T.java:2: error: illegal character: '#'
#pragma GCC optimize("Ofast")
^
T.java:2: error: class, interface, or enum expected
#pragma GCC optimize("Ofast")
        ^
T.java:3: error: illegal character: '#'
#define DEBUG 0
^
T.java:4: error: illegal character: '#'
#include <cassert>
^
T.java:5: error: illegal character: '#'
#include <stdio.h>
^
T.java:6: error: illegal character: '#'
#include <cstdio>
^
T.java:7: error: illegal character: '#'
#include <cstring>
^
T.java:8: error: illegal character: '#'
#include <vector>
^
T.java:9: error: illegal character: '#'
#include <queue>
^
T.java:10: error: '{' expected
template <class T> using Arr = std::vector<T>;
                 ^
T.java:10: error: illegal start of type
template <class T> using Arr = std::vector<T>;
                                             ^
T.java:11: error: illegal start of type
template <class T> using Ptn = std::pair<T, T>;
          ^
T.java:11: error: '{' expected
template <class T> using Ptn = std::pair<T, T>;
                 ^
T.java:11: error: illegal start of type
template <class T> using Ptn = std::pair<T, T>;
                                              ^
T.java:13: error: ']' expected
char buf[10000002];
         ^
T.java:15: error: <identifier> expected
bool empty(char *s) {
               ^
T.java:16: error: illegal start of expression
	for (; *s; ++s)
	       ^
T.java:17: error: illegal start of expression
		if ('0' <= *s && *s <= '9')
		           ^
T.java:17: error: illegal start of expression
		if ('0' <= *s && *s <= '9')
		                 ^
T.java:22: error: <identifier> expected
int find_arrow(char *buf) {
                   ^
T.java:23: error: not a statement
	char *s = buf;
	^
T.java:23: error: ';' expected
	char *s = buf;
	    ^
T.java:24: error: illegal start of expression
	for (; *s; ++s)
	       ^
T.java:25: error: illegal start of expression
		if (*s == '-')
		    ^
T.java:30: error: <identifier> expected
bool find_mark(char *buf) {
                   ^
T.java:31: error: not a statement
	char *s = buf;
	^
T.java:31: error: ';' expected
	char *s = buf;
	    ^
T.java:32: error: illegal start of expression
	for (; *s; ++s)
	       ^
T.java:33: error: illegal start of expression
		if (*s == '!')
		    ^
T.java:38: error: <identifier> expected
void readline(char *s) {
                  ^
T.java:39: error: illegal start of expression
	do *s = (char)getchar();
	   ^
T.java:40: error: illegal start of expression
	while (*(s++) != '\n' && *(s++) != '\0');
	       ^
T.java:40: error: illegal start of expression
	while (*(s++) != '\n' && *(s++) != '\0');
	                         ^
T.java:41: error: illegal start of expression
	*s = '\0';
	^
T.java:46: error: illegal start of expression
	scanf("%d%d", &n, &m);
	              ^
T.java:46: error: illegal start of expression
	scanf("%d%d", &n, &m);
	                  ^
T.java:47: error: '.class' expected
	std::queue<Ptn<int>> q;
	                  ^
T.java:47: error: not a statement
	std::queue<Ptn<int>> q;
	              ^
T.java:49: error: ';' expected
	Arr<Arr<int>> e(n + m + 1);
	               ^
T.java:49: error: not a statement
	Arr<Arr<int>> e(n + m + 1);
	                      ^
T.java:49: error: ';' expected
	Arr<Arr<int>> e(n + m + 1);
	                         ^
T.java:50: error: ';' expected
	Arr<int> dest(n);
	             ^
T.java:50: error: not a statement
	Arr<int> dest(n);
	              ^
T.java:50: error: ';' expected
	Arr<int> dest(n);
	               ^
T.java:51: error: ';' expected
	Arr<int> ans(m + 1, -1);
	            ^
T.java:51: error: not a statement
	Arr<int> ans(m + 1, -1);
	               ^
T.java:51: error: ';' expected
	Arr<int> ans(m + 1, -1);
	                  ^
T.java:52: error: ';' expected
	Arr<int> deg(m + n + 1, 0);
	            ^
T.java:52: error: not a statement
	Arr<int> deg(m + n + 1, 0);
	                   ^
T.java:52: error: ';' expected
	Arr<int> deg(m + n + 1, 0);
	                      ^
T.java:80: error: not a statement
			char *s = buf;
			^
T.java:80: error: ';' expected
			char *s = buf;
			    ^
T.java:85: error: illegal start of expression
				sscanf(s, "%d%n", &u, &sz);
				                  ^
T.java:85: error: illegal start of expression
				sscanf(s, "%d%n", &u, &sz);
				                      ^
T.java:90: error: illegal start of expression
			sscanf(buf + pos + 3 + has_mark, "%d", &end);
			                                       ^
T.java:99: error: illegal character: '#'
#if DEBUG
^
T.java:99: error: '(' expected
#if DEBUG
   ^
T.java:99: error: ')' expected
#if DEBUG
         ^
T.java:104: error: illegal character: '#'
#endif
^
T.java:104: error: not a statement
#endif
 ^
T.java:104: error: ';' expected
#endif
      ^
T.java:107: error: illegal start of expression
			sscanf(buf + has_mark, "%d", &end);
			                             ^
T.java:109: error: ';' expected
				return puts("conflict"), 0;
				                       ^
T.java:111: error: illegal start of expression
			q.push({end, !has_mark});
			       ^
T.jav...