#P1276. Tree Plantation and Cutting Simulation

    ID: 14563 Type: Default 1000ms 256MiB

Tree Plantation and Cutting Simulation

Tree Plantation and Cutting Simulation

There is a row of trees located along the road just outside the school gate, with positions numbered from \(0\) to \(L\) (inclusive). Each position initially has a mature tree. Two types of operations will be performed sequentially:

  • Lumberjack Operation: Denoted by 0 A B where \(0 \leq A \leq B \leq L\). In this operation, every tree (or seedling) at positions \(A\) through \(B\) (inclusive) is cut down completely.
  • Planter Operation: Denoted by 1 C D where \(0 \leq C \leq D \leq L\). In this operation, at every position from \(C\) to \(D\) (inclusive) that is empty (i.e. the tree has been cut and there is no replanting currently), a seedling is planted.

Your task is to determine two numbers after all operations have been executed:

  1. The total number of seedlings remaining (seedlings that were planted and never subsequently cut).
  2. The number of seedlings that were planted and then later cut by a lumberjack operation.
  3. </p>

    Note: Initially every position (from \(0\) to \(L\)) contains a mature tree. When a lumberjack operation is performed, if a seedling is cut, it will be counted toward the second number. Cutting a mature tree does not count.

    inputFormat

    The first line contains two integers \(L\) and \(Q\) where \(L\) (\(0 \leq L \leq 10^5\)) is the maximum index and \(Q\) is the number of operations.

    Each of the following \(Q\) lines contains an operation in one of the following formats:

    • 0 A B: The lumberjack operation, cutting all trees (or seedlings) in the interval \([A, B]\).
    • 1 C D: The planter operation, planting a seedling at each empty position in the interval \([C, D]\).

    outputFormat

    Output two integers separated by a space:

    1. The number of seedlings remaining after all operations.
    2. The number of seedlings that were planted by a planter operation and later cut by a lumberjack operation.

    sample

    5 3
    0 1 3
    1 2 4
    0 3 5
    1 1