Compilare: user.c: In function ‘main’: user.c:36:25: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] for( i=((1+col)/2+(1-col&1))/2; i<(1+col)/2+(1-col&1) && ok==0; i++ ){ ^ user.c:36:51: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] for( i=((1+col)/2+(1-col&1))/2; i<(1+col)/2+(1-col&1) && ok==0; i++ ){ ^ user.c:13:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d ", &lin, &col ); ^