Language: C C++ D Haskell Lua OCaml PHP Perl Plain Text Python Ruby Scheme Tcl #include <string> #include <vector> using namespace std; int main() { string s("101010100000000011111111"); const size_t n = s.length() / 8; vector<uint8_t> a(n); for(size_t block = 0; block < n; block++) { uint8_t acc = 0; const size_t start = block * 8; for(size_t offset = start; offset < start + 8; offset++) { acc = (acc << 1) + (s[offset] - '0'); } a[block] = acc; } for(size_t j = 0; j < n; j++) printf("%02X", a[j]); } Private [?] Run code Submit