oj.uz

Submission #420358

# Submission time Handle Problem Language Result Execution time Memory
420358 2021-06-08T10:08:58 Z InternetPerson10 Crossing (JOI21_crossing) C++17
26 / 100
 7000 ms 65488 KB 
#include <bits/stdc++.h>
typedef long long ll;

using namespace std;

const ll MOD = 1000000007;

vector<int> nums[3];
vector<int> anss[9];
vector<int> tar;
vector<pair<pair<int, int>, int>> qs;
bool good[300001];
ll pow3[300001][4], sum3[300001][4];
ll ha[9][4];
vector<ll> ps = {1000000007, 1000000009, 1000000021, 1000000033};

vector<int> combine(vector<int> v1, vector<int> v2) {
	vector<int> v;
	v.resize(v1.size());
	for(int i = 0; i < v.size(); i++) v[i] = (6 - v1[i] - v2[i])%3;
	return v;
}

struct segTree {
	ll prime; int typ;
	vector<ll> nums, ops;
	int size = 1;
	void init(int n, ll p, int t) {
		while(size < n) size *= 2;
		vector<ll>().swap(nums);
		nums.resize(2*size, 0);
		ops.resize(2*size, -1);
		prime = p;
		typ = t;
	}
	void prop(int n, int d) {
		if(ops[n] == -1) return;
		if(n >= size) {
			nums[n] = ops[n];
			ops[n] = -1;
			return;
		}
		prop(2*n+1, d);
		prop(2*n+2, d);
		ops[2*n+1] = ops[n];
		ops[2*n+2] = ops[n];
		nums[n] = (ops[n] * sum3[d-1][typ])%prime;
		ops[n] = -1;
		return;
	}
	void set(int l, int r, int v, int n, int lx, int rx) {
		prop(n, rx - lx);
		if(l >= rx || lx >= r) return;
		if(l <= lx && rx <= r) {
			ops[n] = v;
			nums[n] = (ops[n] * sum3[rx-lx-1][typ])%prime;
			return;
		}
		int mid = (lx + rx)/2;
		set(l, r, v, 2*n+1, lx, mid);
		set(l, r, v, 2*n+2, mid, rx);
		nums[n] = (pow3[mid - lx][typ] * nums[2*n+1] + nums[2*n+2])%prime;
		return;
	}
	void set(int l, int r, int v) {
		set(l, r, v, 0, 0, size);
	}
	ll get() {
		prop(0, size);
		return nums[0];
	}
};

segTree st[4];

int getChar(char c) {
	if(c == 'J') return 0;
	if(c == 'O') return 1;
	return 2;
}

bool check() {
	for(int i = 0; i < 9; i++) {
		bool sad = false;
		for(int z = 0; z < 4; z++) {
			if(st[z].get() != ha[i][z]) sad = true;
			// cout << st[z].get() << ' ';
		}
		// cout << '\n';
		if(!sad) return true;
	}
	return false;
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	ll k = 1;
	for(int z = 0; z < 4; z++) {
		k = 1;
		for(int i = 0; i <= 300000; i++) {
			pow3[i][z] = k;
			k *= 3;
			if(k > ps[z]) k %= ps[z];
			if(i == 0) sum3[i][z] = pow3[i][z];
			else sum3[i][z] = (sum3[i-1][z] + pow3[i][z])%ps[z];
		}
	}
	int n, q;
	int size = 1;
	string s;
	cin >> n;
	while(size < n) {
		size *= 2;
	}
	for(int i = 0; i < 3; i++) {
		cin >> s;
		nums[i].resize(n);
		for(int j = 0; j < n; j++) {
			if(s.at(j) == 'J') nums[i][j] = 0;
			else if(s.at(j) == 'O') nums[i][j] = 1;
			else nums[i][j] = 2;
		}
		anss[i] = nums[i];
	}
	anss[3] = combine(nums[0], nums[1]);
	anss[4] = combine(nums[1], nums[2]);
	anss[5] = combine(nums[0], nums[2]);
	anss[6] = combine(anss[3], nums[2]);
	anss[7] = combine(anss[4], nums[0]);
	anss[8] = combine(anss[5], nums[1]);
	for(int z = 0; z < 4; z++) {
		for(int i = 0; i < 9; i++) {
			ll k = 0;
			for(int j = 0; j < size; j++) {
				k *= 3;
				if(j < anss[i].size()) k += anss[i][j];
				k %= ps[z];
			}
			ha[i][z] = k;
			// cout << ha[i][z] << ' ';
		}
		// cout << '\n';
	}
	cin >> q >> s;
	tar.resize(n);
	qs.resize(q);
	for(int z = 0; z < 4; z++) {
		st[z].init(n, ps[z], z);
	}
	for(int z = 0; z < 4; z++) {
		for(int i = 0; i < n; i++) {
			st[z].set(i, i+1, getChar(s.at(i)));
		}
	}
	good[0] = check();
	for(int i = 0; i < q; i++) {
		int x, y;
		char c;
		cin >> x >> y >> c;
		int z;
		if(c == 'J') z = 0;
		else if(c == 'O') z = 1;
		else z = 2;
		for(int m = 0; m < 4; m++) st[m].set(x-1, y, z);
		good[i+1] = check();
	}
	for(int i = 0; i <= q; i++) {
		if(good[i]) cout << "Yes\n";
		else cout << "No\n";
	}
}

Compilation message

Main.cpp: In function 'std::vector<int> combine(std::vector<int>, std::vector<int>)':
Main.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |  for(int i = 0; i < v.size(); i++) v[i] = (6 - v1[i] - v2[i])%3;
      |                 ~~^~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:137:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  137 |     if(j < anss[i].size()) k += anss[i][j];
      |        ~~^~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 21992 KB Output is correct
2 Correct 484 ms 22224 KB Output is correct
3 Correct 1181 ms 22336 KB Output is correct
4 Correct 416 ms 22084 KB Output is correct
5 Correct 383 ms 22100 KB Output is correct
6 Correct 375 ms 21992 KB Output is correct
7 Correct 356 ms 22156 KB Output is correct
8 Correct 417 ms 22428 KB Output is correct
9 Correct 419 ms 22240 KB Output is correct
10 Correct 451 ms 22244 KB Output is correct
11 Correct 429 ms 22268 KB Output is correct
12 Correct 419 ms 22176 KB Output is correct
13 Correct 400 ms 22172 KB Output is correct
14 Correct 411 ms 22428 KB Output is correct
15 Correct 398 ms 22252 KB Output is correct
16 Correct 417 ms 22212 KB Output is correct
17 Correct 394 ms 22180 KB Output is correct
18 Correct 1275 ms 22284 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 21992 KB Output is correct
2 Correct 484 ms 22224 KB Output is correct
3 Correct 1181 ms 22336 KB Output is correct
4 Correct 416 ms 22084 KB Output is correct
5 Correct 383 ms 22100 KB Output is correct
6 Correct 375 ms 21992 KB Output is correct
7 Correct 356 ms 22156 KB Output is correct
8 Correct 417 ms 22428 KB Output is correct
9 Correct 419 ms 22240 KB Output is correct
10 Correct 451 ms 22244 KB Output is correct
11 Correct 429 ms 22268 KB Output is correct
12 Correct 419 ms 22176 KB Output is correct
13 Correct 400 ms 22172 KB Output is correct
14 Correct 411 ms 22428 KB Output is correct
15 Correct 398 ms 22252 KB Output is correct
16 Correct 417 ms 22212 KB Output is correct
17 Correct 394 ms 22180 KB Output is correct
18 Correct 1275 ms 22284 KB Output is correct
19 Execution timed out 7053 ms 65488 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 21992 KB Output is correct
2 Correct 484 ms 22224 KB Output is correct
3 Correct 1181 ms 22336 KB Output is correct
4 Correct 416 ms 22084 KB Output is correct
5 Correct 383 ms 22100 KB Output is correct
6 Correct 375 ms 21992 KB Output is correct
7 Correct 356 ms 22156 KB Output is correct
8 Correct 417 ms 22428 KB Output is correct
9 Correct 419 ms 22240 KB Output is correct
10 Correct 451 ms 22244 KB Output is correct
11 Correct 429 ms 22268 KB Output is correct
12 Correct 419 ms 22176 KB Output is correct
13 Correct 400 ms 22172 KB Output is correct
14 Correct 411 ms 22428 KB Output is correct
15 Correct 398 ms 22252 KB Output is correct
16 Correct 417 ms 22212 KB Output is correct
17 Correct 394 ms 22180 KB Output is correct
18 Correct 1275 ms 22284 KB Output is correct
19 Correct 486 ms 22000 KB Output is correct
20 Correct 1175 ms 22176 KB Output is correct
21 Correct 439 ms 22176 KB Output is correct
22 Correct 369 ms 21956 KB Output is correct
23 Correct 441 ms 22192 KB Output is correct
24 Correct 428 ms 22064 KB Output is correct
25 Correct 459 ms 22152 KB Output is correct
26 Correct 358 ms 22064 KB Output is correct
27 Correct 459 ms 22220 KB Output is correct
28 Correct 380 ms 22072 KB Output is correct
29 Correct 398 ms 22212 KB Output is correct
30 Correct 392 ms 21984 KB Output is correct
31 Correct 422 ms 22180 KB Output is correct
32 Correct 428 ms 22248 KB Output is correct
33 Correct 405 ms 22196 KB Output is correct
34 Correct 386 ms 22012 KB Output is correct
35 Correct 415 ms 22232 KB Output is correct
36 Correct 439 ms 22204 KB Output is correct
37 Correct 429 ms 22264 KB Output is correct
38 Correct 404 ms 22228 KB Output is correct
39 Correct 503 ms 22220 KB Output is correct
40 Correct 404 ms 22216 KB Output is correct
41 Correct 437 ms 22156 KB Output is correct
42 Correct 442 ms 22176 KB Output is correct
43 Correct 398 ms 22204 KB Output is correct
44 Correct 453 ms 22152 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 21992 KB Output is correct
2 Correct 484 ms 22224 KB Output is correct
3 Correct 1181 ms 22336 KB Output is correct
4 Correct 416 ms 22084 KB Output is correct
5 Correct 383 ms 22100 KB Output is correct
6 Correct 375 ms 21992 KB Output is correct
7 Correct 356 ms 22156 KB Output is correct
8 Correct 417 ms 22428 KB Output is correct
9 Correct 419 ms 22240 KB Output is correct
10 Correct 451 ms 22244 KB Output is correct
11 Correct 429 ms 22268 KB Output is correct
12 Correct 419 ms 22176 KB Output is correct
13 Correct 400 ms 22172 KB Output is correct
14 Correct 411 ms 22428 KB Output is correct
15 Correct 398 ms 22252 KB Output is correct
16 Correct 417 ms 22212 KB Output is correct
17 Correct 394 ms 22180 KB Output is correct
18 Correct 1275 ms 22284 KB Output is correct
19 Execution timed out 7053 ms 65488 KB Time limit exceeded
20 Halted 0 ms 0 KB -