oj.uz

답안 #459554

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
459554 2021-08-08T16:03:41 Z TeaTime Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 485 ms 809704 KB 
//#pragma GCC optimize("O3")
//#pragma GCC target("avx2")
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <unordered_map>

using namespace std;

#define fastInp cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);

typedef int ll;
typedef long double ld;

const ll K = 410, INF = 1e9;

ll n;
ll dp[K][K][K][3];
ll cnt[3];
ll pos[3][K];
tuple<ll, ll, ll> prefCnt[K];

int main() {
	fastInp;

	cin >> n;
	string s;
	cin >> s;
	
	int i = 1;
	for (auto &c : s) {
		if (c == 'R') c = 0;
		if (c == 'G') c = 1;
		if (c == 'Y') c = 2;
		cnt[c]++;
		pos[c][cnt[c]] = i;
		prefCnt[i] = { cnt[0], cnt[1], cnt[2] };
		i++;
	}

	for (int i = 0; i < K; i++) {
		for (int j = 0; j < K; j++) {
			for (int k = 0; k < K; k++) {
				for (int t = 0; t < 3; t++) dp[i][j][k][t] = INF;
			}
		}
	}

	dp[0][0][0][0] = 0;
	dp[0][0][0][1] = 0;
	dp[0][0][0][2] = 0;

	for (int i = 0; i <= cnt[0]; i++) {
		for (int j = 0; j <= cnt[1]; j++) {
			for (int k = 0; k <= cnt[2]; k++) {
				for (int add = 0; add < 3; add++) {
					ll pn = 0;
					ll ind;

					if (add == 0) {
						ind = pos[add][i + 1];
						pn = max(0, get<1>(prefCnt[ind]) - j) + max(0, get<2>(prefCnt[ind]) - k);
					} else if (add == 1) {
						ind = pos[add][j + 1];
						pn = max(0, get<0>(prefCnt[ind]) - i) + max(0, get<2>(prefCnt[ind]) - k);
					} else {
						ind = pos[add][k + 1];
						pn = max(0, get<0>(prefCnt[ind]) - i) + max(0, get<1>(prefCnt[ind]) - j);
					}

					for (int t = 0; t < 3; t++) {
						if (add == t) continue;

						ll cnt = dp[i][j][k][t] + pn;
						if (add == 0) {
							dp[i + 1][j][k][add] = min(dp[i + 1][j][k][add], cnt);
						} else if (add == 1) {
							dp[i][j + 1][k][add] = min(dp[i][j + 1][k][add], cnt);
						} else {
							dp[i][j][k + 1][add] = min(dp[i][j][k + 1][add], cnt);
						}
					}
				}
			}
		}
	}
	ll a = INF;
	for (int i = 0; i < 3; i++) a = min(a, dp[cnt[0]][cnt[1]][cnt[2]][i]);
	
	if (a >= INF) {
		cout << "-1\n";
	} else {
		cout << a;
	}

	return 0;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:39:7: warning: array subscript has type 'char' [-Wchar-subscripts]
   39 |   cnt[c]++;
      |       ^
joi2019_ho_t3.cpp:40:7: warning: array subscript has type 'char' [-Wchar-subscripts]
   40 |   pos[c][cnt[c]] = i;
      |       ^
joi2019_ho_t3.cpp:40:14: warning: array subscript has type 'char' [-Wchar-subscripts]
   40 |   pos[c][cnt[c]] = i;
      |              ^

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 421 ms 809528 KB Output is correct
2 Correct 419 ms 809520 KB Output is correct
3 Correct 419 ms 809540 KB Output is correct
4 Correct 427 ms 809540 KB Output is correct
5 Correct 419 ms 809540 KB Output is correct
6 Correct 426 ms 809448 KB Output is correct
7 Correct 420 ms 809668 KB Output is correct
8 Correct 426 ms 809440 KB Output is correct
9 Correct 416 ms 809572 KB Output is correct
10 Correct 423 ms 809516 KB Output is correct
11 Correct 427 ms 809668 KB Output is correct
12 Correct 432 ms 809492 KB Output is correct
13 Correct 461 ms 809448 KB Output is correct
14 Correct 425 ms 809484 KB Output is correct
15 Correct 411 ms 809448 KB Output is correct
16 Correct 416 ms 809632 KB Output is correct
17 Correct 418 ms 809540 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 421 ms 809528 KB Output is correct
2 Correct 419 ms 809520 KB Output is correct
3 Correct 419 ms 809540 KB Output is correct
4 Correct 427 ms 809540 KB Output is correct
5 Correct 419 ms 809540 KB Output is correct
6 Correct 426 ms 809448 KB Output is correct
7 Correct 420 ms 809668 KB Output is correct
8 Correct 426 ms 809440 KB Output is correct
9 Correct 416 ms 809572 KB Output is correct
10 Correct 423 ms 809516 KB Output is correct
11 Correct 427 ms 809668 KB Output is correct
12 Correct 432 ms 809492 KB Output is correct
13 Correct 461 ms 809448 KB Output is correct
14 Correct 425 ms 809484 KB Output is correct
15 Correct 411 ms 809448 KB Output is correct
16 Correct 416 ms 809632 KB Output is correct
17 Correct 418 ms 809540 KB Output is correct
18 Correct 427 ms 809532 KB Output is correct
19 Correct 417 ms 809664 KB Output is correct
20 Correct 417 ms 809704 KB Output is correct
21 Correct 427 ms 809512 KB Output is correct
22 Correct 422 ms 809700 KB Output is correct
23 Correct 420 ms 809540 KB Output is correct
24 Correct 418 ms 809572 KB Output is correct
25 Correct 416 ms 809540 KB Output is correct
26 Correct 415 ms 809596 KB Output is correct
27 Correct 420 ms 809584 KB Output is correct
28 Correct 415 ms 809540 KB Output is correct
29 Correct 418 ms 809464 KB Output is correct
30 Correct 423 ms 809452 KB Output is correct
31 Correct 435 ms 809564 KB Output is correct
32 Correct 420 ms 809452 KB Output is correct
33 Correct 418 ms 809548 KB Output is correct
34 Correct 419 ms 809464 KB Output is correct
35 Correct 426 ms 809668 KB Output is correct
36 Correct 413 ms 809536 KB Output is correct
37 Correct 419 ms 809572 KB Output is correct
38 Correct 418 ms 809540 KB Output is correct
39 Correct 417 ms 809536 KB Output is correct
40 Correct 418 ms 809500 KB Output is correct
41 Correct 431 ms 809608 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 423 ms 809448 KB Output is correct
2 Correct 425 ms 809540 KB Output is correct
3 Correct 424 ms 809576 KB Output is correct
4 Correct 421 ms 809488 KB Output is correct
5 Correct 427 ms 809544 KB Output is correct
6 Correct 425 ms 809548 KB Output is correct
7 Correct 430 ms 809624 KB Output is correct
8 Correct 418 ms 809540 KB Output is correct
9 Correct 427 ms 809592 KB Output is correct
10 Correct 425 ms 809668 KB Output is correct
11 Correct 425 ms 809508 KB Output is correct
12 Correct 418 ms 809540 KB Output is correct
13 Correct 422 ms 809540 KB Output is correct
14 Correct 415 ms 809608 KB Output is correct
15 Correct 415 ms 809528 KB Output is correct
16 Correct 419 ms 809504 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 421 ms 809528 KB Output is correct
2 Correct 419 ms 809520 KB Output is correct
3 Correct 419 ms 809540 KB Output is correct
4 Correct 427 ms 809540 KB Output is correct
5 Correct 419 ms 809540 KB Output is correct
6 Correct 426 ms 809448 KB Output is correct
7 Correct 420 ms 809668 KB Output is correct
8 Correct 426 ms 809440 KB Output is correct
9 Correct 416 ms 809572 KB Output is correct
10 Correct 423 ms 809516 KB Output is correct
11 Correct 427 ms 809668 KB Output is correct
12 Correct 432 ms 809492 KB Output is correct
13 Correct 461 ms 809448 KB Output is correct
14 Correct 425 ms 809484 KB Output is correct
15 Correct 411 ms 809448 KB Output is correct
16 Correct 416 ms 809632 KB Output is correct
17 Correct 418 ms 809540 KB Output is correct
18 Correct 427 ms 809532 KB Output is correct
19 Correct 417 ms 809664 KB Output is correct
20 Correct 417 ms 809704 KB Output is correct
21 Correct 427 ms 809512 KB Output is correct
22 Correct 422 ms 809700 KB Output is correct
23 Correct 420 ms 809540 KB Output is correct
24 Correct 418 ms 809572 KB Output is correct
25 Correct 416 ms 809540 KB Output is correct
26 Correct 415 ms 809596 KB Output is correct
27 Correct 420 ms 809584 KB Output is correct
28 Correct 415 ms 809540 KB Output is correct
29 Correct 418 ms 809464 KB Output is correct
30 Correct 423 ms 809452 KB Output is correct
31 Correct 435 ms 809564 KB Output is correct
32 Correct 420 ms 809452 KB Output is correct
33 Correct 418 ms 809548 KB Output is correct
34 Correct 419 ms 809464 KB Output is correct
35 Correct 426 ms 809668 KB Output is correct
36 Correct 413 ms 809536 KB Output is correct
37 Correct 419 ms 809572 KB Output is correct
38 Correct 418 ms 809540 KB Output is correct
39 Correct 417 ms 809536 KB Output is correct
40 Correct 418 ms 809500 KB Output is correct
41 Correct 431 ms 809608 KB Output is correct
42 Correct 423 ms 809448 KB Output is correct
43 Correct 425 ms 809540 KB Output is correct
44 Correct 424 ms 809576 KB Output is correct
45 Correct 421 ms 809488 KB Output is correct
46 Correct 427 ms 809544 KB Output is correct
47 Correct 425 ms 809548 KB Output is correct
48 Correct 430 ms 809624 KB Output is correct
49 Correct 418 ms 809540 KB Output is correct
50 Correct 427 ms 809592 KB Output is correct
51 Correct 425 ms 809668 KB Output is correct
52 Correct 425 ms 809508 KB Output is correct
53 Correct 418 ms 809540 KB Output is correct
54 Correct 422 ms 809540 KB Output is correct
55 Correct 415 ms 809608 KB Output is correct
56 Correct 415 ms 809528 KB Output is correct
57 Correct 419 ms 809504 KB Output is correct
58 Correct 478 ms 809500 KB Output is correct
59 Correct 478 ms 809548 KB Output is correct
60 Correct 480 ms 809480 KB Output is correct
61 Correct 474 ms 809552 KB Output is correct
62 Correct 433 ms 809572 KB Output is correct
63 Correct 432 ms 809540 KB Output is correct
64 Correct 454 ms 809544 KB Output is correct
65 Correct 455 ms 809512 KB Output is correct
66 Correct 480 ms 809496 KB Output is correct
67 Correct 485 ms 809680 KB Output is correct
68 Correct 472 ms 809484 KB Output is correct
69 Correct 483 ms 809532 KB Output is correct
70 Correct 482 ms 809492 KB Output is correct
71 Correct 480 ms 809544 KB Output is correct
72 Correct 441 ms 809656 KB Output is correct
73 Correct 422 ms 809524 KB Output is correct