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답안 #376301

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
376301 2021-03-11T08:01:03 Z Nima_Naderi Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
100 / 100
 458 ms 769132 KB 
///In the name of GOD
//#pragma GCC optimize("O2")
//pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
const ll MXN = 400 + 3;
int n, cnt[3][MXN];
int dp[3][MXN][MXN][MXN];
vector<int> Pos[3];
string s;
inline void upd(int &x, int y){ if(x > y) x = y; }
inline int Calc(int ch, int a, int b, int c){
    int p = Pos[ch][(ch == 0 ? a : (ch == 1 ? b : c))];
    return max(0, cnt[0][p - 1] - a) + max(0, cnt[1][p - 1] - b) + max(0, cnt[2][p - 1] - c);;
}
int main(){
    ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
    cin >> n >> s;
    s = "$" + s;
    memset(dp, 31, sizeof dp);
    for(int i = 1; i <= n; i ++){
        switch(s[i]){
            case 'R' : s[i] = 'A'; break;
            case 'G' : s[i] = 'B'; break;
            case 'Y' : s[i] = 'C'; break;
        }
        cnt[0][i] = cnt[0][i - 1];
        cnt[1][i] = cnt[1][i - 1];
        cnt[2][i] = cnt[2][i - 1];
        cnt[s[i] - 'A'][i] ++;
        Pos[s[i] - 'A'].push_back(i);
    }
    if(max({cnt[0][n], cnt[1][n], cnt[2][n]}) > (n + 1) / 2)
        return cout << -1, 0;
    if(cnt[0][n]) dp[0][1][0][0] = Calc(0, 0, 0, 0);
    if(cnt[1][n]) dp[1][0][1][0] = Calc(1, 0, 0, 0);
    if(cnt[2][n]) dp[2][0][0][1] = Calc(2, 0, 0, 0);
    for(int a = 0; a <= cnt[0][n]; a ++){
        for(int b = 0; b <= cnt[1][n]; b ++){
            for(int c = 0; c <= cnt[2][n]; c ++){
                if(a + b + c == 0) continue;
                if(a < cnt[0][n]){
                    ll ca = min(dp[1][a][b][c], dp[2][a][b][c]);
                    ca += Calc(0, a, b, c);
                    upd(dp[0][a + 1][b][c], ca);
                }
                if(b < cnt[1][n]){
                    ll ca = min(dp[0][a][b][c], dp[2][a][b][c]);
                    ca += Calc(1, a, b, c);
                    upd(dp[1][a][b + 1][c], ca);
                }
                if(c < cnt[2][n]){
                    ll ca = min(dp[0][a][b][c], dp[1][a][b][c]);
                    ca += Calc(2, a, b, c);
                    upd(dp[2][a][b][c + 1], ca);
                }
            }
        }
    }
    int ans = dp[0][cnt[0][n]][cnt[1][n]][cnt[2][n]];
    ans = min(ans, dp[1][cnt[0][n]][cnt[1][n]][cnt[2][n]]);
    ans = min(ans, dp[2][cnt[0][n]][cnt[1][n]][cnt[2][n]]);
    cout << ans << '\n';
    return 0;
}
/*!
    HE'S AN INSTIGATOR,
    ENEMY ELIMINATOR,
    AND WHEN HE KNOCKS YOU BETTER
    YOU BETTER LET HIM IN.
*/
//! N.N

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 415 ms 768876 KB Output is correct
2 Correct 420 ms 768892 KB Output is correct
3 Correct 414 ms 768876 KB Output is correct
4 Correct 422 ms 768876 KB Output is correct
5 Correct 415 ms 768876 KB Output is correct
6 Correct 413 ms 768876 KB Output is correct
7 Correct 421 ms 768932 KB Output is correct
8 Correct 413 ms 768876 KB Output is correct
9 Correct 414 ms 768912 KB Output is correct
10 Correct 428 ms 768780 KB Output is correct
11 Correct 424 ms 769004 KB Output is correct
12 Correct 414 ms 768812 KB Output is correct
13 Correct 419 ms 768876 KB Output is correct
14 Correct 422 ms 768876 KB Output is correct
15 Correct 417 ms 768952 KB Output is correct
16 Correct 428 ms 768876 KB Output is correct
17 Correct 420 ms 768876 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 415 ms 768876 KB Output is correct
2 Correct 420 ms 768892 KB Output is correct
3 Correct 414 ms 768876 KB Output is correct
4 Correct 422 ms 768876 KB Output is correct
5 Correct 415 ms 768876 KB Output is correct
6 Correct 413 ms 768876 KB Output is correct
7 Correct 421 ms 768932 KB Output is correct
8 Correct 413 ms 768876 KB Output is correct
9 Correct 414 ms 768912 KB Output is correct
10 Correct 428 ms 768780 KB Output is correct
11 Correct 424 ms 769004 KB Output is correct
12 Correct 414 ms 768812 KB Output is correct
13 Correct 419 ms 768876 KB Output is correct
14 Correct 422 ms 768876 KB Output is correct
15 Correct 417 ms 768952 KB Output is correct
16 Correct 428 ms 768876 KB Output is correct
17 Correct 420 ms 768876 KB Output is correct
18 Correct 422 ms 768876 KB Output is correct
19 Correct 425 ms 768876 KB Output is correct
20 Correct 420 ms 768876 KB Output is correct
21 Correct 420 ms 768876 KB Output is correct
22 Correct 414 ms 768908 KB Output is correct
23 Correct 421 ms 768876 KB Output is correct
24 Correct 418 ms 768876 KB Output is correct
25 Correct 421 ms 768876 KB Output is correct
26 Correct 418 ms 768876 KB Output is correct
27 Correct 418 ms 768876 KB Output is correct
28 Correct 415 ms 768876 KB Output is correct
29 Correct 422 ms 768876 KB Output is correct
30 Correct 419 ms 769132 KB Output is correct
31 Correct 421 ms 768964 KB Output is correct
32 Correct 418 ms 768876 KB Output is correct
33 Correct 436 ms 768844 KB Output is correct
34 Correct 417 ms 768876 KB Output is correct
35 Correct 418 ms 768876 KB Output is correct
36 Correct 418 ms 768876 KB Output is correct
37 Correct 432 ms 768932 KB Output is correct
38 Correct 424 ms 768876 KB Output is correct
39 Correct 427 ms 768892 KB Output is correct
40 Correct 411 ms 768876 KB Output is correct
41 Correct 435 ms 768836 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 431 ms 768876 KB Output is correct
2 Correct 449 ms 768864 KB Output is correct
3 Correct 430 ms 768876 KB Output is correct
4 Correct 429 ms 768884 KB Output is correct
5 Correct 423 ms 768880 KB Output is correct
6 Correct 422 ms 768876 KB Output is correct
7 Correct 419 ms 768876 KB Output is correct
8 Correct 422 ms 768792 KB Output is correct
9 Correct 420 ms 768892 KB Output is correct
10 Correct 423 ms 768876 KB Output is correct
11 Correct 418 ms 768876 KB Output is correct
12 Correct 419 ms 769132 KB Output is correct
13 Correct 429 ms 768876 KB Output is correct
14 Correct 418 ms 768876 KB Output is correct
15 Correct 419 ms 769004 KB Output is correct
16 Correct 422 ms 768876 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 415 ms 768876 KB Output is correct
2 Correct 420 ms 768892 KB Output is correct
3 Correct 414 ms 768876 KB Output is correct
4 Correct 422 ms 768876 KB Output is correct
5 Correct 415 ms 768876 KB Output is correct
6 Correct 413 ms 768876 KB Output is correct
7 Correct 421 ms 768932 KB Output is correct
8 Correct 413 ms 768876 KB Output is correct
9 Correct 414 ms 768912 KB Output is correct
10 Correct 428 ms 768780 KB Output is correct
11 Correct 424 ms 769004 KB Output is correct
12 Correct 414 ms 768812 KB Output is correct
13 Correct 419 ms 768876 KB Output is correct
14 Correct 422 ms 768876 KB Output is correct
15 Correct 417 ms 768952 KB Output is correct
16 Correct 428 ms 768876 KB Output is correct
17 Correct 420 ms 768876 KB Output is correct
18 Correct 422 ms 768876 KB Output is correct
19 Correct 425 ms 768876 KB Output is correct
20 Correct 420 ms 768876 KB Output is correct
21 Correct 420 ms 768876 KB Output is correct
22 Correct 414 ms 768908 KB Output is correct
23 Correct 421 ms 768876 KB Output is correct
24 Correct 418 ms 768876 KB Output is correct
25 Correct 421 ms 768876 KB Output is correct
26 Correct 418 ms 768876 KB Output is correct
27 Correct 418 ms 768876 KB Output is correct
28 Correct 415 ms 768876 KB Output is correct
29 Correct 422 ms 768876 KB Output is correct
30 Correct 419 ms 769132 KB Output is correct
31 Correct 421 ms 768964 KB Output is correct
32 Correct 418 ms 768876 KB Output is correct
33 Correct 436 ms 768844 KB Output is correct
34 Correct 417 ms 768876 KB Output is correct
35 Correct 418 ms 768876 KB Output is correct
36 Correct 418 ms 768876 KB Output is correct
37 Correct 432 ms 768932 KB Output is correct
38 Correct 424 ms 768876 KB Output is correct
39 Correct 427 ms 768892 KB Output is correct
40 Correct 411 ms 768876 KB Output is correct
41 Correct 435 ms 768836 KB Output is correct
42 Correct 431 ms 768876 KB Output is correct
43 Correct 449 ms 768864 KB Output is correct
44 Correct 430 ms 768876 KB Output is correct
45 Correct 429 ms 768884 KB Output is correct
46 Correct 423 ms 768880 KB Output is correct
47 Correct 422 ms 768876 KB Output is correct
48 Correct 419 ms 768876 KB Output is correct
49 Correct 422 ms 768792 KB Output is correct
50 Correct 420 ms 768892 KB Output is correct
51 Correct 423 ms 768876 KB Output is correct
52 Correct 418 ms 768876 KB Output is correct
53 Correct 419 ms 769132 KB Output is correct
54 Correct 429 ms 768876 KB Output is correct
55 Correct 418 ms 768876 KB Output is correct
56 Correct 419 ms 769004 KB Output is correct
57 Correct 422 ms 768876 KB Output is correct
58 Correct 458 ms 769004 KB Output is correct
59 Correct 455 ms 768876 KB Output is correct
60 Correct 455 ms 768876 KB Output is correct
61 Correct 456 ms 769004 KB Output is correct
62 Correct 422 ms 768876 KB Output is correct
63 Correct 428 ms 768948 KB Output is correct
64 Correct 437 ms 768876 KB Output is correct
65 Correct 440 ms 768876 KB Output is correct
66 Correct 452 ms 768840 KB Output is correct
67 Correct 456 ms 768816 KB Output is correct
68 Correct 456 ms 769004 KB Output is correct
69 Correct 451 ms 768876 KB Output is correct
70 Correct 451 ms 768876 KB Output is correct
71 Correct 452 ms 769004 KB Output is correct
72 Correct 417 ms 768876 KB Output is correct
73 Correct 418 ms 768876 KB Output is correct