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Cod sursa(job #477001)
#include <cstdio>
FILE*f=fopen("permutari.in","r");
FILE*g=fopen("permutari.out","w");
int n,st[9],k;
int valid(){
for(int i=1;i<k;i++){
if(st[i]==st[k]){
return 0;
}
}
return 1;
}
int succesor(){
if(st[k]<n) return 1;
return 0;
}
void solutie(){
for(int i =1;i<=n;i++){
fprintf(g,"%d ",st[i]);
}
fprintf(g,"\n");
}
int main(){
fscanf(f,"%d",&n);
k=1;
while(k){
if(succesor()){
st[k]++;
if (valid()){
if(k==n){
solutie();
}
else
k++;
}
}
else {
st[k]=0;
k--;
}
}
fclose(f);
fclose(g);
return 0;
}