‘qq’ is used uninitialized in this function [-Wuninitialized] if (qq < 0) qq*=-1; ^