tom.cpp: In function `bool comparare(co, co)': tom.cpp:24: warning: control reaches end of non-void function tom.cpp: In function `int main()': tom.cpp:27: warning: `int l1' might be used uninitialized in this function tom.cpp:27: warning: `int c1' might be used uninitialized in this function tom.cpp:27: warning: `int l2' might be used uninitialized in this function tom.cpp:27: warning: `int c2' might be used uninitialized in this function