amestec.cpp: In function 'int mvn(int, int)': amestec.cpp:23: warning: no return statement in function returning non-void amestec.cpp: In function 'int mve(int, int)': amestec.cpp:43: warning: no return statement in function returning non-void amestec.cpp: In function 'int mvs(int, int)': amestec.cpp:63: warning: no return statement in function returning non-void amestec.cpp: In function 'int mvv(int, int)': amestec.cpp:83: warning: no return statement in function returning non-void amestec.cpp: In function 'int main()': amestec.cpp:86: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result amestec.cpp:87: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result amestec.cpp:89: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result amestec.cpp:92: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result amestec.cpp:106: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result