Compilare: user.cpp: In function ‘int main()’: user.cpp:62:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,d,a,b,umin,umax; ^ user.cpp:62:17: warning: unused variable ‘a’ [-Wunused-variable] int n,i,j,d,a,b,umin,umax; ^ user.cpp:62:19: warning: unused variable ‘b’ [-Wunused-variable] int n,i,j,d,a,b,umin,umax; ^ user.cpp:63:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("fotbal3.in","r",stdin); ^ user.cpp:64:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("fotbal3.out","w",stdout); ^ user.cpp: In function ‘char getChar()’: user.cpp:16:28: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(BUF,LIM,1,stdin); ^