hihocoder:01背包

import java.util.*;
public class Main{
public static void main(String[] args){
Scanner cin = new Scanner(System.in);
int n = 0;
int pack = 0;
n = cin.nextInt();
pack = cin.nextInt();
int value[] = new int
;
int weight[] = new int
;
int dp[] = new int[pack + 1] ;
for(int i = 0; i < n; ++i){
weight[i] = cin.nextInt();
value[i] = cin.nextInt();
}
for(int i = 0; i < n; ++i){
for(int j = pack; j >= 1; --j){
if(j >= weight[i])
dp[j] = Math.max(dp[j], dp[j - weight[i]] + value[i]);
}
}
System.out.println(dp[pack]);
}
}