AtCoder Beginner Contest 216
G
01Sequence
AtCoder
⌀ 1963
原题
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Problem Statement

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Consider a sequence of length $N$ consisting of 0s and 1s, $A=(A_1,A_2,\dots,A_N)$, that satisfies the following condition.

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For every $i=1,2,\dots,M$, there are at least $X_i$ occurrences of 1 among $A_{L_i}, A_{L_i+1}, \dots, A_{R_i}$.

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Print one such sequence with the fewest number of occurrences of 1s.

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There always exists a sequence that satisfies the condition under the Constraints.

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Constraints

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  • $1 \leq N \leq 2 \times 10^5$
  • $1 \leq M \leq \min(2 \times 10^5, \frac{N(N+1)}{2} )$
  • $1 \leq L_i \leq R_i \leq N$
  • $1 \leq X_i \leq R_i-L_i+1$
  • $(L_i,R_i) \neq (L_j,R_j)$ if $i \neq j$.
  • All values in input are integers.
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Input

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Input is given from Standard Input in the following format:

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N M
L_1 R_1 X_1
L_2 R_2 X_2
\vdots
L_M R_M X_M

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Output

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Print a sequence $A$ consisting of 0s and 1s, with spaces in between.

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A_1 A_2 \dots A_N

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It must satisfy all the requirements above.

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样例

Input #1
6 3
1 4 3
2 2 1
4 6 2
Output #1
0 1 1 1 0 1
Another acceptable output is `1 1 0 1 1 0`. On the other hand, `0 1 1 1 1 1`, which has more than the fewest number of `1`s, is unacceptable.
Input #2
8 2
2 6 1
3 5 3
Output #2
0 0 1 1 1 0 0 0
题目信息
题号
abc216_g
时间限制
2 s
内存限制
1024 MB

题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。