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답안 #376297

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
376297 2021-03-11T07:58:02 Z Nima_Naderi Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
75 / 100
 500 ms 809836 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 + 10;
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 = Calc(0, a, b, c);
                    upd(dp[0][a + 1][b][c], dp[1][a][b][c] + ca);
                    upd(dp[0][a + 1][b][c], dp[2][a][b][c] + ca);
                }
                if(b < cnt[1][n]){
                    ll ca = Calc(1, a, b, c);
                    upd(dp[1][a][b + 1][c], dp[0][a][b][c] + ca);
                    upd(dp[1][a][b + 1][c], dp[2][a][b][c] + ca);
                }
                if(c < cnt[2][n]){
                    ll ca = Calc(2, a, b, c);
                    upd(dp[2][a][b][c + 1], dp[0][a][b][c] + ca);
                    upd(dp[2][a][b][c + 1], dp[1][a][b][c] + 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 434 ms 809624 KB Output is correct
2 Correct 439 ms 809708 KB Output is correct
3 Correct 440 ms 809708 KB Output is correct
4 Correct 434 ms 809708 KB Output is correct
5 Correct 446 ms 809544 KB Output is correct
6 Correct 439 ms 809708 KB Output is correct
7 Correct 437 ms 809680 KB Output is correct
8 Correct 436 ms 809708 KB Output is correct
9 Correct 437 ms 809708 KB Output is correct
10 Correct 435 ms 809580 KB Output is correct
11 Correct 440 ms 809580 KB Output is correct
12 Correct 431 ms 809708 KB Output is correct
13 Correct 457 ms 809708 KB Output is correct
14 Correct 437 ms 809580 KB Output is correct
15 Correct 437 ms 809580 KB Output is correct
16 Correct 438 ms 809708 KB Output is correct
17 Correct 443 ms 809580 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 434 ms 809624 KB Output is correct
2 Correct 439 ms 809708 KB Output is correct
3 Correct 440 ms 809708 KB Output is correct
4 Correct 434 ms 809708 KB Output is correct
5 Correct 446 ms 809544 KB Output is correct
6 Correct 439 ms 809708 KB Output is correct
7 Correct 437 ms 809680 KB Output is correct
8 Correct 436 ms 809708 KB Output is correct
9 Correct 437 ms 809708 KB Output is correct
10 Correct 435 ms 809580 KB Output is correct
11 Correct 440 ms 809580 KB Output is correct
12 Correct 431 ms 809708 KB Output is correct
13 Correct 457 ms 809708 KB Output is correct
14 Correct 437 ms 809580 KB Output is correct
15 Correct 437 ms 809580 KB Output is correct
16 Correct 438 ms 809708 KB Output is correct
17 Correct 443 ms 809580 KB Output is correct
18 Correct 450 ms 809584 KB Output is correct
19 Correct 441 ms 809580 KB Output is correct
20 Correct 434 ms 809580 KB Output is correct
21 Correct 439 ms 809708 KB Output is correct
22 Correct 439 ms 809692 KB Output is correct
23 Correct 434 ms 809580 KB Output is correct
24 Correct 436 ms 809580 KB Output is correct
25 Correct 441 ms 809716 KB Output is correct
26 Correct 439 ms 809580 KB Output is correct
27 Correct 435 ms 809580 KB Output is correct
28 Correct 440 ms 809708 KB Output is correct
29 Correct 437 ms 809572 KB Output is correct
30 Correct 439 ms 809680 KB Output is correct
31 Correct 433 ms 809580 KB Output is correct
32 Correct 440 ms 809708 KB Output is correct
33 Correct 444 ms 809580 KB Output is correct
34 Correct 434 ms 809708 KB Output is correct
35 Correct 458 ms 809708 KB Output is correct
36 Correct 435 ms 809580 KB Output is correct
37 Correct 432 ms 809580 KB Output is correct
38 Correct 440 ms 809656 KB Output is correct
39 Correct 432 ms 809708 KB Output is correct
40 Correct 434 ms 809580 KB Output is correct
41 Correct 440 ms 809640 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 441 ms 809708 KB Output is correct
2 Correct 469 ms 809652 KB Output is correct
3 Correct 438 ms 809708 KB Output is correct
4 Correct 440 ms 809724 KB Output is correct
5 Correct 437 ms 809612 KB Output is correct
6 Correct 438 ms 809580 KB Output is correct
7 Correct 439 ms 809580 KB Output is correct
8 Correct 440 ms 809580 KB Output is correct
9 Correct 437 ms 809588 KB Output is correct
10 Correct 437 ms 809708 KB Output is correct
11 Correct 440 ms 809580 KB Output is correct
12 Correct 436 ms 809568 KB Output is correct
13 Correct 441 ms 809616 KB Output is correct
14 Correct 436 ms 809580 KB Output is correct
15 Correct 440 ms 809580 KB Output is correct
16 Correct 436 ms 809804 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 434 ms 809624 KB Output is correct
2 Correct 439 ms 809708 KB Output is correct
3 Correct 440 ms 809708 KB Output is correct
4 Correct 434 ms 809708 KB Output is correct
5 Correct 446 ms 809544 KB Output is correct
6 Correct 439 ms 809708 KB Output is correct
7 Correct 437 ms 809680 KB Output is correct
8 Correct 436 ms 809708 KB Output is correct
9 Correct 437 ms 809708 KB Output is correct
10 Correct 435 ms 809580 KB Output is correct
11 Correct 440 ms 809580 KB Output is correct
12 Correct 431 ms 809708 KB Output is correct
13 Correct 457 ms 809708 KB Output is correct
14 Correct 437 ms 809580 KB Output is correct
15 Correct 437 ms 809580 KB Output is correct
16 Correct 438 ms 809708 KB Output is correct
17 Correct 443 ms 809580 KB Output is correct
18 Correct 450 ms 809584 KB Output is correct
19 Correct 441 ms 809580 KB Output is correct
20 Correct 434 ms 809580 KB Output is correct
21 Correct 439 ms 809708 KB Output is correct
22 Correct 439 ms 809692 KB Output is correct
23 Correct 434 ms 809580 KB Output is correct
24 Correct 436 ms 809580 KB Output is correct
25 Correct 441 ms 809716 KB Output is correct
26 Correct 439 ms 809580 KB Output is correct
27 Correct 435 ms 809580 KB Output is correct
28 Correct 440 ms 809708 KB Output is correct
29 Correct 437 ms 809572 KB Output is correct
30 Correct 439 ms 809680 KB Output is correct
31 Correct 433 ms 809580 KB Output is correct
32 Correct 440 ms 809708 KB Output is correct
33 Correct 444 ms 809580 KB Output is correct
34 Correct 434 ms 809708 KB Output is correct
35 Correct 458 ms 809708 KB Output is correct
36 Correct 435 ms 809580 KB Output is correct
37 Correct 432 ms 809580 KB Output is correct
38 Correct 440 ms 809656 KB Output is correct
39 Correct 432 ms 809708 KB Output is correct
40 Correct 434 ms 809580 KB Output is correct
41 Correct 440 ms 809640 KB Output is correct
42 Correct 441 ms 809708 KB Output is correct
43 Correct 469 ms 809652 KB Output is correct
44 Correct 438 ms 809708 KB Output is correct
45 Correct 440 ms 809724 KB Output is correct
46 Correct 437 ms 809612 KB Output is correct
47 Correct 438 ms 809580 KB Output is correct
48 Correct 439 ms 809580 KB Output is correct
49 Correct 440 ms 809580 KB Output is correct
50 Correct 437 ms 809588 KB Output is correct
51 Correct 437 ms 809708 KB Output is correct
52 Correct 440 ms 809580 KB Output is correct
53 Correct 436 ms 809568 KB Output is correct
54 Correct 441 ms 809616 KB Output is correct
55 Correct 436 ms 809580 KB Output is correct
56 Correct 440 ms 809580 KB Output is correct
57 Correct 436 ms 809804 KB Output is correct
58 Correct 467 ms 809580 KB Output is correct
59 Correct 483 ms 809580 KB Output is correct
60 Correct 469 ms 809836 KB Output is correct
61 Correct 478 ms 809752 KB Output is correct
62 Correct 439 ms 809588 KB Output is correct
63 Correct 449 ms 809648 KB Output is correct
64 Correct 464 ms 809580 KB Output is correct
65 Correct 465 ms 809604 KB Output is correct
66 Correct 468 ms 809648 KB Output is correct
67 Correct 487 ms 809560 KB Output is correct
68 Execution timed out 504 ms 809656 KB Time limit exceeded
69 Halted 0 ms 0 KB -