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Cod sursa(job #930746)
#include<fstream>
using namespace std;
int p[100],n,i,k,poz,minn,j;
int main()
{
ifstream fin("permutari.in");
ofstream fout("permutari.out");
fin>>n;
for(i=1;i<=n;i++)
{
p[i]=i;
fout<<i<<" ";
}
fout<<'\n';
do{
poz=n;
while(p[poz]<p[poz-1] && poz>1) poz--;
poz--;
if(poz)
{
minn=p[poz+1]; j=poz+1;
for(i=poz+1;i<=n;i++)
if(minn>p[i] && p[i]>p[poz])
minn=p[i], j=i;
k=p[poz], p[poz]=p[j];
p[j]=k;
for(i=1;i<=(n-poz)/2;i++)
k=p[poz+i],p[poz+i]=p[n-i+1],p[n-i+1]=k;
for(i=1;i<=n;i++)
fout<<p[i]<<" ";
fout<<'\n';
}
}while(poz);
return 0;
}