oj.uz

답안 #499621

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
499621 2021-12-29T05:25:44 Z Marceantasy Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 175 ms 145456 KB 
#include <bits/stdc++.h>
using namespace std; 

#define ll long long
#define ar array

const int mxN = 410, M = 1e9+7; 
int n, dp[4][210][210][210], sum[3][mxN], cnt[3];
string s;
vector<int> a[3];

int solvepos(char c, int pos){
    if(c == 'R'){
        return sum[0][pos+1];
    }
    if(c == 'G'){
        return sum[1][pos+1];
    }
    return sum[2][pos+1];
}

int cost(int flag, int R, int G, int Y){
    int pos;
    if(flag == 0){
        pos = a[flag][R-1];
    }
    if(flag == 1){
        pos = a[flag][G-1];
    }
    if(flag == 2){
        pos = a[flag][Y-1];
    }
    return max(solvepos('R', pos) - R, 0) + max(solvepos('G', pos) - G, 0) + max(solvepos('Y', pos) - Y, 0);
}

int solve(int last, int R, int G, int Y){
    if(R+G+Y == 0){
        return 0;
    }
    if(~dp[last][R][G][Y]) return dp[last][R][G][Y];
    int flag = 1e9;
    if(R && last != 0){
        flag = min(flag, solve(0, R-1, G, Y) + cost(0, R, G, Y));
    }
    if(G && last != 1){
        flag = min(flag, solve(1, R, G-1, Y) + cost(1, R, G, Y));
    }
    if(Y && last != 2){
        flag = min(flag, solve(2, R, G, Y-1) + cost(2, R, G, Y));
    }
    return dp[last][R][G][Y] = flag;
}

int main(){
#ifdef _DEBUG
//	freopen("input.txt", "r", stdin);
//	freopen("output.txt", "w", stdout);
#endif
    std::ios_base::sync_with_stdio(false); std::cin.tie(0); std::cout.tie(0);

    cin >> n >> s;
    for(int i = n-1; i>=0; --i){
        if(s[i] == 'R'){
            cnt[0]++;
            a[0].push_back(i);
            sum[0][i]++;
        }else if(s[i] == 'G'){
            cnt[1]++;
            a[1].push_back(i);
            sum[1][i]++;
        }else{
            cnt[2]++;
            a[2].push_back(i);
            sum[2][i]++;
        }
        for(int j = 0; j<3; ++j){
            sum[j][i] += sum[j][i+1];
        }
    }
    memset(dp, -1, sizeof(dp));
    if(max(cnt[0], max(cnt[1], cnt[2])) > 202){
        cout << "-1\n";
    }else{
        int ans = solve(3, cnt[0], cnt[1], cnt[2]);
        if(ans >= 1e8){
            cout << "-1\n";
        }else{
            cout << ans << "\n";
        }
    }
}

Compilation message

joi2019_ho_t3.cpp: In function 'int cost(int, int, int, int)':
joi2019_ho_t3.cpp:14:26: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   14 |         return sum[0][pos+1];
      |                       ~~~^~
joi2019_ho_t3.cpp:23:9: note: 'pos' was declared here
   23 |     int pos;
      |         ^~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 145220 KB Output is correct
2 Correct 55 ms 145280 KB Output is correct
3 Correct 55 ms 145192 KB Output is correct
4 Correct 54 ms 145220 KB Output is correct
5 Correct 58 ms 145204 KB Output is correct
6 Correct 55 ms 145212 KB Output is correct
7 Correct 56 ms 145188 KB Output is correct
8 Correct 59 ms 145204 KB Output is correct
9 Correct 55 ms 145248 KB Output is correct
10 Correct 57 ms 145192 KB Output is correct
11 Correct 57 ms 145228 KB Output is correct
12 Correct 57 ms 145216 KB Output is correct
13 Correct 55 ms 145208 KB Output is correct
14 Correct 54 ms 145220 KB Output is correct
15 Correct 55 ms 145180 KB Output is correct
16 Correct 55 ms 145228 KB Output is correct
17 Correct 57 ms 145200 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 145220 KB Output is correct
2 Correct 55 ms 145280 KB Output is correct
3 Correct 55 ms 145192 KB Output is correct
4 Correct 54 ms 145220 KB Output is correct
5 Correct 58 ms 145204 KB Output is correct
6 Correct 55 ms 145212 KB Output is correct
7 Correct 56 ms 145188 KB Output is correct
8 Correct 59 ms 145204 KB Output is correct
9 Correct 55 ms 145248 KB Output is correct
10 Correct 57 ms 145192 KB Output is correct
11 Correct 57 ms 145228 KB Output is correct
12 Correct 57 ms 145216 KB Output is correct
13 Correct 55 ms 145208 KB Output is correct
14 Correct 54 ms 145220 KB Output is correct
15 Correct 55 ms 145180 KB Output is correct
16 Correct 55 ms 145228 KB Output is correct
17 Correct 57 ms 145200 KB Output is correct
18 Correct 58 ms 145204 KB Output is correct
19 Correct 55 ms 145220 KB Output is correct
20 Correct 55 ms 145220 KB Output is correct
21 Correct 56 ms 145260 KB Output is correct
22 Correct 64 ms 145280 KB Output is correct
23 Correct 55 ms 145252 KB Output is correct
24 Correct 56 ms 145160 KB Output is correct
25 Correct 55 ms 145224 KB Output is correct
26 Correct 58 ms 145228 KB Output is correct
27 Correct 56 ms 145248 KB Output is correct
28 Correct 56 ms 145220 KB Output is correct
29 Correct 57 ms 145244 KB Output is correct
30 Correct 57 ms 145224 KB Output is correct
31 Correct 56 ms 145212 KB Output is correct
32 Correct 56 ms 145224 KB Output is correct
33 Correct 58 ms 145456 KB Output is correct
34 Correct 56 ms 145196 KB Output is correct
35 Correct 57 ms 145172 KB Output is correct
36 Correct 56 ms 145224 KB Output is correct
37 Correct 58 ms 145220 KB Output is correct
38 Correct 55 ms 145176 KB Output is correct
39 Correct 55 ms 145216 KB Output is correct
40 Correct 57 ms 145212 KB Output is correct
41 Correct 55 ms 145268 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 145208 KB Output is correct
2 Correct 57 ms 145276 KB Output is correct
3 Correct 54 ms 145264 KB Output is correct
4 Correct 54 ms 145192 KB Output is correct
5 Correct 55 ms 145336 KB Output is correct
6 Correct 56 ms 145252 KB Output is correct
7 Correct 55 ms 145308 KB Output is correct
8 Correct 55 ms 145268 KB Output is correct
9 Correct 55 ms 145204 KB Output is correct
10 Correct 53 ms 145192 KB Output is correct
11 Correct 55 ms 145292 KB Output is correct
12 Correct 55 ms 145216 KB Output is correct
13 Correct 55 ms 145224 KB Output is correct
14 Correct 57 ms 145292 KB Output is correct
15 Correct 56 ms 145392 KB Output is correct
16 Correct 55 ms 145220 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 145220 KB Output is correct
2 Correct 55 ms 145280 KB Output is correct
3 Correct 55 ms 145192 KB Output is correct
4 Correct 54 ms 145220 KB Output is correct
5 Correct 58 ms 145204 KB Output is correct
6 Correct 55 ms 145212 KB Output is correct
7 Correct 56 ms 145188 KB Output is correct
8 Correct 59 ms 145204 KB Output is correct
9 Correct 55 ms 145248 KB Output is correct
10 Correct 57 ms 145192 KB Output is correct
11 Correct 57 ms 145228 KB Output is correct
12 Correct 57 ms 145216 KB Output is correct
13 Correct 55 ms 145208 KB Output is correct
14 Correct 54 ms 145220 KB Output is correct
15 Correct 55 ms 145180 KB Output is correct
16 Correct 55 ms 145228 KB Output is correct
17 Correct 57 ms 145200 KB Output is correct
18 Correct 58 ms 145204 KB Output is correct
19 Correct 55 ms 145220 KB Output is correct
20 Correct 55 ms 145220 KB Output is correct
21 Correct 56 ms 145260 KB Output is correct
22 Correct 64 ms 145280 KB Output is correct
23 Correct 55 ms 145252 KB Output is correct
24 Correct 56 ms 145160 KB Output is correct
25 Correct 55 ms 145224 KB Output is correct
26 Correct 58 ms 145228 KB Output is correct
27 Correct 56 ms 145248 KB Output is correct
28 Correct 56 ms 145220 KB Output is correct
29 Correct 57 ms 145244 KB Output is correct
30 Correct 57 ms 145224 KB Output is correct
31 Correct 56 ms 145212 KB Output is correct
32 Correct 56 ms 145224 KB Output is correct
33 Correct 58 ms 145456 KB Output is correct
34 Correct 56 ms 145196 KB Output is correct
35 Correct 57 ms 145172 KB Output is correct
36 Correct 56 ms 145224 KB Output is correct
37 Correct 58 ms 145220 KB Output is correct
38 Correct 55 ms 145176 KB Output is correct
39 Correct 55 ms 145216 KB Output is correct
40 Correct 57 ms 145212 KB Output is correct
41 Correct 55 ms 145268 KB Output is correct
42 Correct 55 ms 145208 KB Output is correct
43 Correct 57 ms 145276 KB Output is correct
44 Correct 54 ms 145264 KB Output is correct
45 Correct 54 ms 145192 KB Output is correct
46 Correct 55 ms 145336 KB Output is correct
47 Correct 56 ms 145252 KB Output is correct
48 Correct 55 ms 145308 KB Output is correct
49 Correct 55 ms 145268 KB Output is correct
50 Correct 55 ms 145204 KB Output is correct
51 Correct 53 ms 145192 KB Output is correct
52 Correct 55 ms 145292 KB Output is correct
53 Correct 55 ms 145216 KB Output is correct
54 Correct 55 ms 145224 KB Output is correct
55 Correct 57 ms 145292 KB Output is correct
56 Correct 56 ms 145392 KB Output is correct
57 Correct 55 ms 145220 KB Output is correct
58 Correct 149 ms 145292 KB Output is correct
59 Correct 144 ms 145432 KB Output is correct
60 Correct 147 ms 145348 KB Output is correct
61 Correct 149 ms 145320 KB Output is correct
62 Correct 55 ms 145208 KB Output is correct
63 Correct 54 ms 145284 KB Output is correct
64 Correct 74 ms 145316 KB Output is correct
65 Correct 94 ms 145328 KB Output is correct
66 Correct 162 ms 145220 KB Output is correct
67 Correct 175 ms 145316 KB Output is correct
68 Correct 148 ms 145204 KB Output is correct
69 Correct 148 ms 145436 KB Output is correct
70 Correct 148 ms 145412 KB Output is correct
71 Correct 142 ms 145292 KB Output is correct
72 Correct 55 ms 145252 KB Output is correct
73 Correct 57 ms 145220 KB Output is correct