teroristi.cpp: In function `int decode(int, char&, char&)': teroristi.cpp:43: warning: control reaches end of non-void function teroristi.cpp: In function `void read()': teroristi.cpp:59: warning: unused variable `int pz' teroristi.cpp: In function `void reconst()': teroristi.cpp:158: warning: comparison between signed and unsigned integer expressions