abq.cpp: In function `int lee(int, int, int, int)': abq.cpp:80: warning: control reaches end of non-void function abq.cpp:22: warning: `int lin' might be used uninitialized in this function abq.cpp:22: warning: `int col' might be used uninitialized in this function abq.cpp: In function `void read()': abq.cpp:87: warning: char format, different type arg (arg 3)