Submission #1560097


Source Code Expand

import java.io.*;
import java.util.*;

public class Main {

	void submit() {
		int x = nextInt();
		int k = nextInt();
		int[] flip = new int[k];
		for (int i = 0; i < k; i++) {
			flip[i] = nextInt();
		}
		
		int q = nextInt();
		
		Function func = new Function(x);
		
		int dir = -1;
		
		int ptr = 0;
		
		int curT = 0;
		
		while (q-- > 0) {
			int t = nextInt();
			int qx = nextInt();
			
			while (ptr < k && flip[ptr] <= t) {
				func.modify(flip[ptr] - curT, dir);
				curT = flip[ptr];
				dir *= -1;
				ptr++;
			}
			
			func.modify(t - curT, dir);
			curT = t;
			
			out.println(func.getAt(qx));
		}
	}
	
	static class Function {
		int flipX;
		int flipY;
		int len;
		
		final int X;

		public Function(int x) {
			flipX = 0;
			flipY = 0;
			len = x;
			this.X = x;
		}
		
		int getAt(int x) {
			if (x <= flipX) {
				return flipY;
			}
			if (x >= flipX + len) {
				return flipY + len;
			}
			return flipY + x - flipX;
		}
		
		void modify(int dist, int dir) {
			flipY += dist * dir;
			if (flipY + len <= 0) {
				flipX = flipY = len = 0;
				return;
			}
			if (flipY >= X) {
				flipX = len = 0;
				flipY = X;
				return;
			}
			
			if (flipY < 0) {
				int delta = -flipY;
				flipX += delta;
				len -= delta;
				flipY = 0;
				return;
			}
			if (flipY + len > X) {
				int delta = flipY + len - X;
				len -= delta;
				return;
			}
		}
	}

	void preCalc() {

	}

	void stress() {

	}

	void test() {

	}

	Main() throws IOException {
		br = new BufferedReader(new InputStreamReader(System.in));
		out = new PrintWriter(System.out);
		preCalc();
		submit();
		//stress();
		//test();
		out.close();
	}

	static final Random rng = new Random();

	static int rand(int l, int r) {
		return l + rng.nextInt(r - l + 1);
	}

	public static void main(String[] args) throws IOException {
		new Main();
	}

	BufferedReader br;
	PrintWriter out;
	StringTokenizer st;

	String nextToken() {
		while (st == null || !st.hasMoreTokens()) {
			try {
				st = new StringTokenizer(br.readLine());
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		}
		return st.nextToken();
	}

	String nextString() {
		try {
			return br.readLine();
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	}

	int nextInt() {
		return Integer.parseInt(nextToken());
	}

	long nextLong() {
		return Long.parseLong(nextToken());
	}

	double nextDouble() {
		return Double.parseDouble(nextToken());
	}
}

Submission Info

Submission Time
Task F - Sandglass
User mmaxio
Language Java8 (OpenJDK 1.8.0)
Score 700
Code Size 2592 Byte
Status AC
Exec Time 594 ms
Memory 54340 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 700 / 700
Status
AC × 3
AC × 42
Set Name Test Cases
Sample 0_000.txt, 0_001.txt, 0_002.txt
All 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 1_026.txt, 1_027.txt, 1_028.txt, 1_029.txt, 1_030.txt, 1_031.txt, 1_032.txt, 1_033.txt, 1_034.txt, 1_035.txt, 1_036.txt, 1_037.txt, 1_038.txt, 1_039.txt, 1_040.txt, 1_041.txt
Case Name Status Exec Time Memory
0_000.txt AC 71 ms 21076 KB
0_001.txt AC 69 ms 17492 KB
0_002.txt AC 69 ms 16852 KB
1_003.txt AC 283 ms 41364 KB
1_004.txt AC 285 ms 43740 KB
1_005.txt AC 309 ms 47360 KB
1_006.txt AC 304 ms 43464 KB
1_007.txt AC 317 ms 44400 KB
1_008.txt AC 307 ms 46628 KB
1_009.txt AC 305 ms 44460 KB
1_010.txt AC 297 ms 45004 KB
1_011.txt AC 315 ms 47844 KB
1_012.txt AC 301 ms 47632 KB
1_013.txt AC 345 ms 43480 KB
1_014.txt AC 296 ms 44392 KB
1_015.txt AC 300 ms 42332 KB
1_016.txt AC 336 ms 45712 KB
1_017.txt AC 307 ms 43364 KB
1_018.txt AC 324 ms 45424 KB
1_019.txt AC 333 ms 46336 KB
1_020.txt AC 316 ms 42820 KB
1_021.txt AC 326 ms 46988 KB
1_022.txt AC 307 ms 44448 KB
1_023.txt AC 344 ms 44592 KB
1_024.txt AC 444 ms 52260 KB
1_025.txt AC 303 ms 44152 KB
1_026.txt AC 318 ms 44020 KB
1_027.txt AC 423 ms 46420 KB
1_028.txt AC 322 ms 45504 KB
1_029.txt AC 326 ms 44596 KB
1_030.txt AC 456 ms 54340 KB
1_031.txt AC 427 ms 52704 KB
1_032.txt AC 338 ms 44888 KB
1_033.txt AC 270 ms 39808 KB
1_034.txt AC 270 ms 39480 KB
1_035.txt AC 594 ms 42936 KB
1_036.txt AC 274 ms 43640 KB
1_037.txt AC 270 ms 36988 KB
1_038.txt AC 332 ms 44112 KB
1_039.txt AC 264 ms 42780 KB
1_040.txt AC 285 ms 42068 KB
1_041.txt AC 339 ms 47588 KB