adun.cpp: In function 'int main()': adun.cpp:30: warning: suggest parentheses around comparison in operand of '!=' adun.cpp:11: warning: unused variable 'i' adun.cpp:13: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result adun.cpp:92: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result