perm.cpp:7:13: error: ambiguating new declaration of 'std::vector<long long int> construct_permutation(long long int)'
7 | vector<int> construct_permutation(long long k){
| ^~~~~~~~~~~~~~~~~~~~~
In file included from perm.cpp:2:
perm.h:3:18: note: old declaration 'std::vector<int> construct_permutation(long long int)'
3 | std::vector<int> construct_permutation(long long k);
| ^~~~~~~~~~~~~~~~~~~~~
perm.cpp: In function 'std::vector<long long int> construct_permutation(long long int)':
perm.cpp:20:12: warning: unused variable 's' [-Wunused-variable]
20 | int s=0;
| ^