oj.uz

Submission #240963

# Submission time Handle Problem Language Result Execution time Memory
240963 2020-06-21T22:51:38 Z aggu_01000101 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
60 / 100
 500 ms 1048576 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define INF 100000000000000000
#define int long long
#define lchild(i) (i*2 + 1)
#define rchild(i) (i*2 + 2)
#define mid(l, u) ((l+u)/2)
#define x(p) p.first
#define y(p) p.second
#define MOD 998244353
#define ordered_set tree<pair<int, int>, null_type,less<pair<int, int>>, rb_tree_tag,tree_order_statistics_node_update>
using namespace std;
int n;
const int N = 405;
int dp[N][N][N][4];
int arr[N];
vector<int> g[3];
int cmp[N][3];
int f(int i, int aused, int bused, int prev){
    //cout<<i<<" "<<aused<<" "<<bused<<" "<<prev<<endl;
    if(i>=n) return 0;
    if(dp[i][aused][bused][prev] > -1) return dp[i][aused][bused][prev];
    int cnt[] = {aused, bused, i - (aused + bused)};
    int tr = INF;
    for(int j = 0;j<3;j++){
        if(j==prev || g[j].size() <= cnt[j]) continue;
        int currind = g[j][cnt[j]];
        for(int k = 0;k<3;k++){
            if(k==j) continue;
            currind += max((int)0, cnt[k] - cmp[g[j][cnt[j]]][k]);
            //cout<<"equivalent at index "<<g[j][cnt[j]]<<" for type "<<k<<" is "<<cmp[g[j][cnt[j]]][k]<<endl;
        }
        cnt[j]++;
        //cout<<"putting "<<j<<", cost is "<<(currind - (i+1))<<endl;
        tr = min(tr, (currind - (i+1)) + f(i+1, cnt[0], cnt[1], j));
        cnt[j]--;
    }
    if(prev!=4) return dp[i][aused][bused][prev] = tr;
    return tr;
}
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n;
    string s;
    cin>>s;
    for(int i = 1;i<=n;i++){
        if(s[i-1]=='R') arr[i] = 0;
        else if(s[i-1]=='G') arr[i] = 1;
        else arr[i] = 2;
        cmp[i][0] = g[0].size();
        cmp[i][1] = g[1].size();
        cmp[i][2] = g[2].size();
        g[arr[i]].push_back(i);
    }
    for(int i = 0;i<=n;i++) for(int j = 0;j<=n;j++) for(int k = 0;k<=n;k++) for(int x = 0;x<3;x++) dp[i][j][k][x] = -1;
    int ans = f(0, 0, 0, 4);
    if(ans>=INF) ans = -1;
    cout<<ans<<"\n";
}
//2^(2k - 1) - 2^(k-1)
/*
4 4
RGWR
GRRG
WGGW
WWWR

5 5
RGRGW
GRRGW
WGGWR
RWRGW
RGWGW

20
YYGYYYGGGGRGYYGRGRYG
 */

Compilation message

joi2019_ho_t3.cpp: In function 'long long int f(long long int, long long int, long long int, long long int)':
joi2019_ho_t3.cpp:27:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(j==prev || g[j].size() <= cnt[j]) continue;
                       ~~~~~~~~~~~~^~~~~~~~~
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:23:32: warning: array subscript is above array bounds [-Warray-bounds]
     if(dp[i][aused][bused][prev] > -1) return dp[i][aused][bused][prev];
        ~~~~~~~~~~~~~~~~~~~~~~~~^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 896 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 5 ms 1536 KB Output is correct
8 Correct 5 ms 1536 KB Output is correct
9 Correct 5 ms 1664 KB Output is correct
10 Correct 5 ms 1536 KB Output is correct
11 Correct 5 ms 1536 KB Output is correct
12 Correct 5 ms 1536 KB Output is correct
13 Correct 5 ms 1536 KB Output is correct
14 Correct 5 ms 1408 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 5 ms 1408 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 896 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 5 ms 1536 KB Output is correct
8 Correct 5 ms 1536 KB Output is correct
9 Correct 5 ms 1664 KB Output is correct
10 Correct 5 ms 1536 KB Output is correct
11 Correct 5 ms 1536 KB Output is correct
12 Correct 5 ms 1536 KB Output is correct
13 Correct 5 ms 1536 KB Output is correct
14 Correct 5 ms 1408 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 5 ms 1408 KB Output is correct
18 Correct 18 ms 22516 KB Output is correct
19 Correct 15 ms 22528 KB Output is correct
20 Correct 15 ms 22528 KB Output is correct
21 Correct 15 ms 22528 KB Output is correct
22 Correct 15 ms 22528 KB Output is correct
23 Correct 16 ms 22656 KB Output is correct
24 Correct 16 ms 22528 KB Output is correct
25 Correct 16 ms 22656 KB Output is correct
26 Correct 16 ms 22528 KB Output is correct
27 Correct 16 ms 22528 KB Output is correct
28 Correct 16 ms 22528 KB Output is correct
29 Correct 16 ms 22632 KB Output is correct
30 Correct 16 ms 22656 KB Output is correct
31 Correct 16 ms 22528 KB Output is correct
32 Correct 15 ms 22528 KB Output is correct
33 Correct 16 ms 21760 KB Output is correct
34 Correct 15 ms 21760 KB Output is correct
35 Correct 16 ms 20992 KB Output is correct
36 Correct 15 ms 21760 KB Output is correct
37 Correct 14 ms 20096 KB Output is correct
38 Correct 15 ms 22528 KB Output is correct
39 Correct 15 ms 22528 KB Output is correct
40 Correct 16 ms 21760 KB Output is correct
41 Correct 17 ms 22656 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Runtime error 633 ms 1048576 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 896 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 5 ms 1536 KB Output is correct
8 Correct 5 ms 1536 KB Output is correct
9 Correct 5 ms 1664 KB Output is correct
10 Correct 5 ms 1536 KB Output is correct
11 Correct 5 ms 1536 KB Output is correct
12 Correct 5 ms 1536 KB Output is correct
13 Correct 5 ms 1536 KB Output is correct
14 Correct 5 ms 1408 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 5 ms 1408 KB Output is correct
18 Correct 18 ms 22516 KB Output is correct
19 Correct 15 ms 22528 KB Output is correct
20 Correct 15 ms 22528 KB Output is correct
21 Correct 15 ms 22528 KB Output is correct
22 Correct 15 ms 22528 KB Output is correct
23 Correct 16 ms 22656 KB Output is correct
24 Correct 16 ms 22528 KB Output is correct
25 Correct 16 ms 22656 KB Output is correct
26 Correct 16 ms 22528 KB Output is correct
27 Correct 16 ms 22528 KB Output is correct
28 Correct 16 ms 22528 KB Output is correct
29 Correct 16 ms 22632 KB Output is correct
30 Correct 16 ms 22656 KB Output is correct
31 Correct 16 ms 22528 KB Output is correct
32 Correct 15 ms 22528 KB Output is correct
33 Correct 16 ms 21760 KB Output is correct
34 Correct 15 ms 21760 KB Output is correct
35 Correct 16 ms 20992 KB Output is correct
36 Correct 15 ms 21760 KB Output is correct
37 Correct 14 ms 20096 KB Output is correct
38 Correct 15 ms 22528 KB Output is correct
39 Correct 15 ms 22528 KB Output is correct
40 Correct 16 ms 21760 KB Output is correct
41 Correct 17 ms 22656 KB Output is correct
42 Correct 5 ms 384 KB Output is correct
43 Runtime error 633 ms 1048576 KB Execution killed with signal 9 (could be triggered by violating memory limits)
44 Halted 0 ms 0 KB -