Compilare: user.cpp: In function ‘void input()’: user.cpp:77:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d%d%d%d" , &x1 , &y1 , &d1 , &m1 , &s1 ) ; ^ user.cpp:78:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d%d%d%d" , &x2 , &y2 , &d2 , &m2 , &s2 ) ; ^ user.cpp: In function ‘int main()’: user.cpp:90:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "momente.in" , "r" , stdin ) ; ^ user.cpp:91:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "momente.out" , "w" , stdout ) ; ^ user.cpp:93:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d" , &k ) ; ^