Main.cc: In function ‘int main()’:
Main.cc:7:29: error: no matching function for call to ‘prev_permutation(std::__cxx11::basic_string::iterator)’
if(prev_permutation(n.end())&&n[0]!=0){
^
In file included from /usr/include/c++/7/algorithm:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
from Main.cc:1:
/usr/include/c++/7/bits/stl_algo.h:3054:5: note: candidate: template bool std::prev_permutation(_BIter, _BIter)
prev_permutation(_BidirectionalIterator __first,
^~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/stl_algo.h:3054:5: note: template argument deduction/substitution failed:
Main.cc:7:29: note: candidate expects 2 arguments, 1 provided
if(prev_permutation(n.end())&&n[0]!=0){
^
In file included from /usr/include/c++/7/algorithm:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
from Main.cc:1:
/usr/include/c++/7/bits/stl_algo.h:3086:5: note: candidate: template bool std::prev_permutation(_BIter, _BIter, _Compare)
prev_permutation(_BidirectionalIterator __first,
^~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/stl_algo.h:3086:5: note: template argument deduction/substitution failed:
Main.cc:7:29: note: candidate expects 3 arguments, 1 provided
if(prev_permutation(n.end())&&n[0]!=0){
^