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Cod sursa(job #387186)
#include <cstdio>
#include <cstring>
#define file_in "count.in"
#define file_out "count.out"
int a[2010][2010],i,j,k,nr,max,x,y,m,n;
int main()
{
int i;
freopen(file_in,"r",stdin);
freopen(file_out,"w",stdout);
scanf("%d %d", &n, &m);
for (i=1;i<=m;++i)
{
//scanf("%d %d", &x[i], &y[i]);
scanf("%d %d", &x, &y);
a[x][y]=a[y][x]=1;
}
for (i=1;i<=n;++i)
for (j=i+1;j<=n;++j)
for (k=j+1;k<=n;++k)
if (a[i][j] && a[i][k] && a[j][k])
nr++;
max=3;
printf("%d %d", max,nr);
fclose(stdin);
fclose(stdout);
return 0;
}