library/DynamicSwag.java

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• Last update: 2023-03-23 19:06:36+09:00

Depends on

• library/FastIO.java

Verified with

• library/DynamicSwag_test.java

Code

package library;

import java.util.*;
import java.util.function.*;
import library.FastIO;

class DynamicSwag {
	long e;
	LongBinaryOperator f;

	Deque<Long> frontVal = new ArrayDeque<>();
	long front;
	Deque<Long> back = new ArrayDeque<>();

	// O(1)
	DynamicSwag(long e, LongBinaryOperator f) {
		this.e = e;
		this.f = f;
		front = e;
	}

	// O(1)
	long fold() { return back.isEmpty() ? front : f.applyAsLong(back.getLast(), front); }
	// O(1)
	void push(long x) {
		frontVal.addLast(x);
		front = f.applyAsLong(front, x);
	}
	// O(1) amortized
	void pop() {
		if(back.isEmpty()) {
			long tmp = e;
			while(!frontVal.isEmpty()) {
				tmp = f.applyAsLong(frontVal.removeLast(), tmp);
				back.addLast(tmp);
			}
			front = e;
		}
		back.removeLast();
	}
}

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/site-packages/onlinejudge_verify/documentation/build.py", line 71, in _render_source_code_stat
    bundled_code = language.bundle(stat.path, basedir=basedir, options={'include_paths': [basedir]}).decode()
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/site-packages/onlinejudge_verify/languages/user_defined.py", line 71, in bundle
    return subprocess.check_output(shlex.split(command))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/subprocess.py", line 466, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/subprocess.py", line 571, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['false']' returned non-zero exit status 1.

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