oj.uz

답안 #155674

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
155674 2019-09-29T16:26:00 Z popovicirobert Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
75 / 100
 500 ms 134520 KB 
#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long



#if 0
const int MOD = ;

inline int lgput(int a, int b) {
    int ans = 1;
    while(b > 0) {
        if(b & 1) ans = (1LL * ans * a) % MOD;
        b >>= 1;
        a = (1LL * a * a) % MOD;
    }
    return ans;
}

inline void mod(int &x) {
    if(x >= MOD)
        x -= MOD;
}

inline void add(int &x, int y) {
    x += y;
    mod(x);
}

inline void sub(int &x, int y) {
    x += MOD - y;
    mod(x);
}

inline void mul(int &x, int y) {
    x = (1LL * x * y) % MOD;
}

inline int inv(int x) {
    return lgput(x, MOD - 2);
}
#endif

#if 0
int fact[], invfact[];

inline void prec(int n) {
    fact[0] = 1;
    for(int i = 1; i <= n; i++) {
        fact[i] = (1LL * fact[i - 1] * i) % MOD;
    }
    invfact[n] = lgput(fact[n], MOD - 2);
    for(int i = n - 1; i >= 0; i--) {
        invfact[i] = (1LL * invfact[i + 1] * (i + 1)) % MOD;
    }
}

inline int comb(int n, int k) {
    if(n < k) return 0;
    return (1LL * fact[n] * (1LL * invfact[k] * invfact[n - k] % MOD)) % MOD;
}
#endif

using namespace std;

const int INF = 1e9;
const int MAXN = 400;

int num[3][3][MAXN + 1][MAXN + 1];

int main() {
#if 0
    ifstream cin("A.in");
    ofstream cout("A.out");
#endif
    int i, j, n;
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);

    string str;
    cin >> n >> str;
    str = " " + str;

    vector <int> ind('Z'), fr(3), pos[3];
    ind['R'] = 0, ind['Y'] = 1, ind['G'] = 2;

    for(i = 1; i <= n; i++) {
        str[i] = ind[str[i]];
        fr[str[i]]++;
    }
    for(i = 0; i < 3; i++) {
        pos[i].push_back(0);
    }
    for(i = 1; i <= n; i++) {
        pos[str[i]].push_back(i);
    }

    for(int a = 0; a < 3; a++) {
        for(int b = 0; b < 3; b++) {
            for(i = 0; i <= fr[a]; i++) {
                int cnt = 0;
                for(j = 0; j <= fr[b]; j++) {
                    if(pos[a][i] < pos[b][j]) {
                        cnt++;
                    }
                    num[a][b][i][j] = cnt;
                }
            }
        }
    }

    vector < vector < vector < vector <int> > > > dp(fr[0] + 1);
    for(auto &a : dp) {
        a.resize(fr[1] + 1);
        for(auto &b : a) {
            b.resize(fr[2] + 1);
            for(auto &c : b) {
                c.resize(3, INF);
            }
        }
    }

    for(i = 0; i < 3; i++) {
        dp[0][0][0][i] = 0;
    }

    for(int p = 1; p <= n; p++) {
        for(int a = 0; a <= p && a <= fr[0]; a++) {
            for(int b = 0; a + b <= p && b <= fr[1]; b++) {
                int c = p - a - b;
                if(c > fr[2]) continue;

                for(int d = 0; d < 3; d++) {
                    for(int e = 0; e < 3; e++) {
                        if(d == e) continue;

                        int cur;
                        if(d == 0) {
                            if(a == 0) continue;
                            cur = dp[a - 1][b][c][e] + (pos[0][a] + num[0][1][a][b] + num[0][2][a][c]) - p;
                        }
                        if(d == 1) {
                            if(b == 0) continue;
                            cur = dp[a][b - 1][c][e] + (pos[1][b] + num[1][0][b][a] + num[1][2][b][c]) - p;
                        }
                        if(d == 2) {
                            if(c == 0) continue;
                            cur = dp[a][b][c - 1][e] + (pos[2][c] + num[2][0][c][a] + num[2][1][c][b]) - p;
                        }
                        dp[a][b][c][d] = min(dp[a][b][c][d], cur);
                    }
                }
            }
        }
    }

    int ans = INF;
    for(i = 0; i < 3; i++) {
        ans = min(ans, dp[fr[0]][fr[1]][fr[2]][i]);
    }
    if(ans == INF) {
        ans = -1;
    }
    cout << ans;

    return 0;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:96:19: warning: array subscript has type 'char' [-Wchar-subscripts]
         pos[str[i]].push_back(i);
                   ^

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 420 KB Output is correct
9 Correct 3 ms 504 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 9 ms 504 KB Output is correct
14 Correct 3 ms 504 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 376 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 420 KB Output is correct
9 Correct 3 ms 504 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 9 ms 504 KB Output is correct
14 Correct 3 ms 504 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 4 ms 1156 KB Output is correct
19 Correct 4 ms 1124 KB Output is correct
20 Correct 3 ms 1144 KB Output is correct
21 Correct 4 ms 1144 KB Output is correct
22 Correct 4 ms 1144 KB Output is correct
23 Correct 4 ms 1144 KB Output is correct
24 Correct 4 ms 1144 KB Output is correct
25 Correct 3 ms 760 KB Output is correct
26 Correct 3 ms 760 KB Output is correct
27 Correct 4 ms 1024 KB Output is correct
28 Correct 4 ms 1144 KB Output is correct
29 Correct 4 ms 1144 KB Output is correct
30 Correct 4 ms 1144 KB Output is correct
31 Correct 4 ms 1144 KB Output is correct
32 Correct 4 ms 1144 KB Output is correct
33 Correct 3 ms 760 KB Output is correct
34 Correct 3 ms 888 KB Output is correct
35 Correct 4 ms 1016 KB Output is correct
36 Correct 4 ms 1144 KB Output is correct
37 Correct 3 ms 1016 KB Output is correct
38 Correct 4 ms 1144 KB Output is correct
39 Correct 5 ms 1144 KB Output is correct
40 Correct 3 ms 632 KB Output is correct
41 Correct 3 ms 888 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 11 ms 4600 KB Output is correct
3 Correct 11 ms 4472 KB Output is correct
4 Correct 10 ms 4472 KB Output is correct
5 Correct 11 ms 4544 KB Output is correct
6 Correct 11 ms 4472 KB Output is correct
7 Correct 11 ms 4472 KB Output is correct
8 Correct 10 ms 4472 KB Output is correct
9 Correct 14 ms 4472 KB Output is correct
10 Correct 11 ms 4472 KB Output is correct
11 Correct 11 ms 4472 KB Output is correct
12 Correct 5 ms 1912 KB Output is correct
13 Correct 6 ms 2684 KB Output is correct
14 Correct 8 ms 3448 KB Output is correct
15 Correct 11 ms 4576 KB Output is correct
16 Correct 11 ms 4532 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 420 KB Output is correct
9 Correct 3 ms 504 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 9 ms 504 KB Output is correct
14 Correct 3 ms 504 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 4 ms 1156 KB Output is correct
19 Correct 4 ms 1124 KB Output is correct
20 Correct 3 ms 1144 KB Output is correct
21 Correct 4 ms 1144 KB Output is correct
22 Correct 4 ms 1144 KB Output is correct
23 Correct 4 ms 1144 KB Output is correct
24 Correct 4 ms 1144 KB Output is correct
25 Correct 3 ms 760 KB Output is correct
26 Correct 3 ms 760 KB Output is correct
27 Correct 4 ms 1024 KB Output is correct
28 Correct 4 ms 1144 KB Output is correct
29 Correct 4 ms 1144 KB Output is correct
30 Correct 4 ms 1144 KB Output is correct
31 Correct 4 ms 1144 KB Output is correct
32 Correct 4 ms 1144 KB Output is correct
33 Correct 3 ms 760 KB Output is correct
34 Correct 3 ms 888 KB Output is correct
35 Correct 4 ms 1016 KB Output is correct
36 Correct 4 ms 1144 KB Output is correct
37 Correct 3 ms 1016 KB Output is correct
38 Correct 4 ms 1144 KB Output is correct
39 Correct 5 ms 1144 KB Output is correct
40 Correct 3 ms 632 KB Output is correct
41 Correct 3 ms 888 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 11 ms 4600 KB Output is correct
44 Correct 11 ms 4472 KB Output is correct
45 Correct 10 ms 4472 KB Output is correct
46 Correct 11 ms 4544 KB Output is correct
47 Correct 11 ms 4472 KB Output is correct
48 Correct 11 ms 4472 KB Output is correct
49 Correct 10 ms 4472 KB Output is correct
50 Correct 14 ms 4472 KB Output is correct
51 Correct 11 ms 4472 KB Output is correct
52 Correct 11 ms 4472 KB Output is correct
53 Correct 5 ms 1912 KB Output is correct
54 Correct 6 ms 2684 KB Output is correct
55 Correct 8 ms 3448 KB Output is correct
56 Correct 11 ms 4576 KB Output is correct
57 Correct 11 ms 4532 KB Output is correct
58 Execution timed out 559 ms 134520 KB Time limit exceeded
59 Halted 0 ms 0 KB -