Compilare: user.cpp: In function ‘int main()’: user.cpp:73:20: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (b = 0 ) ^ user.cpp:75:20: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (b = 1 ) ^ user.cpp:77:20: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (b = 2 ) ^ user.cpp:79:20: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (b = 3 ) ^ user.cpp:98:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses] {if (y = 0) ^ user.cpp:103:27: warning: suggest parentheses around assignment used as truth value [-Wparentheses] else if (y = 1) ^ user.cpp:108:32: warning: suggest parentheses around assignment used as truth value [-Wparentheses] else if (y = 2 ) ^ user.cpp:113:35: warning: suggest parentheses around assignment used as truth value [-Wparentheses] else if (y = 3) ^ user.cpp:125:35: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if (x = 0) ^ user.cpp:130:27: warning: suggest parentheses around assignment used as truth value [-Wparentheses] else if (x = 1) ^ user.cpp:135:32: warning: suggest parentheses around assignment used as truth value [-Wparentheses] else if (x = 2 ) ^ user.cpp:140:35: warning: suggest parentheses around assignment used as truth value [-Wparentheses] else if (x = 3) ^ user.cpp:45:41: warning: unused variable ‘ca’ [-Wunused-variable] int x1 , x2 , y1 , y2 , q = 1 , i , j , ca= 1 , x =15 ,y = 15; ^