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  1. /*
  2. **	jan25
  3. */
  4. #include <iostream>
  5. #include <cstdio>
  6. #include <cstring>
  7. #include <vector>
  8.  
  9. int N = 300005;
  10.  
  11. using namespace std;
  12.  
  13. int next[300005];
  14. int ans[300005]; 
  15.  
  16. int getn(int i) {
  17. 	if (next[i] == i) return i;
  18. 	else return (next[i] = getn(next[i]));
  19. }
  20.  
  21. int main() {
  22. 	int n, m; cin>> n >> m;
  23.  
  24.  
  25. 	int a, b, i, j, k;
  26. 	i = 1;
  27. 	while (i <= n) next[i] = i++;
  28.  
  29. 	while (m--) {
  30. 		scanf("%d%d%d", &i, &j, &k);
  31.  
  32. 		while (i <= j) {
  33. 			i = getn(i);
  34. 			if (i != k) ans[i] = k;
  35. 			if (i < k) next[i] = k;
  36. 			else if (i > k) next[i] = j+1;
  37. 			++i;
  38. 		}
  39. 	}
  40.  
  41. 	i = 1;
  42. 	while (i <= n) {
  43. 		if (ans[i] != i) printf("%d ", ans[i]);
  44. 		else printf("0 ");
  45. 		++i;
  46. 	}
  47.  
  48. 	return 0;
  49. }
  50.  
Success #stdin #stdout 0s 5488KB
comments (?)
stdin
copy 
8 4
3 5 4
3 7 6
2 8 8
1 8 1
stdout
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0 8 4 6 4 8 6 1
https://ideone.com/MUWaHY
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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