setw
<iomanip>
shared_ptr
<memory>
showbase
<iostream>
showpoint
<iostream>
size_t
<cstddef>
skipws
<iostream>
smatch
<regex>
sort
<algorithm>
sqrt
<cmath>
sregex_iterator
<regex>
ssub_match
<regex>
stable_sort
<algorithm>
stack
<stack>
stoi
<string>
strcmp
<cstring>
strcpy
<cstring>
string
<string>
stringstream
<sstream>
strlen
<cstring>
strncpy
<cstring>
strtod
<string>
swap
<utility>
terminate
<exception>
time
<ctime>
tolower
<cctype>
toupper
<cctype>
transform
<algorithm>
tuple
<tuple>
tuple_element
<tuple>
tuple_size
<tuple>
type_info
<typeinfo>
unexpected
<exception>
uniform_int_distribution
<random>
uniform_real_distribution
<random>
uninitialized_copy
<memory>
uninitialized_fill
<memory>
unique
<algorithm>
unique_copy
<algorithm>
unique_ptr
<memory>
unitbuf
<iostream>
unordered_map
<unordered_map>
unordered_multimap
<unordered_map>
unordered_multiset
<unordered_set>
unordered_set
<unordered_set>
upper_bound
<algorithm>
uppercase
<iostream>
vector
<vector>
weak_ptr
<memory>