#include<bits/stdc++.h> using namespace std ; void backtrack( vector<int> a , int n , int k ) { int i = k ; while ( i > 0 && a[i] - 1 == a[i - 1] ) i-- ; if ( i == 0 ){ cout << 0 ; return ; } a[i]-- ; for ( int j = i + 1 ; j <= k ; j++ ){ a[j] = n - k + j ; } for ( int i = 1 ; i <= k ; i++ ){ cout << a[i] << " " ; } } int main(){ int n , k ; cin >> n >> k ; vector<int> a(k+1) ; for ( int i = 1 ; i <= k ; i++ ) cin >> a[i] ; a[0] = 0 ; backtrack( a , n , k ) ; }
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