oj.uz

답안 #369355

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
369355 2021-02-21T12:11:45 Z AriaH Growing Vegetable is Fun 3 (JOI19_ho_t3) C++11
100 / 100
 494 ms 502252 KB 
/** Im the best because i work as hard as i possibly can **/

#pragma GCC optimize("O2")
#include <bits/stdc++.h>
using namespace std;

typedef long long                   ll;
typedef long double                 ld;
typedef pair<int,int>               pii;
typedef pair<ll,ll>                 pll;
#define all(x)                      (x).begin(),(x).end()
#define F                           first
#define S                           second
#define Mp                          make_pair
#define fast_io                     ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io                     freopen("in.txt" , "r+" , stdin) ; freopen("out.txt" , "w+" , stdout);
#define endl                        "\n"

const int N = 4e2 + 10;
const ll mod = 1e9 + 7;
const ll mod2 = 998244353;
const ll inf = 5e8;
const int LOG = 22;

ll pw(ll a , ll b, ll M)  { return (!b ? 1 : (b & 1 ? (a * pw(a * a % M, b / 2, M)) % M : pw(a * a % M, b / 2, M))); }

/// dp[tp][i][j][k] -> age 

char C[N];

string s;

int n, cnt[3], nxt[3][N][N][N], dp[3][N][N][N];

vector < int > pos[3];

inline int Less(int type, int x, int used)
{
	return lower_bound(pos[type].begin() + used, pos[type].end(), x) - pos[type].begin() - used;
}

int main()
{
	scanf("%d", &n);
	scanf("%s", C);
	s = C; s = "#" + s;
	for(int i = 1; i <= n; i ++)
	{
		if(s[i] == 'R') s[i] = '0';
		else if(s[i] == 'G') s[i] = '1';
		else s[i] = '2';
		cnt[s[i] - '0'] ++;
		pos[s[i] - '0'].push_back(i);
	}
	for(int i = 0; i <= cnt[0]; i ++)
	{
		for(int j = 0; j <= cnt[1]; j ++)
		{
			for(int k = 0; k <= cnt[2]; k ++)
			{
				if(i != cnt[0])
				{
					int id = pos[0][i];
					nxt[0][i][j][k] = Less(1, id, j) + Less(2, id, k);
				}
				else nxt[0][i][j][k] = inf;
				if(j != cnt[1])
				{
					int id = pos[1][j];
					nxt[1][i][j][k] = Less(0, id, i) + Less(2, id, k);
				}
				else nxt[1][i][j][k] = inf;
				if(k != cnt[2])
				{
					int id = pos[2][k];
					nxt[2][i][j][k] = Less(0, id, i) + Less(1, id, j);
				}	
				else nxt[2][i][j][k] = inf;
				///printf("i = %d j = %d k = %d nxt[0] = %d  nxt[1] = %d  nxt[2] = %d\n", i, j, k, nxt[0][i][j][k], nxt[1][i][j][k], nxt[2][i][j][k]);
			}
		}
	}
	///printf("\n\n");
	for(int i = 0; i < N; i ++) for(int j = 0; j < N; j ++) dp[0][0][i][j] = dp[1][0][i][j] = dp[2][0][i][j] = inf;
	dp[0][0][0][0] = dp[1][0][0][0] = dp[2][0][0][0] = 0;
	for(int i = 1; i <= n; i ++)
	{
		for(int j = 0; j <= min(i, cnt[0]); j ++)
		{
			for(int k = 0; k <= min(i - j, cnt[1]); k ++)
			{
				dp[0][i][j][k] = dp[1][i][j][k] = dp[2][i][j][k] = inf;
				if(i - j - k > cnt[2])
				{
					continue;
				}
				if(j) dp[0][i][j][k] = min(dp[1][i - 1][j - 1][k], dp[2][i - 1][j - 1][k]) + nxt[0][j - 1][k][i - j - k];
				if(k) dp[1][i][j][k] = min(dp[0][i - 1][j][k - 1], dp[2][i - 1][j][k - 1]) + nxt[1][j][k - 1][i - j - k];
				if(i != j + k) dp[2][i][j][k] = min(dp[0][i - 1][j][k], dp[1][i - 1][j][k]) + nxt[2][j][k][i - j - k - 1];
			}
		}
	}
	/*for(int i = 1; i <= n; i ++)
	{
		for(int j = 0; j <= cnt[0]; j ++)
		{
			for(int k = 0; k <= cnt[1]; k ++)
			{
				printf("i = %d j = %d k = %d dp[0] = %d  dp[1] = %d  dp[2] = %d\n", i, j, k, dp[0][i][j][k], dp[1][i][j][k], dp[2][i][j][k]);
			}
		}
	}
	*/
	int ans = min({dp[0][n][cnt[0]][cnt[1]], dp[1][n][cnt[0]][cnt[1]], dp[2][n][cnt[0]][cnt[1]]});
	if(ans >= inf) ans = -1;
	printf("%d\n", ans);
	return 0;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:44:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   44 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
joi2019_ho_t3.cpp:45:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   45 |  scanf("%s", C);
      |  ~~~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2412 KB Output is correct
2 Correct 2 ms 2412 KB Output is correct
3 Correct 2 ms 2412 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 3052 KB Output is correct
6 Correct 2 ms 3180 KB Output is correct
7 Correct 2 ms 3180 KB Output is correct
8 Correct 2 ms 3180 KB Output is correct
9 Correct 2 ms 3308 KB Output is correct
10 Correct 2 ms 3436 KB Output is correct
11 Correct 2 ms 3180 KB Output is correct
12 Correct 2 ms 3052 KB Output is correct
13 Correct 2 ms 3072 KB Output is correct
14 Correct 2 ms 3180 KB Output is correct
15 Correct 2 ms 2924 KB Output is correct
16 Correct 2 ms 3308 KB Output is correct
17 Correct 2 ms 2540 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2412 KB Output is correct
2 Correct 2 ms 2412 KB Output is correct
3 Correct 2 ms 2412 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 3052 KB Output is correct
6 Correct 2 ms 3180 KB Output is correct
7 Correct 2 ms 3180 KB Output is correct
8 Correct 2 ms 3180 KB Output is correct
9 Correct 2 ms 3308 KB Output is correct
10 Correct 2 ms 3436 KB Output is correct
11 Correct 2 ms 3180 KB Output is correct
12 Correct 2 ms 3052 KB Output is correct
13 Correct 2 ms 3072 KB Output is correct
14 Correct 2 ms 3180 KB Output is correct
15 Correct 2 ms 2924 KB Output is correct
16 Correct 2 ms 3308 KB Output is correct
17 Correct 2 ms 2540 KB Output is correct
18 Correct 8 ms 11136 KB Output is correct
19 Correct 7 ms 9836 KB Output is correct
20 Correct 7 ms 11500 KB Output is correct
21 Correct 7 ms 10732 KB Output is correct
22 Correct 7 ms 10604 KB Output is correct
23 Correct 6 ms 9708 KB Output is correct
24 Correct 5 ms 7532 KB Output is correct
25 Correct 9 ms 15340 KB Output is correct
26 Correct 9 ms 14976 KB Output is correct
27 Correct 9 ms 12908 KB Output is correct
28 Correct 6 ms 10732 KB Output is correct
29 Correct 6 ms 10860 KB Output is correct
30 Correct 6 ms 9836 KB Output is correct
31 Correct 6 ms 9068 KB Output is correct
32 Correct 6 ms 10220 KB Output is correct
33 Correct 8 ms 13312 KB Output is correct
34 Correct 7 ms 12396 KB Output is correct
35 Correct 7 ms 11372 KB Output is correct
36 Correct 6 ms 9964 KB Output is correct
37 Correct 5 ms 8172 KB Output is correct
38 Correct 6 ms 9068 KB Output is correct
39 Correct 7 ms 10348 KB Output is correct
40 Correct 2 ms 3308 KB Output is correct
41 Correct 5 ms 8044 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2412 KB Output is correct
2 Correct 287 ms 493932 KB Output is correct
3 Correct 282 ms 492140 KB Output is correct
4 Correct 283 ms 493932 KB Output is correct
5 Correct 282 ms 494036 KB Output is correct
6 Correct 281 ms 494060 KB Output is correct
7 Correct 293 ms 491244 KB Output is correct
8 Correct 288 ms 491136 KB Output is correct
9 Correct 279 ms 489164 KB Output is correct
10 Correct 279 ms 493932 KB Output is correct
11 Correct 306 ms 494024 KB Output is correct
12 Correct 77 ms 135660 KB Output is correct
13 Correct 131 ms 235372 KB Output is correct
14 Correct 189 ms 338668 KB Output is correct
15 Correct 284 ms 493036 KB Output is correct
16 Correct 281 ms 493164 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2412 KB Output is correct
2 Correct 2 ms 2412 KB Output is correct
3 Correct 2 ms 2412 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 3052 KB Output is correct
6 Correct 2 ms 3180 KB Output is correct
7 Correct 2 ms 3180 KB Output is correct
8 Correct 2 ms 3180 KB Output is correct
9 Correct 2 ms 3308 KB Output is correct
10 Correct 2 ms 3436 KB Output is correct
11 Correct 2 ms 3180 KB Output is correct
12 Correct 2 ms 3052 KB Output is correct
13 Correct 2 ms 3072 KB Output is correct
14 Correct 2 ms 3180 KB Output is correct
15 Correct 2 ms 2924 KB Output is correct
16 Correct 2 ms 3308 KB Output is correct
17 Correct 2 ms 2540 KB Output is correct
18 Correct 8 ms 11136 KB Output is correct
19 Correct 7 ms 9836 KB Output is correct
20 Correct 7 ms 11500 KB Output is correct
21 Correct 7 ms 10732 KB Output is correct
22 Correct 7 ms 10604 KB Output is correct
23 Correct 6 ms 9708 KB Output is correct
24 Correct 5 ms 7532 KB Output is correct
25 Correct 9 ms 15340 KB Output is correct
26 Correct 9 ms 14976 KB Output is correct
27 Correct 9 ms 12908 KB Output is correct
28 Correct 6 ms 10732 KB Output is correct
29 Correct 6 ms 10860 KB Output is correct
30 Correct 6 ms 9836 KB Output is correct
31 Correct 6 ms 9068 KB Output is correct
32 Correct 6 ms 10220 KB Output is correct
33 Correct 8 ms 13312 KB Output is correct
34 Correct 7 ms 12396 KB Output is correct
35 Correct 7 ms 11372 KB Output is correct
36 Correct 6 ms 9964 KB Output is correct
37 Correct 5 ms 8172 KB Output is correct
38 Correct 6 ms 9068 KB Output is correct
39 Correct 7 ms 10348 KB Output is correct
40 Correct 2 ms 3308 KB Output is correct
41 Correct 5 ms 8044 KB Output is correct
42 Correct 2 ms 2412 KB Output is correct
43 Correct 287 ms 493932 KB Output is correct
44 Correct 282 ms 492140 KB Output is correct
45 Correct 283 ms 493932 KB Output is correct
46 Correct 282 ms 494036 KB Output is correct
47 Correct 281 ms 494060 KB Output is correct
48 Correct 293 ms 491244 KB Output is correct
49 Correct 288 ms 491136 KB Output is correct
50 Correct 279 ms 489164 KB Output is correct
51 Correct 279 ms 493932 KB Output is correct
52 Correct 306 ms 494024 KB Output is correct
53 Correct 77 ms 135660 KB Output is correct
54 Correct 131 ms 235372 KB Output is correct
55 Correct 189 ms 338668 KB Output is correct
56 Correct 284 ms 493036 KB Output is correct
57 Correct 281 ms 493164 KB Output is correct
58 Correct 434 ms 287212 KB Output is correct
59 Correct 494 ms 334956 KB Output is correct
60 Correct 464 ms 322264 KB Output is correct
61 Correct 447 ms 308460 KB Output is correct
62 Correct 333 ms 502252 KB Output is correct
63 Correct 299 ms 481516 KB Output is correct
64 Correct 371 ms 449548 KB Output is correct
65 Correct 420 ms 396780 KB Output is correct
66 Correct 343 ms 312272 KB Output is correct
67 Correct 308 ms 278892 KB Output is correct
68 Correct 355 ms 316396 KB Output is correct
69 Correct 371 ms 313580 KB Output is correct
70 Correct 402 ms 319596 KB Output is correct
71 Correct 451 ms 329964 KB Output is correct
72 Correct 303 ms 413036 KB Output is correct
73 Correct 22 ms 19308 KB Output is correct