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Submission #627099

# Submission time Handle Problem Language Result Execution time Memory
627099 2022-08-12T07:33:38 Z NothingXD Liteh and Newfiteh (INOI20_litehfiteh) C++14
100 / 100
 97 ms 114576 KB 
#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

void debug_out() { cerr << endl; }

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
	cerr << " " << H;
	debug_out(T...);
}

#define debug(...) cerr << "(" << #__VA_ARGS__ << "):", debug_out(__VA_ARGS__)
#define all(x) x.begin(), x.end()
#define MP(x, y) make_pair(x, y)
#define F first
#define S second

const int MAXN = 1e5 + 10;
const int LOG = 17;
const int INF = 1e9;
int n, a[MAXN], dp[LOG][LOG][MAXN], ans[MAXN];

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0);

	memset(dp, 63, sizeof dp);
	memset(ans, 63, sizeof ans);
	debug(2*ans[0]+1);
	cin >> n;
	for (int i = 1; i <= n; i++){
		cin >> a[i];
		if (a[i] > LOG) continue;
		dp[0][a[i]][i] = 0;
		if (a[i]) dp[0][a[i]-1][i] = 1;
	}
	for (int i = 1; i < LOG; i++){
		for (int j = 0; j < LOG - 1; j++){
			for (int k = 1; k + (1 << i) - 1 <= n; k++){
				dp[i][j][k] = min({dp[i][j][k], dp[i-1][j][k] + dp[i-1][j][k + (1 << (i-1))],
						dp[i-1][j+1][k] + dp[i-1][j+1][k + (1 << (i-1))] + 1});
				}
		}
	}
	ans[n+1] = 0;
	for (int i = n; i; i--){
		for (int j = 0; i + (1 << j) - 1 <= n; j++){
			ans[i] = min(ans[i], dp[j][0][i] + ans[i + (1 << j)]);
		}
	}
	cout << (ans[1] >= INF? -1: ans[1]) << '\n';
}

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 113808 KB Output is correct
2 Correct 44 ms 113728 KB Output is correct
3 Correct 44 ms 113768 KB Output is correct
4 Correct 43 ms 113744 KB Output is correct
5 Correct 42 ms 113740 KB Output is correct
6 Correct 45 ms 113772 KB Output is correct
7 Correct 43 ms 113704 KB Output is correct
8 Correct 43 ms 113768 KB Output is correct
9 Correct 44 ms 113740 KB Output is correct
10 Correct 44 ms 113800 KB Output is correct
11 Correct 43 ms 113800 KB Output is correct
12 Correct 46 ms 113740 KB Output is correct
13 Correct 50 ms 113804 KB Output is correct

Subtask #2
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 113808 KB Output is correct
2 Correct 44 ms 113728 KB Output is correct
3 Correct 44 ms 113768 KB Output is correct
4 Correct 43 ms 113744 KB Output is correct
5 Correct 42 ms 113740 KB Output is correct
6 Correct 45 ms 113772 KB Output is correct
7 Correct 43 ms 113704 KB Output is correct
8 Correct 43 ms 113768 KB Output is correct
9 Correct 44 ms 113740 KB Output is correct
10 Correct 44 ms 113800 KB Output is correct
11 Correct 43 ms 113800 KB Output is correct
12 Correct 46 ms 113740 KB Output is correct
13 Correct 50 ms 113804 KB Output is correct
14 Correct 43 ms 113788 KB Output is correct
15 Correct 43 ms 113716 KB Output is correct
16 Correct 43 ms 113788 KB Output is correct
17 Correct 43 ms 113760 KB Output is correct
18 Correct 42 ms 113796 KB Output is correct
19 Correct 45 ms 113720 KB Output is correct
20 Correct 53 ms 113848 KB Output is correct
21 Correct 48 ms 113996 KB Output is correct
22 Correct 97 ms 114088 KB Output is correct
23 Correct 90 ms 114576 KB Output is correct
24 Correct 90 ms 114404 KB Output is correct
25 Correct 43 ms 113720 KB Output is correct
26 Correct 43 ms 113736 KB Output is correct
27 Correct 44 ms 113760 KB Output is correct
28 Correct 43 ms 113800 KB Output is correct
29 Correct 49 ms 113820 KB Output is correct
30 Correct 48 ms 113860 KB Output is correct
31 Correct 49 ms 113848 KB Output is correct
32 Correct 48 ms 113808 KB Output is correct
33 Correct 92 ms 114356 KB Output is correct
34 Correct 91 ms 114512 KB Output is correct
35 Correct 89 ms 114492 KB Output is correct
36 Correct 90 ms 114380 KB Output is correct
37 Correct 89 ms 114476 KB Output is correct
38 Correct 90 ms 114508 KB Output is correct
39 Correct 90 ms 114356 KB Output is correct
40 Correct 90 ms 114472 KB Output is correct
41 Correct 91 ms 114348 KB Output is correct
42 Correct 90 ms 114452 KB Output is correct
43 Correct 95 ms 114304 KB Output is correct
44 Correct 93 ms 114416 KB Output is correct
45 Correct 89 ms 114320 KB Output is correct
46 Correct 91 ms 114308 KB Output is correct
47 Correct 72 ms 114224 KB Output is correct
48 Correct 85 ms 114284 KB Output is correct
49 Correct 82 ms 114252 KB Output is correct
50 Correct 92 ms 114428 KB Output is correct
51 Correct 47 ms 113892 KB Output is correct
52 Correct 87 ms 114408 KB Output is correct