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  1. #include <cstring>
  2. #include <vector>
  3. #include <list>
  4. #include <map>
  5. #include <set>
  6. #include <deque>
  7. #include <stack>
  8. #include <bitset>
  9. #include <algorithm>
  10. #include <functional>
  11. #include <numeric>
  12. #include <utility>
  13. #include <sstream>
  14. #include <iostream>
  15. #include <iomanip>
  16. #include <cstdio>
  17. #include <cmath>
  18. #include <cstdlib>
  19. #include <ctime>
  20. #include <memory.h>
  21. #include <cassert>
  22.  
  23. using namespace std;
  24.  
  25. const int N = 200010;
  26.  
  27. int from[N], to[N], num[N];
  28. int s[N][30];
  29. int a[N][30];
  30. int sum[N][30];
  31.  
  32. int main() {
  33.   int n, m;
  34.   scanf("%d %d", &n, &m);
  35.   for (int i = 0; i <= n; i++) {
  36.     for (int j = 0; j < 30; j++) {
  37.       s[i][j] = 0;
  38.     }
  39.   }
  40.   for (int k = 0; k < m; k++) {
  41.     scanf("%d %d %d", from + k, to + k, num + k);
  42.     from[k]--; to[k]--;
  43.     for (int j = 0; j < 30; j++) {
  44.       if (num[k] & (1 << j)) {
  45.         s[from[k]][j]++;
  46.         s[to[k] + 1][j]--;
  47.       }
  48.     }
  49.   }
  50.   for (int j = 0; j < 30; j++) {
  51.     int bal = 0;
  52.     sum[0][j] = 0;
  53.     for (int i = 0; i < n; i++) {
  54.       bal += s[i][j];
  55.       a[i][j] = (bal > 0);
  56.       sum[i + 1][j] = sum[i][j] + a[i][j];
  57.     }
  58.   }
  59.   for (int k = 0; k < m; k++) {
  60.     for (int j = 0; j < 30; j++) {
  61.       if (!(num[k] & (1 << j))) {
  62.         int get = sum[to[k] + 1][j] - sum[from[k]][j];
  63.         int need = (to[k] + 1) - (from[k]);
  64.         if (get == need) {
  65.           puts("NO");
  66.           return 0;
  67.         }
  68.       }
  69.     }
  70.   }
  71.   puts("YES");
  72.   for (int i = 0; i < n; i++) {
  73.     int res = 0;
  74.     for (int j = 0; j < 30; j++) {
  75.       if (a[i][j]) {
  76.         res += (1 << j);
  77.       }
  78.     }
  79.     if (i > 0) printf(" ");
  80.     printf("%d", res);
  81.   }
  82.   printf("\n");
  83.   return 0;
  84. }
Success #stdin #stdout 0s 76032KB
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YES
https://ideone.com/c5dTmY
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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