oj.uz

Submission #250720

# Submission time Handle Problem Language Result Execution time Memory
250720 2020-07-18T22:04:29 Z WhaleVomit Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
75 / 100
 500 ms 61192 KB 
#include <bits/stdc++.h>
using namespace std;

#define f first
#define s second
#define pb push_back
#define mp make_pair
#define all(v) v.begin(), v.end()
#define sz(v) (int)v.size()

#define MOO(i, a, b) for(int i=a; i<b; i++)
#define M00(i, a) for(int i=0; i<a; i++)
#define MOOd(i,a,b) for(int i = (b)-1; i >= a; i--)
#define M00d(i,a) for(int i = (a)-1; i>=0; i--)

#define FAST ios::sync_with_stdio(0); cin.tie(0);
#define finish(x) return cout << x << '\n', 0;
#define dbg(x) cerr << ">>> " << #x << " = " << x << "\n";
#define _ << " _ " <<

template<class T> bool ckmin(T& a, const T& b) {return b < a ? a = b, 1 : 0;}
template<class T> bool ckmax(T& a, const T& b) {return a < b ? a = b, 1 : 0;}

typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef pair<int,int> pi;
typedef pair<ld,ld> pd;
typedef complex<ld> cd;

const int MAX_N = 404;
int n;
int arr[MAX_N];
int pref[MAX_N][3];
vi idxOf[3];
map<pair<pi, vi>, int> dp;

int getcost(int c, vi cnt) { // cost to get the next c
    if(cnt[c] >= sz(idxOf[c])) return 1e8; // impossible
    int idx = idxOf[c][cnt[c]];
    int res = idx;
    M00(k, 3) res -= min(cnt[k], pref[idx][k]);
    return res;
}

int getdp(int idx, int c, vi cnt) {
    pair<pi, vi> tmp = mp(mp(idx, c), cnt);
    if(dp.count(tmp)) return dp[tmp];
    int cost = getcost(c, cnt);
    if(cost == 1e8) {
        dp[tmp] = 1e8;
        return dp[tmp];
    }
    if(idx == n-1) {
        dp[tmp] = cost;
        return dp[tmp];
    }
    cnt[c]++;
    int res = 1e8;
    M00(c2, 3) if(c2 != c) {
        ckmin(res, cost + getdp(idx+1, c2, cnt));
    }
    dp[tmp] = res;
    return dp[tmp];
}

int main() { FAST
    string s;
    cin >> n >> s;
    M00(i, n) {
        if(s[i] == 'R') arr[i] = 0;
        else if(s[i] == 'Y') arr[i] = 1;
        else arr[i] = 2;
    }
    M00(c, 3) {
        pref[0][c] = (arr[0] == c);
        MOO(i, 1, n) pref[i][c] = pref[i-1][c] + (arr[i] == c);
    }
    M00(i, n) idxOf[arr[i]].pb(i);
    int res = 1e8;
    vi v(3,0);
    M00(i, 3) ckmin(res, getdp(0, i, v));
    if(res == 1e8) {
        finish(-1);
    }
    finish(res);
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 16 ms 1920 KB Output is correct
19 Correct 16 ms 1792 KB Output is correct
20 Correct 14 ms 1792 KB Output is correct
21 Correct 16 ms 1920 KB Output is correct
22 Correct 11 ms 1408 KB Output is correct
23 Correct 16 ms 1920 KB Output is correct
24 Correct 9 ms 1280 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 9 ms 1280 KB Output is correct
28 Correct 17 ms 2048 KB Output is correct
29 Correct 17 ms 1920 KB Output is correct
30 Correct 15 ms 1844 KB Output is correct
31 Correct 14 ms 1792 KB Output is correct
32 Correct 25 ms 1912 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 3 ms 512 KB Output is correct
35 Correct 12 ms 1588 KB Output is correct
36 Correct 15 ms 1792 KB Output is correct
37 Correct 12 ms 1536 KB Output is correct
38 Correct 12 ms 1536 KB Output is correct
39 Correct 18 ms 1920 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 2 ms 640 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 2 ms 640 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 1 ms 640 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 640 KB Output is correct
16 Correct 1 ms 512 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 16 ms 1920 KB Output is correct
19 Correct 16 ms 1792 KB Output is correct
20 Correct 14 ms 1792 KB Output is correct
21 Correct 16 ms 1920 KB Output is correct
22 Correct 11 ms 1408 KB Output is correct
23 Correct 16 ms 1920 KB Output is correct
24 Correct 9 ms 1280 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 9 ms 1280 KB Output is correct
28 Correct 17 ms 2048 KB Output is correct
29 Correct 17 ms 1920 KB Output is correct
30 Correct 15 ms 1844 KB Output is correct
31 Correct 14 ms 1792 KB Output is correct
32 Correct 25 ms 1912 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 3 ms 512 KB Output is correct
35 Correct 12 ms 1588 KB Output is correct
36 Correct 15 ms 1792 KB Output is correct
37 Correct 12 ms 1536 KB Output is correct
38 Correct 12 ms 1536 KB Output is correct
39 Correct 18 ms 1920 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 1 ms 640 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 2 ms 640 KB Output is correct
46 Correct 1 ms 640 KB Output is correct
47 Correct 2 ms 640 KB Output is correct
48 Correct 1 ms 640 KB Output is correct
49 Correct 1 ms 512 KB Output is correct
50 Correct 1 ms 512 KB Output is correct
51 Correct 2 ms 512 KB Output is correct
52 Correct 1 ms 640 KB Output is correct
53 Correct 1 ms 512 KB Output is correct
54 Correct 1 ms 512 KB Output is correct
55 Correct 1 ms 512 KB Output is correct
56 Correct 1 ms 640 KB Output is correct
57 Correct 1 ms 512 KB Output is correct
58 Execution timed out 1096 ms 61192 KB Time limit exceeded
59 Halted 0 ms 0 KB -