johnie.cpp: In function 'int main()': johnie.cpp:92: warning: suggest explicit braces to avoid ambiguous 'else' johnie.cpp:80: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result johnie.cpp:81: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result johnie.cpp:83: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result johnie.cpp:85: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result