Compilare: user.cpp: In function ‘int Binary_Search(int, long long int&)’: user.cpp:64:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void get_number(int&)’: user.cpp:23:46: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buffer , 1 , Bsize , stdin); ^ user.cpp:34:46: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buffer , 1 , Bsize , stdin); ^ user.cpp: In function ‘int main()’: user.cpp:68:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("progresii.in","r",stdin); ^ user.cpp:69:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("progresii.out","w",stdout); ^ user.cpp:71:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %lld %lld", &n, &m, &K, &L); ^ user.cpp:75:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buffer , 1 , Bsize , stdin); p = 0; ^