cai1.cpp: In function `void citire()': cai1.cpp:47: warning: comparison between signed and unsigned integer expressions cai1.cpp:48: warning: comparison between signed and unsigned integer expressions cai1.cpp: In function `int lee(coord, coord)': cai1.cpp:74: warning: control reaches end of non-void function cai1.cpp: In function `void act()': cai1.cpp:79: warning: comparison between signed and unsigned integer expressions cai1.cpp: In function `void bt(int)': cai1.cpp:87: warning: comparison between signed and unsigned integer expressions cai1.cpp:92: warning: comparison between signed and unsigned integer expressions