oj.uz

Submission #419614

# Submission time Handle Problem Language Result Execution time Memory
419614 2021-06-07T10:14:12 Z Kevin_Zhang_TW Crossing (JOI21_crossing) C++17
100 / 100
 1648 ms 45660 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;

int n, q;
vector<string> s(3);
string t;

char trans(char a, char b) { if (a == b) return a; return 'J' + 'O' + 'I' - a - b; }

string comb(string a, const string &b) {
	for (int i = 0;i < a.size();++i)
		a[i] = trans(a[i], b[i]);
	return a;
}

string yn(bool t) { return t ? "Yes" : "No"; }

struct sgt {
	int n;
	struct node {
		int sym, bad, tg;
		node () : sym(-1), bad(0), tg(-1) {}
		void operator = (int c) {
			tg = c;
			bad = sym != c;
		}
		node (node a, node b) {
			if (a.sym == b.sym) sym = a.sym;
			else sym = -1;
			bad = a.bad + b.bad;
			tg = -1;
		}
	};
	vector<node> val;
	void upd(int i) {
		if (i >= n) return;
		push(i);
		val[i] = node(val[i<<1], val[i<<1|1]);
	}
	void push(int i) {
		if (i >= n || val[i].tg == -1) return;
		int &t = val[i].tg;
		val[i<<1] = t, val[i<<1|1] = t;
		t = -1;
	}
	sgt(string s, string t) {
		n = s.size();
		val.resize(n<<1);
		for (int i = 0;i < n;++i) {
			val[i+n].sym = s[i];
			val[i+n] = t[i];
		}
		for (int i = n-1;i > 0;--i) {
			upd(i);
		}
	}
	bool ok() {
		int l = 0, r = n, bad = 0;
		l += n, r += n;
		for (int i = 18;i > 0;--i) push(l>>i), push(r>>i);
		for (;l < r;l>>=1, r>>=1) {
			if (l&1) bad += val[l++].bad;
			if (r&1) bad += val[--r].bad;
		}
		return bad == 0;
	}
	//bool ok() { DE(val[1].bad); return val[1].bad == 0; }
	void modify(int l, int r, int c) {
		int sl = l += n, sr = r += n;
		for (int i = 18;i > 0;--i) push(l>>i), push(r>>i);
		for (;l < r;l>>=1, r>>=1) {
			if (l&1) val[l++] = c;
			if (r&1) val[--r] = c;
		}
		for (;sl>>=1, sr>>=1;) upd(sl), upd(sr);
	}
};

int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n;
	for (auto &i : s) cin >> i;


	for (int i = 0;i < s.size();++i)
		for (int j = i+1;j < s.size();++j) {
			string x = comb(s[i], s[j]);
			if (!count(AI(s), x))
				s.pb(x);
			assert(s.size() <= 9);
		}


	cin >> q >> t;

	vector<sgt> tree;
	for (int i = 0;i < s.size();++i)
		tree.pb(sgt(s[i], t));

	auto exist = [&]() {
		for (int i = 0;i < s.size();++i)
			if (tree[i].ok()) return true;
		return false;
	};

	cout << yn(exist()) << '\n';

	while (q--) {
		int l, r;
		char c;
		cin >> l >> r >> c; --l;

		for (int i = 0;i < s.size();++i) 
			tree[i].modify(l, r, c);

		cout << yn(exist()) << '\n';
	}
}

Compilation message

Main.cpp: In function 'std::string comb(std::string, const string&)':
Main.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for (int i = 0;i < a.size();++i)
      |                 ~~^~~~~~~~~~
Main.cpp: In function 'int32_t main()':
Main.cpp:101:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |  for (int i = 0;i < s.size();++i)
      |                 ~~^~~~~~~~~~
Main.cpp:102:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |   for (int j = i+1;j < s.size();++j) {
      |                    ~~^~~~~~~~~~
Main.cpp:113:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  113 |  for (int i = 0;i < s.size();++i)
      |                 ~~^~~~~~~~~~
Main.cpp: In lambda function:
Main.cpp:117:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |   for (int i = 0;i < s.size();++i)
      |                  ~~^~~~~~~~~~
Main.cpp: In function 'int32_t main()':
Main.cpp:129:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  129 |   for (int i = 0;i < s.size();++i)
      |                  ~~^~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 175 ms 764 KB Output is correct
2 Correct 199 ms 844 KB Output is correct
3 Correct 196 ms 852 KB Output is correct
4 Correct 181 ms 880 KB Output is correct
5 Correct 173 ms 872 KB Output is correct
6 Correct 174 ms 776 KB Output is correct
7 Correct 183 ms 848 KB Output is correct
8 Correct 187 ms 976 KB Output is correct
9 Correct 182 ms 876 KB Output is correct
10 Correct 189 ms 912 KB Output is correct
11 Correct 191 ms 884 KB Output is correct
12 Correct 183 ms 904 KB Output is correct
13 Correct 191 ms 836 KB Output is correct
14 Correct 185 ms 888 KB Output is correct
15 Correct 186 ms 836 KB Output is correct
16 Correct 184 ms 872 KB Output is correct
17 Correct 184 ms 836 KB Output is correct
18 Correct 193 ms 868 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 175 ms 764 KB Output is correct
2 Correct 199 ms 844 KB Output is correct
3 Correct 196 ms 852 KB Output is correct
4 Correct 181 ms 880 KB Output is correct
5 Correct 173 ms 872 KB Output is correct
6 Correct 174 ms 776 KB Output is correct
7 Correct 183 ms 848 KB Output is correct
8 Correct 187 ms 976 KB Output is correct
9 Correct 182 ms 876 KB Output is correct
10 Correct 189 ms 912 KB Output is correct
11 Correct 191 ms 884 KB Output is correct
12 Correct 183 ms 904 KB Output is correct
13 Correct 191 ms 836 KB Output is correct
14 Correct 185 ms 888 KB Output is correct
15 Correct 186 ms 836 KB Output is correct
16 Correct 184 ms 872 KB Output is correct
17 Correct 184 ms 836 KB Output is correct
18 Correct 193 ms 868 KB Output is correct
19 Correct 515 ms 16344 KB Output is correct
20 Correct 469 ms 16292 KB Output is correct
21 Correct 362 ms 15240 KB Output is correct
22 Correct 374 ms 13744 KB Output is correct
23 Correct 247 ms 1800 KB Output is correct
24 Correct 269 ms 1696 KB Output is correct
25 Correct 387 ms 16244 KB Output is correct
26 Correct 405 ms 16160 KB Output is correct
27 Correct 437 ms 16104 KB Output is correct
28 Correct 434 ms 16148 KB Output is correct
29 Correct 385 ms 15720 KB Output is correct
30 Correct 260 ms 1604 KB Output is correct
31 Correct 408 ms 16080 KB Output is correct
32 Correct 396 ms 14768 KB Output is correct
33 Correct 252 ms 1688 KB Output is correct
34 Correct 467 ms 16168 KB Output is correct
35 Correct 367 ms 12140 KB Output is correct
36 Correct 247 ms 1588 KB Output is correct
37 Correct 261 ms 1660 KB Output is correct
38 Correct 410 ms 16112 KB Output is correct
39 Correct 288 ms 16144 KB Output is correct
40 Correct 371 ms 10876 KB Output is correct
41 Correct 522 ms 16444 KB Output is correct
42 Correct 255 ms 16356 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 175 ms 764 KB Output is correct
2 Correct 199 ms 844 KB Output is correct
3 Correct 196 ms 852 KB Output is correct
4 Correct 181 ms 880 KB Output is correct
5 Correct 173 ms 872 KB Output is correct
6 Correct 174 ms 776 KB Output is correct
7 Correct 183 ms 848 KB Output is correct
8 Correct 187 ms 976 KB Output is correct
9 Correct 182 ms 876 KB Output is correct
10 Correct 189 ms 912 KB Output is correct
11 Correct 191 ms 884 KB Output is correct
12 Correct 183 ms 904 KB Output is correct
13 Correct 191 ms 836 KB Output is correct
14 Correct 185 ms 888 KB Output is correct
15 Correct 186 ms 836 KB Output is correct
16 Correct 184 ms 872 KB Output is correct
17 Correct 184 ms 836 KB Output is correct
18 Correct 193 ms 868 KB Output is correct
19 Correct 429 ms 932 KB Output is correct
20 Correct 446 ms 912 KB Output is correct
21 Correct 229 ms 948 KB Output is correct
22 Correct 194 ms 824 KB Output is correct
23 Correct 227 ms 836 KB Output is correct
24 Correct 227 ms 884 KB Output is correct
25 Correct 221 ms 832 KB Output is correct
26 Correct 210 ms 836 KB Output is correct
27 Correct 183 ms 840 KB Output is correct
28 Correct 166 ms 764 KB Output is correct
29 Correct 184 ms 852 KB Output is correct
30 Correct 166 ms 1048 KB Output is correct
31 Correct 424 ms 912 KB Output is correct
32 Correct 422 ms 840 KB Output is correct
33 Correct 422 ms 804 KB Output is correct
34 Correct 382 ms 844 KB Output is correct
35 Correct 418 ms 1032 KB Output is correct
36 Correct 426 ms 828 KB Output is correct
37 Correct 424 ms 924 KB Output is correct
38 Correct 417 ms 876 KB Output is correct
39 Correct 416 ms 876 KB Output is correct
40 Correct 427 ms 836 KB Output is correct
41 Correct 419 ms 984 KB Output is correct
42 Correct 430 ms 940 KB Output is correct
43 Correct 394 ms 836 KB Output is correct
44 Correct 434 ms 836 KB Output is correct

Subtask #4
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 175 ms 764 KB Output is correct
2 Correct 199 ms 844 KB Output is correct
3 Correct 196 ms 852 KB Output is correct
4 Correct 181 ms 880 KB Output is correct
5 Correct 173 ms 872 KB Output is correct
6 Correct 174 ms 776 KB Output is correct
7 Correct 183 ms 848 KB Output is correct
8 Correct 187 ms 976 KB Output is correct
9 Correct 182 ms 876 KB Output is correct
10 Correct 189 ms 912 KB Output is correct
11 Correct 191 ms 884 KB Output is correct
12 Correct 183 ms 904 KB Output is correct
13 Correct 191 ms 836 KB Output is correct
14 Correct 185 ms 888 KB Output is correct
15 Correct 186 ms 836 KB Output is correct
16 Correct 184 ms 872 KB Output is correct
17 Correct 184 ms 836 KB Output is correct
18 Correct 193 ms 868 KB Output is correct
19 Correct 515 ms 16344 KB Output is correct
20 Correct 469 ms 16292 KB Output is correct
21 Correct 362 ms 15240 KB Output is correct
22 Correct 374 ms 13744 KB Output is correct
23 Correct 247 ms 1800 KB Output is correct
24 Correct 269 ms 1696 KB Output is correct
25 Correct 387 ms 16244 KB Output is correct
26 Correct 405 ms 16160 KB Output is correct
27 Correct 437 ms 16104 KB Output is correct
28 Correct 434 ms 16148 KB Output is correct
29 Correct 385 ms 15720 KB Output is correct
30 Correct 260 ms 1604 KB Output is correct
31 Correct 408 ms 16080 KB Output is correct
32 Correct 396 ms 14768 KB Output is correct
33 Correct 252 ms 1688 KB Output is correct
34 Correct 467 ms 16168 KB Output is correct
35 Correct 367 ms 12140 KB Output is correct
36 Correct 247 ms 1588 KB Output is correct
37 Correct 261 ms 1660 KB Output is correct
38 Correct 410 ms 16112 KB Output is correct
39 Correct 288 ms 16144 KB Output is correct
40 Correct 371 ms 10876 KB Output is correct
41 Correct 522 ms 16444 KB Output is correct
42 Correct 255 ms 16356 KB Output is correct
43 Correct 429 ms 932 KB Output is correct
44 Correct 446 ms 912 KB Output is correct
45 Correct 229 ms 948 KB Output is correct
46 Correct 194 ms 824 KB Output is correct
47 Correct 227 ms 836 KB Output is correct
48 Correct 227 ms 884 KB Output is correct
49 Correct 221 ms 832 KB Output is correct
50 Correct 210 ms 836 KB Output is correct
51 Correct 183 ms 840 KB Output is correct
52 Correct 166 ms 764 KB Output is correct
53 Correct 184 ms 852 KB Output is correct
54 Correct 166 ms 1048 KB Output is correct
55 Correct 424 ms 912 KB Output is correct
56 Correct 422 ms 840 KB Output is correct
57 Correct 422 ms 804 KB Output is correct
58 Correct 382 ms 844 KB Output is correct
59 Correct 418 ms 1032 KB Output is correct
60 Correct 426 ms 828 KB Output is correct
61 Correct 424 ms 924 KB Output is correct
62 Correct 417 ms 876 KB Output is correct
63 Correct 416 ms 876 KB Output is correct
64 Correct 427 ms 836 KB Output is correct
65 Correct 419 ms 984 KB Output is correct
66 Correct 430 ms 940 KB Output is correct
67 Correct 394 ms 836 KB Output is correct
68 Correct 434 ms 836 KB Output is correct
69 Correct 1433 ms 38268 KB Output is correct
70 Correct 1421 ms 45408 KB Output is correct
71 Correct 322 ms 2012 KB Output is correct
72 Correct 315 ms 1948 KB Output is correct
73 Correct 310 ms 1912 KB Output is correct
74 Correct 344 ms 13684 KB Output is correct
75 Correct 254 ms 1732 KB Output is correct
76 Correct 400 ms 16064 KB Output is correct
77 Correct 397 ms 13620 KB Output is correct
78 Correct 275 ms 1588 KB Output is correct
79 Correct 253 ms 1676 KB Output is correct
80 Correct 1180 ms 32688 KB Output is correct
81 Correct 640 ms 3132 KB Output is correct
82 Correct 1258 ms 45544 KB Output is correct
83 Correct 1207 ms 42968 KB Output is correct
84 Correct 638 ms 3188 KB Output is correct
85 Correct 635 ms 3176 KB Output is correct
86 Correct 1279 ms 34876 KB Output is correct
87 Correct 1444 ms 45516 KB Output is correct
88 Correct 674 ms 3148 KB Output is correct
89 Correct 1230 ms 40256 KB Output is correct
90 Correct 1407 ms 45620 KB Output is correct
91 Correct 681 ms 3172 KB Output is correct
92 Correct 1069 ms 34304 KB Output is correct
93 Correct 650 ms 3092 KB Output is correct
94 Correct 661 ms 3044 KB Output is correct
95 Correct 634 ms 3256 KB Output is correct
96 Correct 440 ms 16152 KB Output is correct
97 Correct 744 ms 45520 KB Output is correct
98 Correct 1311 ms 30276 KB Output is correct
99 Correct 1648 ms 45660 KB Output is correct
100 Correct 670 ms 45648 KB Output is correct