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Matcom Online Grader
Faculty of Mathematics and Computer Science of University of Havana
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D - ICPC Strikes Again
Languages: C, C++, Java, Pascal, Python, Tiger, JavaScript, Haskell, C#
Time & Memory limits: (details)
International Concrete Projects Company (ICPC) is a construction company which specializes in building houses for the high-end market. The company is the most profitable company in the world due to a very efficient land division method which has been used in its housing development projects since last year. Recently there was a chaos at ICPC, because employees refused to work arguing that they did not earn enough. Worried about the loss in profit due to the strike, the company board proposed a new method to calculate the salaries which was luckily accepted by everyone.
The salary of a worker reflects the significance of the tasks that he/she has to perform and is influenced by the way tasks depend on each other.
A task $X$ depends on a task Y if either (i) $X$ depends directly on $Y$, or (ii) there exists a task $T$ such that $X$ depends directly on $T$ and $T$ depends on $Y$. Since in ICPC all tasks must be performed, there is no circularity in the task dependence relation. Also, a task may be performed by more than one worker.
A basic significance is associated with each task reflecting its importance (for example, developing the efficient land division method is more important than building the houses themselves). The significance of a task $T$ is then defined as the basic significance of $T$ plus the significance of every task which depends directly on $T$. Note that if no other tasks depend directly on task $T$, the basic significance and the significance of $T$ are the same.
The salary of a worker is the sum of the significances of all the tasks he/she performs which do not depend on any other task performed by him/her. In other words, a value equal to the significance of task $X$ will be added to the salary of a worker $W$ that works in task $X$ if there is no other task $Y$ on which $X$ depends, and $W$ works also in $Y$.
ICPC wants you to help them to determine the salary of each of its employees.
Input
The input contains several test cases.
The first line of a test case contains two integers $T$ and $E$ indicating respectively the number of tasks and the number of employees ($1 \leq T \leq 1000$ and $1 \leq E \leq 1000$). Tasks are numbered from $1$ to $T$ and employees from $1$ to $E$.
Then it will come a sequence of lines describing the tasks $1$ to $T$ in ascending order. Each task is described by two lines. The first of these lines contains three integers $BS$, $ND$ and $NE$, representing respectively the basic significance of the task, the number of tasks that depend directly on it, and the number of employees who perform it ($1 \leq BS \leq 1000$, $0 \leq ND \lt T$ and $1 \leq NE \leq E$). The second line contains $ND + NE$ integers corresponding first to the $ND$ directly dependent tasks and then the $NE$ employees who perform the task. The end of input is indicated by $T = E = 0$.
The input must be read from standard input.
Output
Test cases must be answered in the order that they were presented. For each test case you must print:
- a single line containing five stars $\texttt{*****}$ indicating the beginning of the case
- for each employee $i$, one line with two integers $i$ and $s$, separated by a blank, meaning that $i$ has a salary of $s$.
The output must be written to standard output.
Sample test(s)
Input
3 2
100 2 2
2 3 1 2
40 0 1
1
60 0 1
2
7 2
10 2 1
2 3 1
10 2 1
4 5 2
10 2 1
6 7 2
10 0 1
1
10 0 1
1
10 0 1
1
10 0 1
1
0 0
Output
*****
1 200
2 200
*****
1 70
2 60