showroom.cpp: In function 'void read()': showroom.cpp:51: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result showroom.cpp: In function 'int comun(int, int)': showroom.cpp:60: warning: comparison between signed and unsigned integer expressions showroom.cpp:61: warning: comparison between signed and unsigned integer expressions showroom.cpp: In function 'void baga(int)': showroom.cpp:80: warning: comparison between signed and unsigned integer expressions showroom.cpp: In function 'void numara()': showroom.cpp:96: warning: comparison between signed and unsigned integer expressions showroom.cpp: In function 'int main()': showroom.cpp:176: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result showroom.cpp:177: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result