dragoni.cpp:12: warning: integer overflow in expression dragoni.cpp: In function 'void p1()': dragoni.cpp:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result dragoni.cpp: In function 'void p2()': dragoni.cpp:98: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result dragoni.cpp: In function 'int main()': dragoni.cpp:113: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result dragoni.cpp:114: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result dragoni.cpp:115: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result dragoni.cpp:118: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result