Cod sursa(job #1718794)
| Utilizator | Data | 19 iunie 2016 09:35:55 | |
|---|---|---|---|
| Problema | Problema Damelor | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.58 kb |
#include <fstream>
using namespace std;
ifstream fin("damesah.in");
ofstream fout("damesah.out");
int lvl,n,i[21],a[21],b[101],c[101],k;
void backtr(int lvl){
if(lvl>n){
if(k==0) {
for(int j=1;j<=n;j++) fout<<i[j]<<' ';fout<<'\n';}k++;}
for(i[lvl]=1;i[lvl]<=n;i[lvl]++)
if(a[i[lvl]]==0 && b[lvl-i[lvl]+n]==0 && c[lvl+i[lvl]]==0) {
a[i[lvl]]=b[lvl-i[lvl]+n]=c[lvl+i[lvl]]=1;
backtr(lvl+1);
a[i[lvl]]=b[lvl-i[lvl]+n]=c[lvl+i[lvl]]=0;
}
}
int main()
{
fin>>n;
backtr(1);
fout<<k<<'\n';
}
