Compilare: user.cpp: In function ‘int main()’: user.cpp:43:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1;i <= n;i++) ^ user.cpp:44:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 1;j <= n;j++) ^ user.cpp:61:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = mid;i <= n && !ok;i++) ^ user.cpp:62:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = mid;j <= n;j++) ^ user.cpp:85:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = mid;i <= n && !ok;i++) ^ user.cpp:86:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = mid;j <= n;j++) ^ user.cpp: In function ‘void citeste(unsigned int&)’: user.cpp:22:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIM,f),poz=0; ^ user.cpp:28:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIM,f),poz=0; ^