oj.uz

Submission #479743

# Submission time Handle Problem Language Result Execution time Memory
479743 2021-10-13T03:24:22 Z lightseba Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
15 / 100
 423 ms 757520 KB 
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#include <bits/stdc++.h>
using namespace std;
#define filename ""

#define pb push_back
#define mp make_pair
#define eb emplace_back
#define xx first
#define yy second
#define sz(x) ((int) size(x))
#define all(x) begin(x), end(x)
#define rep(i, a, b) for(int i = a; i < b; i++)
#define per(i, a, b) for(int i = a; i >= b; i--)
using ll = long long;
using ld = long double;
using vi = vector<int>;
using vl = vector<ll>;
using pii = pair<int, int>;

const int oo = 1e9;
const int N = 400 + 1;
int dp[N][N][N][3];
vi pos[3];

int go(int i, int j, int k, int c) {
    bool place0 = i < sz(pos[0]);
    bool place1 = j < sz(pos[1]);
    bool place2 = k < sz(pos[2]);

    if (!place0 && !place1 && !place2)  
        return 0;

    if (dp[i][j][k][c] != -1)
        return dp[i][j][k][c];
    
    place0 &= c != 0;
    place1 &= c != 1;
    place2 &= c != 2;

    int p = i + j + k;
    int ans = oo;

    if (place0) ans = min(ans, abs(p - pos[0][i]) + go(i + 1, j, k, 0));
    if (place1) ans = min(ans, abs(p - pos[1][j]) + go(i, j + 1, k, 1));
    if (place2) ans = min(ans, abs(p - pos[2][k]) + go(i, j, k + 1, 2));

    return dp[i][j][k][c] = ans;
}

void solve() {   
    memset(dp, -1, sizeof(dp));
    
    int n;
    string s;
    cin >> n >> s;

    for (int i = 0; i < n; i++) {
        if (s[i] == 'R') pos[0].push_back(i);
        if (s[i] == 'G') pos[1].push_back(i);
        if (s[i] == 'Y') pos[2].push_back(i);
    }

    int ans = min(go(0, 0, 0, 0), go(0, 0, 0, 1));

    if (ans >= oo)
        ans = -2;

    cout << ans / 2 << "\n";
} 

int main() {
	cin.tie(0)->sync_with_stdio(0);
	cin.exceptions(cin.failbit);
	// freopen(filename ".in", "r", stdin); freopen(filename ".out", "w", stdout); 

	// int t; cin >> t; while (t--)
	solve();

	return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 423 ms 757364 KB Output is correct
2 Correct 354 ms 757296 KB Output is correct
3 Correct 355 ms 757336 KB Output is correct
4 Correct 316 ms 757328 KB Output is correct
5 Correct 354 ms 757292 KB Output is correct
6 Correct 324 ms 757412 KB Output is correct
7 Correct 320 ms 757316 KB Output is correct
8 Correct 365 ms 757472 KB Output is correct
9 Correct 326 ms 757288 KB Output is correct
10 Correct 315 ms 757356 KB Output is correct
11 Incorrect 348 ms 757356 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 423 ms 757364 KB Output is correct
2 Correct 354 ms 757296 KB Output is correct
3 Correct 355 ms 757336 KB Output is correct
4 Correct 316 ms 757328 KB Output is correct
5 Correct 354 ms 757292 KB Output is correct
6 Correct 324 ms 757412 KB Output is correct
7 Correct 320 ms 757316 KB Output is correct
8 Correct 365 ms 757472 KB Output is correct
9 Correct 326 ms 757288 KB Output is correct
10 Correct 315 ms 757356 KB Output is correct
11 Incorrect 348 ms 757356 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 341 ms 757320 KB Output is correct
2 Correct 358 ms 757384 KB Output is correct
3 Correct 317 ms 757320 KB Output is correct
4 Correct 318 ms 757384 KB Output is correct
5 Correct 329 ms 757432 KB Output is correct
6 Correct 329 ms 757336 KB Output is correct
7 Correct 325 ms 757520 KB Output is correct
8 Correct 324 ms 757340 KB Output is correct
9 Correct 324 ms 757368 KB Output is correct
10 Correct 334 ms 757476 KB Output is correct
11 Correct 320 ms 757380 KB Output is correct
12 Correct 337 ms 757412 KB Output is correct
13 Correct 314 ms 757316 KB Output is correct
14 Correct 339 ms 757316 KB Output is correct
15 Correct 322 ms 757384 KB Output is correct
16 Correct 341 ms 757452 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 423 ms 757364 KB Output is correct
2 Correct 354 ms 757296 KB Output is correct
3 Correct 355 ms 757336 KB Output is correct
4 Correct 316 ms 757328 KB Output is correct
5 Correct 354 ms 757292 KB Output is correct
6 Correct 324 ms 757412 KB Output is correct
7 Correct 320 ms 757316 KB Output is correct
8 Correct 365 ms 757472 KB Output is correct
9 Correct 326 ms 757288 KB Output is correct
10 Correct 315 ms 757356 KB Output is correct
11 Incorrect 348 ms 757356 KB Output isn't correct
12 Halted 0 ms 0 KB -