#include <iostream> using namespace std; int N,M; //#balls, #draw void draw(int n,int m, int*a){ for (int i=0;i<n;i++){ a[M-m]=i; if (m==1){ for (int j=0;j<M;j++) cout << a[j] << ' '; cout << endl; } else draw(n,m-1,a); } } int main () { cin >> N >> M; int *a = new int[M]; draw(N,M,a); }
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