Compilare: user.cpp: In function ‘void citire()’: user.cpp:26:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reuniune.in","r",stdin); ^ user.cpp:27:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld %lld",&p[1][0],&p[1][1],&p[1][2],&p[1][3]); ^ user.cpp:28:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld %lld",&p[2][0],&p[2][1],&p[2][2],&p[2][3]); ^ user.cpp:29:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld %lld",&p[3][0],&p[3][1],&p[3][2],&p[3][3]); ^ user.cpp: In function ‘void afiseaza()’: user.cpp:33:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reuniune.out","w",stdout); ^