oj.uz

Submission #256463

# Submission time Handle Problem Language Result Execution time Memory
256463 2020-08-02T17:49:38 Z jainbot27 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
75 / 100
 500 ms 757628 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], p[3][mxN];
vi pos[3];
string c;

signed main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> n >> c;
	memset(dp, -1, sizeof(dp));
	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;
	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(dp[i][j][k][l] == -1)
						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(dp[i+1][j+1][k][0] == -1 || 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);
						}
					}
					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(dp[i+1][j][k+1][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);
						}
					}
					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(dp[i+1][j][k][2] == -1 || 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);
						}
					}
				}
			}
		}
	}
	int ans = 2e9;
	for(int i=0 ; i < 3; i++){
		if(dp[n][(int)pos[0].size()][(int)pos[1].size()][i] != -1){
			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 424 ms 757496 KB Output is correct
2 Correct 409 ms 757496 KB Output is correct
3 Correct 423 ms 757496 KB Output is correct
4 Correct 388 ms 757496 KB Output is correct
5 Correct 409 ms 757500 KB Output is correct
6 Correct 377 ms 757496 KB Output is correct
7 Correct 375 ms 757452 KB Output is correct
8 Correct 391 ms 757496 KB Output is correct
9 Correct 378 ms 757500 KB Output is correct
10 Correct 378 ms 757496 KB Output is correct
11 Correct 387 ms 757496 KB Output is correct
12 Correct 391 ms 757624 KB Output is correct
13 Correct 411 ms 757512 KB Output is correct
14 Correct 383 ms 757496 KB Output is correct
15 Correct 383 ms 757496 KB Output is correct
16 Correct 381 ms 757496 KB Output is correct
17 Correct 374 ms 757496 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 424 ms 757496 KB Output is correct
2 Correct 409 ms 757496 KB Output is correct
3 Correct 423 ms 757496 KB Output is correct
4 Correct 388 ms 757496 KB Output is correct
5 Correct 409 ms 757500 KB Output is correct
6 Correct 377 ms 757496 KB Output is correct
7 Correct 375 ms 757452 KB Output is correct
8 Correct 391 ms 757496 KB Output is correct
9 Correct 378 ms 757500 KB Output is correct
10 Correct 378 ms 757496 KB Output is correct
11 Correct 387 ms 757496 KB Output is correct
12 Correct 391 ms 757624 KB Output is correct
13 Correct 411 ms 757512 KB Output is correct
14 Correct 383 ms 757496 KB Output is correct
15 Correct 383 ms 757496 KB Output is correct
16 Correct 381 ms 757496 KB Output is correct
17 Correct 374 ms 757496 KB Output is correct
18 Correct 403 ms 757496 KB Output is correct
19 Correct 385 ms 757496 KB Output is correct
20 Correct 380 ms 757496 KB Output is correct
21 Correct 416 ms 757496 KB Output is correct
22 Correct 396 ms 757500 KB Output is correct
23 Correct 378 ms 757496 KB Output is correct
24 Correct 372 ms 757496 KB Output is correct
25 Correct 380 ms 757524 KB Output is correct
26 Correct 442 ms 757520 KB Output is correct
27 Correct 408 ms 757628 KB Output is correct
28 Correct 417 ms 757524 KB Output is correct
29 Correct 376 ms 757496 KB Output is correct
30 Correct 375 ms 757496 KB Output is correct
31 Correct 380 ms 757528 KB Output is correct
32 Correct 379 ms 757496 KB Output is correct
33 Correct 376 ms 757496 KB Output is correct
34 Correct 375 ms 757496 KB Output is correct
35 Correct 376 ms 757596 KB Output is correct
36 Correct 375 ms 757496 KB Output is correct
37 Correct 381 ms 757496 KB Output is correct
38 Correct 375 ms 757496 KB Output is correct
39 Correct 388 ms 757460 KB Output is correct
40 Correct 417 ms 757496 KB Output is correct
41 Correct 377 ms 757380 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 452 ms 757496 KB Output is correct
2 Correct 479 ms 757496 KB Output is correct
3 Correct 490 ms 757496 KB Output is correct
4 Correct 426 ms 757496 KB Output is correct
5 Correct 454 ms 757384 KB Output is correct
6 Correct 490 ms 757496 KB Output is correct
7 Correct 435 ms 757568 KB Output is correct
8 Correct 497 ms 757496 KB Output is correct
9 Correct 493 ms 757496 KB Output is correct
10 Correct 474 ms 757624 KB Output is correct
11 Correct 488 ms 757388 KB Output is correct
12 Correct 387 ms 757492 KB Output is correct
13 Correct 450 ms 757496 KB Output is correct
14 Correct 446 ms 757504 KB Output is correct
15 Correct 441 ms 757496 KB Output is correct
16 Correct 433 ms 757496 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 424 ms 757496 KB Output is correct
2 Correct 409 ms 757496 KB Output is correct
3 Correct 423 ms 757496 KB Output is correct
4 Correct 388 ms 757496 KB Output is correct
5 Correct 409 ms 757500 KB Output is correct
6 Correct 377 ms 757496 KB Output is correct
7 Correct 375 ms 757452 KB Output is correct
8 Correct 391 ms 757496 KB Output is correct
9 Correct 378 ms 757500 KB Output is correct
10 Correct 378 ms 757496 KB Output is correct
11 Correct 387 ms 757496 KB Output is correct
12 Correct 391 ms 757624 KB Output is correct
13 Correct 411 ms 757512 KB Output is correct
14 Correct 383 ms 757496 KB Output is correct
15 Correct 383 ms 757496 KB Output is correct
16 Correct 381 ms 757496 KB Output is correct
17 Correct 374 ms 757496 KB Output is correct
18 Correct 403 ms 757496 KB Output is correct
19 Correct 385 ms 757496 KB Output is correct
20 Correct 380 ms 757496 KB Output is correct
21 Correct 416 ms 757496 KB Output is correct
22 Correct 396 ms 757500 KB Output is correct
23 Correct 378 ms 757496 KB Output is correct
24 Correct 372 ms 757496 KB Output is correct
25 Correct 380 ms 757524 KB Output is correct
26 Correct 442 ms 757520 KB Output is correct
27 Correct 408 ms 757628 KB Output is correct
28 Correct 417 ms 757524 KB Output is correct
29 Correct 376 ms 757496 KB Output is correct
30 Correct 375 ms 757496 KB Output is correct
31 Correct 380 ms 757528 KB Output is correct
32 Correct 379 ms 757496 KB Output is correct
33 Correct 376 ms 757496 KB Output is correct
34 Correct 375 ms 757496 KB Output is correct
35 Correct 376 ms 757596 KB Output is correct
36 Correct 375 ms 757496 KB Output is correct
37 Correct 381 ms 757496 KB Output is correct
38 Correct 375 ms 757496 KB Output is correct
39 Correct 388 ms 757460 KB Output is correct
40 Correct 417 ms 757496 KB Output is correct
41 Correct 377 ms 757380 KB Output is correct
42 Correct 452 ms 757496 KB Output is correct
43 Correct 479 ms 757496 KB Output is correct
44 Correct 490 ms 757496 KB Output is correct
45 Correct 426 ms 757496 KB Output is correct
46 Correct 454 ms 757384 KB Output is correct
47 Correct 490 ms 757496 KB Output is correct
48 Correct 435 ms 757568 KB Output is correct
49 Correct 497 ms 757496 KB Output is correct
50 Correct 493 ms 757496 KB Output is correct
51 Correct 474 ms 757624 KB Output is correct
52 Correct 488 ms 757388 KB Output is correct
53 Correct 387 ms 757492 KB Output is correct
54 Correct 450 ms 757496 KB Output is correct
55 Correct 446 ms 757504 KB Output is correct
56 Correct 441 ms 757496 KB Output is correct
57 Correct 433 ms 757496 KB Output is correct
58 Execution timed out 526 ms 757496 KB Time limit exceeded
59 Halted 0 ms 0 KB -