[Link] https://www.acmicpc.net/problem/2836 import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder(); static int[] se...
BOJ. Northwesterly Wind (5419)
[Link] https://www.acmicpc.net/problem/5419 import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder(); static int[] se...
BOJ. line Drawing (2170)
[Link] https://www.acmicpc.net/problem/2170 import java.util.*; import java.io.*; public class Main { static BufferedReader br; // static StringBuilder sb = new StringBuilder(); public stati...
BOJ. ATM (4013)
[Link] https://www.acmicpc.net/problem/4013 Step 1. get SCC Step 2. Method 1 Tarjan is DFS SCC => update dp from biggest idx to lower for(int i = groupIdx - 1; i >= 0; i--) { for(int ...
Codeforces Round 771 (Div. 2) D. Big Brush
[Link] https://codeforces.com/contest/1638/problem/D import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder(); static...
Codeforces Round 771 (Div. 2) C. Inversion Graph
[Link] https://codeforces.com/contest/1638/problem/C import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder(); public...
Codeforces Round 771 (Div. 2) B. Odd Swap Sort
[Link] https://codeforces.com/contest/1638/problem/B import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder(); public...
Codeforces Round 771 (Div. 2) A. Reverse
[Link] https://codeforces.com/contest/1638/problem/A import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder(); public...
BOJ. 2-SAT - 4 (11281)
[Link] https://www.acmicpc.net/problem/11281 Tarjan is DFS import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder()...
AtCoder. Regular Contest 135 C XOR to All
[Link] https://AtCoder.jp/contests/arc135/tasks/arc135_c IDEA import java.util.*; import java.io.*; public class Main { static BufferedReader br; static StringBuilder sb = new StringBuilder...