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- #include <iostream>
- #include <fstream>
- #include <algorithm>
- using namespace std;
- ifstream f("partitiinumar4.in");
- ofstream c("partitiinumar4.out");
- int n, m;
- int st[100], v[50];
- int suma;
- void afisare(int k)
- {
- for(int i=1;i<k;i++)
- c<<v[st[i]]<<" ";
- c<<'\n';
- }
- void back(int k)
- {
- if(suma==n) afisare(k);
- else
- if(suma<n)
- {
- for(int i=st[k-1];i<=m;i++)
- {
- st[k]=i;
- suma=suma+v[i];
- back(k+1);
- suma=suma-v[i];
- }
- }
- }
- int main()
- {
- f>>n>>m;
- for(int i=1; i<=m; i++)
- f>>v[i];
- sort(v+1, v+m+1);
- st[0]=1;
- back(1);
- return 0;
- }
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