alo.cpp: In function 'int main()': alo.cpp:27: warning: suggest explicit braces to avoid ambiguous 'else' alo.cpp:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result alo.cpp:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result