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lines changed Original file line number Diff line number Diff line change 1+ ``` java
2+ import java.io.* ;
3+ import java.util.* ;
4+
5+ public class Main {
6+ public static void main (String [] args ) throws IOException {
7+ BufferedReader br = new BufferedReader (new InputStreamReader (System . in));
8+ int N = Integer . parseInt(br. readLine());
9+
10+ int [] T = new int [N + 1 ];
11+ int [] P = new int [N + 1 ];
12+
13+ for (int i = 1 ; i <= N ; i++ ) {
14+ StringTokenizer st = new StringTokenizer (br. readLine());
15+ T [i] = Integer . parseInt(st. nextToken());
16+ P [i] = Integer . parseInt(st. nextToken());
17+ }
18+
19+ int [] dp = new int [N + 2 ];
20+
21+ for (int i = N ; i >= 1 ; i-- ) {
22+ if (i + T [i] <= N + 1 ) {
23+ dp[i] = Math . max(dp[i + 1 ], P [i] + dp[i + T [i]]);
24+ } else {
25+ dp[i] = dp[i + 1 ];
26+ }
27+ }
28+
29+ System . out. println(dp[1 ]);
30+ br. close();
31+ }
32+ }
33+ ```
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