Compilare: user.cpp: In function ‘int main()’: user.cpp:8:21: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] int n , o , x , p = 0 , i ; ^ user.cpp:9:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "clasament.in" , "r" , stdin ) ; ^ user.cpp:10:48: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "clasament.out" , "w" , stdout ) ; ^ user.cpp:11:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d" , & n , & o ) ; ^ user.cpp:16:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d" , & x ) ; ^