Compilare: main.cpp: In function 'int binarySearch(int, int, unsigned int)': main.cpp:23:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( temp == p ){ ~~~~~^~~~ main.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if( temp > p ) ~~~~~^~~ main.cpp: In function 'int main()': main.cpp:40:30: warning: format '%lu' expects argument of type 'long unsigned int*', but argument 3 has type 'unsigned int*' [-Wformat=] fscanf(in_file, "%lu", &p); ^ main.cpp:40:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in_file, "%lu", &p); ^ main.cpp: In function 'int binarySearch(int, int, unsigned int)': main.cpp:32:12: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized] return k; ^ main.cpp: In function 'int main()': main.cpp:44:12: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(out_file, "%d", ans != 0 ? ans : -1 ); ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~