oj.uz

Submission #256481

# Submission time Handle Problem Language Result Execution time Memory
256481 2020-08-02T18:15:31 Z jainbot27 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 303 ms 243988 KB 
//Author: jainbot27
#pragma GCC optimize ("O3")
#pragma GCC target("sse4")
#include <bits/stdc++.h>
using namespace std;
 
 
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define ts to_string
#define ub upper_bound
#define lb lower_bound
// #define ar array
#define FOR(x, y, z) for(int x = y; x < z; x++)
#define ROF(x, y, z) for(int x = y; x > z; x--)
#define all(x) x.begin(), x.end()
 
 
const char nl = '\n';
using ll = long long;
using vi = vector<int>;
using vl = vector<ll>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using str = string;
using vpii = vector<pii>;
using vpll = vector<pll>;
 
 
str ts(char c) { return str(1,c); }
str ts(bool b) { return b ? "true" : "false"; }
str ts(const char* s) { return (str)s; }
str ts(str s) { return s; }
template<class A> str ts(complex<A> c) { 
	stringstream ss; ss << c; return ss.str(); }
str ts(vector<bool> v) { 
	str res = "{"; for(int i = 0;i < (int)v.size(); i++) res += char('0'+v[i]);
	res += "}"; return res; }
template<size_t SZ> str ts(bitset<SZ> b) {
	str res = ""; for(int i = 0; i < b.size(); i++) res += char('0'+b[i]);
	return res; }
template<class A, class B> str ts(pair<A,B> p);
template<class T> str ts(T v) { 
	bool fst = 1; str res = "{";
	for (const auto& x: v) {
		if (!fst) res += ", ";
		fst = 0; res += ts(x);
	}
	res += "}"; return res;
}
template<class A, class B> str ts(pair<A,B> p) {
	return "("+ts(p.f)+", "+ts(p.s)+")"; }
void DBG() { cerr << "]" << endl; }
template<class H, class... T> void DBG(H h, T... t) {
	cerr << ts(h); if (sizeof...(t)) cerr << ", ";
	DBG(t...); }
 
 
#ifdef D 
#define dbg(...) cerr << "LINE(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define dbg(...) 0
#endif
 
const int mxN = 401;
int n, dp[mxN][mxN][mxN][3], vis[mxN][mxN][mxN][3], p[3][mxN];
vi pos[3];
string c;
 
signed main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> n >> c;
	for(int i = 0; i < n; i++){
		if(c[i] == 'R'){
			p[0][i]++;
			pos[0].pb(i);
		}
		else if(c[i] == 'G'){
			p[1][i]++;
			pos[1].pb(i);
		}
		else{
			p[2][i]++;
			pos[2].pb(i);
		}
		if(i > 0){
			for(int j = 0; j < 3; j++){
				p[j][i] += p[j][i-1];
			}
		}
	} 
	dp[0][0][0][0] = 0;
	dp[0][0][0][1] = 0;
	dp[0][0][0][2] = 0;
	vis[0][0][0][0] = 1;
	vis[0][0][0][1] = 1;
	vis[0][0][0][2] = 1;
	for(int i =0; i < n; i++){
		for(int j = 0; j <= i; j++){
			for(int k = 0; k <= i; k++){
				for(int l = 0; l < 3; l++){
					if(!vis[i][j][k][l])
						continue;
					int ar = j, ag = k, ay = i - j - k;
					if(ar < (int)pos[0].size() && l != 0){
						int pr = pos[0][ar];
						if(ag > 0 && pos[1][ag-1] > pr){
							pr += p[1][pos[1][ag-1]] - p[1][pr];
						}
						if(ay > 0 && pos[2][ay-1] > pr){
							pr += p[2][pos[2][ay-1]] - p[2][pr];
						}
						if(!vis[i+1][j+1][k][0]|| dp[i+1][j+1][k][0] > dp[i][j][k][l] + max(pr - i, 0)){
							dp[i+1][j+1][k][0] = dp[i][j][k][l] + max(pr - i, 0);
							vis[i+1][j+1][k][0] = 1;
						}
					}
					if(ag < (int)pos[1].size() && l != 1){
						int pg = pos[1][ag];
						if(ar > 0 && pos[0][ar-1] > pg){
							pg += p[0][pos[0][ar-1]] - p[0][pg];
						}
						if(ay > 0 && pos[2][ay-1] > pg){
							pg += p[2][pos[2][ay-1]] - p[2][pg];
						}
						if(!vis[i+1][j][k+1][1]|| dp[i+1][j][k+1][1] > dp[i][j][k][l] + max(pg - i, 0)){
							dp[i+1][j][k+1][1] = dp[i][j][k][l] + max(pg - i, 0);
							vis[i+1][j][k+1][1] = 1; 
						}
					}
					if(ay < (int)pos[2].size() && l != 2){
						int py = pos[2][ay];
						if(ar > 0 && pos[0][ar-1] > py){
							py += p[0][pos[0][ar-1]] - p[0][py];
						}
						if(ag > 0 && pos[1][ag-1] > py){
							py += p[1][pos[1][ag-1]] - p[1][py];
						}
						if(!vis[i+1][j][k][2]|| dp[i+1][j][k][2] > dp[i][j][k][l] + max(py - i, 0)){
							dp[i+1][j][k][2] = dp[i][j][k][l] + max(py - i, 0);
							vis[i+1][j][k][2] = 1;
						}
					}
				}
			}
		}
	}
	int ans = 2e9;
	for(int i=0 ; i < 3; i++){
		if(vis[n][(int)pos[0].size()][(int)pos[1].size()][i]){
			ans = min(dp[n][(int)pos[0].size()][(int)pos[1].size()][i], ans);
		}
	}
 
	cout << (ans==(int)2e9?-1:ans) << nl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 896 KB Output is correct
6 Correct 1 ms 896 KB Output is correct
7 Correct 1 ms 896 KB Output is correct
8 Correct 1 ms 896 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 1 ms 640 KB Output is correct
11 Correct 1 ms 896 KB Output is correct
12 Correct 1 ms 896 KB Output is correct
13 Correct 1 ms 768 KB Output is correct
14 Correct 1 ms 768 KB Output is correct
15 Correct 1 ms 896 KB Output is correct
16 Correct 1 ms 640 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 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 896 KB Output is correct
6 Correct 1 ms 896 KB Output is correct
7 Correct 1 ms 896 KB Output is correct
8 Correct 1 ms 896 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 1 ms 640 KB Output is correct
11 Correct 1 ms 896 KB Output is correct
12 Correct 1 ms 896 KB Output is correct
13 Correct 1 ms 768 KB Output is correct
14 Correct 1 ms 768 KB Output is correct
15 Correct 1 ms 896 KB Output is correct
16 Correct 1 ms 640 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 5 ms 6144 KB Output is correct
19 Correct 5 ms 6144 KB Output is correct
20 Correct 5 ms 6016 KB Output is correct
21 Correct 5 ms 6272 KB Output is correct
22 Correct 5 ms 5376 KB Output is correct
23 Correct 5 ms 6144 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 3 ms 1664 KB Output is correct
26 Correct 3 ms 1920 KB Output is correct
27 Correct 4 ms 5248 KB Output is correct
28 Correct 5 ms 6272 KB Output is correct
29 Correct 6 ms 6272 KB Output is correct
30 Correct 5 ms 6016 KB Output is correct
31 Correct 5 ms 5888 KB Output is correct
32 Correct 5 ms 6144 KB Output is correct
33 Correct 3 ms 2176 KB Output is correct
34 Correct 4 ms 2816 KB Output is correct
35 Correct 5 ms 5504 KB Output is correct
36 Correct 5 ms 5888 KB Output is correct
37 Correct 5 ms 5248 KB Output is correct
38 Correct 5 ms 5504 KB Output is correct
39 Correct 5 ms 6272 KB Output is correct
40 Correct 2 ms 1024 KB Output is correct
41 Correct 3 ms 1920 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 146 ms 8184 KB Output is correct
3 Correct 143 ms 8184 KB Output is correct
4 Correct 157 ms 8056 KB Output is correct
5 Correct 143 ms 8056 KB Output is correct
6 Correct 147 ms 8056 KB Output is correct
7 Correct 143 ms 8184 KB Output is correct
8 Correct 139 ms 8060 KB Output is correct
9 Correct 135 ms 8016 KB Output is correct
10 Correct 134 ms 8056 KB Output is correct
11 Correct 140 ms 8056 KB Output is correct
12 Correct 27 ms 4352 KB Output is correct
13 Correct 56 ms 5628 KB Output is correct
14 Correct 84 ms 6776 KB Output is correct
15 Correct 150 ms 8160 KB Output is correct
16 Correct 138 ms 8052 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 640 KB Output is correct
5 Correct 1 ms 896 KB Output is correct
6 Correct 1 ms 896 KB Output is correct
7 Correct 1 ms 896 KB Output is correct
8 Correct 1 ms 896 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 1 ms 640 KB Output is correct
11 Correct 1 ms 896 KB Output is correct
12 Correct 1 ms 896 KB Output is correct
13 Correct 1 ms 768 KB Output is correct
14 Correct 1 ms 768 KB Output is correct
15 Correct 1 ms 896 KB Output is correct
16 Correct 1 ms 640 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 5 ms 6144 KB Output is correct
19 Correct 5 ms 6144 KB Output is correct
20 Correct 5 ms 6016 KB Output is correct
21 Correct 5 ms 6272 KB Output is correct
22 Correct 5 ms 5376 KB Output is correct
23 Correct 5 ms 6144 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 3 ms 1664 KB Output is correct
26 Correct 3 ms 1920 KB Output is correct
27 Correct 4 ms 5248 KB Output is correct
28 Correct 5 ms 6272 KB Output is correct
29 Correct 6 ms 6272 KB Output is correct
30 Correct 5 ms 6016 KB Output is correct
31 Correct 5 ms 5888 KB Output is correct
32 Correct 5 ms 6144 KB Output is correct
33 Correct 3 ms 2176 KB Output is correct
34 Correct 4 ms 2816 KB Output is correct
35 Correct 5 ms 5504 KB Output is correct
36 Correct 5 ms 5888 KB Output is correct
37 Correct 5 ms 5248 KB Output is correct
38 Correct 5 ms 5504 KB Output is correct
39 Correct 5 ms 6272 KB Output is correct
40 Correct 2 ms 1024 KB Output is correct
41 Correct 3 ms 1920 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 146 ms 8184 KB Output is correct
44 Correct 143 ms 8184 KB Output is correct
45 Correct 157 ms 8056 KB Output is correct
46 Correct 143 ms 8056 KB Output is correct
47 Correct 147 ms 8056 KB Output is correct
48 Correct 143 ms 8184 KB Output is correct
49 Correct 139 ms 8060 KB Output is correct
50 Correct 135 ms 8016 KB Output is correct
51 Correct 134 ms 8056 KB Output is correct
52 Correct 140 ms 8056 KB Output is correct
53 Correct 27 ms 4352 KB Output is correct
54 Correct 56 ms 5628 KB Output is correct
55 Correct 84 ms 6776 KB Output is correct
56 Correct 150 ms 8160 KB Output is correct
57 Correct 138 ms 8052 KB Output is correct
58 Correct 300 ms 240044 KB Output is correct
59 Correct 303 ms 240632 KB Output is correct
60 Correct 280 ms 240436 KB Output is correct
61 Correct 279 ms 242680 KB Output is correct
62 Correct 157 ms 19580 KB Output is correct
63 Correct 148 ms 33276 KB Output is correct
64 Correct 189 ms 107256 KB Output is correct
65 Correct 241 ms 159484 KB Output is correct
66 Correct 273 ms 240120 KB Output is correct
67 Correct 269 ms 236280 KB Output is correct
68 Correct 277 ms 242552 KB Output is correct
69 Correct 296 ms 243988 KB Output is correct
70 Correct 289 ms 242680 KB Output is correct
71 Correct 275 ms 236536 KB Output is correct
72 Correct 159 ms 36600 KB Output is correct
73 Correct 148 ms 11256 KB Output is correct