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  1. #include<stdio.h>
  2. int d[300005];
  3. int col[300005];
  4. int main()
  5. {
  6. 	int n, m, i, a, b, c, t;
  7. 	scanf("%d %d", &n, &m);
  8. 	while(m>0)
  9.     {
  10.         scanf("%d %d %d", &a, &b, &c);
  11.         if(d[b])
  12.         {
  13.         	t=a;
  14.         	a=b;
  15.         	b=t;
  16. 		}
  17.         if(d[c])
  18.         {
  19.         	t=a;
  20.         	a=c;
  21.         	c=t;
  22. 		}
  23.         col[b]=(col[a]+1)%3;
  24.         col[c]=(col[a]+2)%3;
  25.         d[a]=d[b]=d[c]=1;
  26.         m--;
  27.     }
  28.     for(i=1; i<=n; i++)
  29.     printf("%d ",col[i]+1);
  30.     return 0;
  31. }
Success #stdin #stdout 0s 4524KB
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https://ideone.com/r3BSj4
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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