Score : 400 points
You have N items and a bag of strength W. The i-th item has a weight of w_i and a value of v_i.
You will select some of the items and put them in the bag. Here, the total weight of the selected items needs to be at most W.
Your objective is to maximize the total value of the selected items.
Input is given from Standard Input in the following format:
N W w_1 v_1 w_2 v_2 : w_N v_N
Print the maximum possible total value of the selected items.
4 6 2 1 3 4 4 10 3 4
11
The first and third items should be selected.
4 6 2 1 3 7 4 10 3 6
13
The second and fourth items should be selected.
4 10 1 100 1 100 1 100 1 100
400
You can take everything.
4 1 10 100 10 100 10 100 10 100
0
You can take nothing.