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boj12865.cpp
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//평범한 배낭 01 knapsack 문제
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
int main(){
ios::sync_with_stdio(0); cin.tie(0);
int n,k;
cin >> n >> k;
vector<vector<int>> dp(n+1,vector<int>(k+1,0));
vector<vector<int>> wv(n+1,vector<int>(2,0));
for(int i=1;i<=n;i++){
cin >> wv[i][0] >> wv[i][1];
}
for(int i=1;i<=n;i++){
for(int j=1;j<=k;j++){
if(j>=wv[i][0]){
dp[i][j]=max(dp[i-1][j],dp[i-1][j-wv[i][0]]+wv[i][1]);
}
else
dp[i][j]=dp[i-1][j];
}
}
// for(int i=0;i<=n;i++){
// for(int j=0;j<=1;j++){
// cout << wv[i][j] << " ";
// }
// cout << "\n";
// }
// for(int i=0;i<=n;i++){
// for(int j=0;j<=k;j++){
// cout << dp[i][j] << " ";
// }
// cout << "\n";
// }
cout << dp[n][k];
}