scor.cpp: In function 'void get_nr(int*, int*)': scor.cpp:12: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result scor.cpp: In function 'void imp_int(int*, int*)': scor.cpp:63: warning: statement has no effect scor.cpp:57: warning: unused variable 'aux' scor.cpp: In function 'int main()': scor.cpp:113: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result scor.cpp:114: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result scor.cpp:116: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result /tmp/ccoaTCLZ.o: In function `get_nr(int*, int*)': scor.cpp:(.text+0x2ef): warning: the `gets' function is dangerous and should not be used.