oj.uz

Submission #512598

# Submission time Handle Problem Language Result Execution time Memory
512598 2022-01-16T13:32:44 Z Jarif_Rahman Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
60 / 100
 500 ms 1048580 KB 
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
const int inf = 1e9+5;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n; str ss; cin >> n >> ss;
    vector<int> s;
    for(int i = 0; i < n; i++){
        if(ss[i] == 'R') s.pb(0);
        if(ss[i] == 'G') s.pb(1);
        if(ss[i] == 'Y') s.pb(2);
    }

    vector<vector<int>> cnt(n, vector<int>(3, 0));
    vector<vector<int>> pos(3);
    vector<vector<vector<vector<int>>>> dp(n, vector<vector<vector<int>>>(n+1,
        vector<vector<int>>(n+1, vector<int>(3, inf))));

    for(int i = n-1; i >= 0; i--){
        pos[s[i]].pb(i);
        if(i != n-1) cnt[i][0] = cnt[i+1][0], cnt[i][1] = cnt[i+1][1], cnt[i][2] = cnt[i+1][2];
        cnt[i][s[i]]++;
    }

    for(int i = n-1; i >= 0; i--){
        int c[3];
        for(c[0] = 0; c[0] <= min(cnt[0][0], n-i); c[0]++) for(c[1] = 0; c[1] <= cnt[0][1] && c[1]+c[0] <= n-i; c[1]++){
            c[2] = n-i-c[0]-c[1];
            if(c[2] > cnt[0][2]) continue;
            for(int cl = 0; cl < 3; cl++){
                if(c[cl] == 0) continue;
                if(c[cl] > pos[cl].size()) continue;
                vector<int> o;
                for(int j = 0; j < 3; j++) if(j != cl) o.pb(j);
                for(int j = 0; j < 2; j++){
                    int cur = 0;
                    c[cl]--;
                    if(i != n-1) cur+=dp[i+1][c[0]][c[1]][o[j]];
                    c[cl]++;
                    if(i == n-1) cur+=abs(pos[cl][c[cl]-1]-i);
                    else cur+=abs(pos[cl][c[cl]-1]-max(0, c[o[0]]-cnt[pos[cl][c[cl]-1]][o[0]])
                        -max(0, c[o[1]]-cnt[pos[cl][c[cl]-1]][o[1]])-i);

                    dp[i][c[0]][c[1]][cl] = min(dp[i][c[0]][c[1]][cl], cur);
                }
            }
        }
    }
    int ans = inf;
    for(int i = 0; i <= n; i++) for(int j = 0; j <= n; j++) for(int c = 0; c < 3; c++)
        ans = min(ans, dp[0][i][j][c]);
    if(ans >= inf) ans = -1;
    cout << ans << "\n";
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:38:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |                 if(c[cl] > pos[cl].size()) continue;
      |                    ~~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 2 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 0 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 2 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 0 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 15 ms 12872 KB Output is correct
19 Correct 14 ms 12876 KB Output is correct
20 Correct 16 ms 12872 KB Output is correct
21 Correct 15 ms 12748 KB Output is correct
22 Correct 19 ms 12772 KB Output is correct
23 Correct 17 ms 12840 KB Output is correct
24 Correct 15 ms 12752 KB Output is correct
25 Correct 14 ms 12876 KB Output is correct
26 Correct 14 ms 12764 KB Output is correct
27 Correct 15 ms 12748 KB Output is correct
28 Correct 16 ms 12748 KB Output is correct
29 Correct 17 ms 12748 KB Output is correct
30 Correct 15 ms 12832 KB Output is correct
31 Correct 24 ms 12748 KB Output is correct
32 Correct 15 ms 12796 KB Output is correct
33 Correct 14 ms 12236 KB Output is correct
34 Correct 23 ms 12236 KB Output is correct
35 Correct 14 ms 11588 KB Output is correct
36 Correct 15 ms 12208 KB Output is correct
37 Correct 13 ms 11084 KB Output is correct
38 Correct 14 ms 12872 KB Output is correct
39 Correct 16 ms 12872 KB Output is correct
40 Correct 13 ms 12252 KB Output is correct
41 Correct 14 ms 12868 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Execution timed out 836 ms 1048580 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 2 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 0 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 15 ms 12872 KB Output is correct
19 Correct 14 ms 12876 KB Output is correct
20 Correct 16 ms 12872 KB Output is correct
21 Correct 15 ms 12748 KB Output is correct
22 Correct 19 ms 12772 KB Output is correct
23 Correct 17 ms 12840 KB Output is correct
24 Correct 15 ms 12752 KB Output is correct
25 Correct 14 ms 12876 KB Output is correct
26 Correct 14 ms 12764 KB Output is correct
27 Correct 15 ms 12748 KB Output is correct
28 Correct 16 ms 12748 KB Output is correct
29 Correct 17 ms 12748 KB Output is correct
30 Correct 15 ms 12832 KB Output is correct
31 Correct 24 ms 12748 KB Output is correct
32 Correct 15 ms 12796 KB Output is correct
33 Correct 14 ms 12236 KB Output is correct
34 Correct 23 ms 12236 KB Output is correct
35 Correct 14 ms 11588 KB Output is correct
36 Correct 15 ms 12208 KB Output is correct
37 Correct 13 ms 11084 KB Output is correct
38 Correct 14 ms 12872 KB Output is correct
39 Correct 16 ms 12872 KB Output is correct
40 Correct 13 ms 12252 KB Output is correct
41 Correct 14 ms 12868 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Execution timed out 836 ms 1048580 KB Time limit exceeded
44 Halted 0 ms 0 KB -