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Cod sursa(job #351831)
#include <iostream.h>
#include <fstream.h>
ifstream f("combinari.in");
ofstream g("combinari.out");
int x[20],n,k;
void tipar(int y){
int i;
for(i=1;i<=y;i++)
g<<x[i]<<" ";
g<<'\n';
}
void back(){
int y;
y=1;
x[y]=0;
while(y>0)
if(x[y]<n){
x[y]++;
if(y==k)
tipar(y);
else{
y++;
x[y]=x[y-1];
}
}
else y--;
}
int main(){
f>>n>>k;
back();
return 0;
}