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Submission #782741

# Submission time Handle Problem Language Result Execution time Memory
782741 2023-07-14T08:43:54 Z RushB Liteh and Newfiteh (INOI20_litehfiteh) C++17
100 / 100
 214 ms 241768 KB 
#include <bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for (int i = (a); i < (b); i++) 
#define int long long
const int64_t INF = 1 << 30;
const int N = 1e5 + 5;
const int LG = 17;
int dp[N][LG][LG], mn[N][LG], a[N], n, lg, DP[N];

signed main() {
        ios::sync_with_stdio(0), cin.tie(0);
        cin >> n;
        FOR(i, 0, n) cin >> a[i];
        
        for (int x = n - 1; x >= 0; x--) {
                mn[x][0] = a[x];
                for (int i = 1; (1 << i) + x <= n; i++)
                        mn[x][i] = min(mn[x][i - 1], mn[x + (1 << (i - 1))][i - 1]);
                FOR(j, 0, LG) {
                        if (a[x] <= j + 1) dp[x][0][j] = (a[x] == j + 1);
                        else dp[x][0][j] = INF;
                }
                for (int i = 1; (1 << i) + x <= n; i++) {
                        FOR(j, 0, LG) {
                                dp[x][i][j] = dp[x][i - 1][j] + dp[x + (1 << (i - 1))][i - 1][j];
                                if (mn[x][i] > j) 
                                        dp[x][i][j] = min(dp[x][i][j], dp[x][i - 1][j + 1] + dp[x + (1 << (i - 1))][i - 1][j + 1] + 1);
                        }
                }
        }
        fill(DP, DP + N, INF);
        DP[n] = 0;
        for (int x = n - 1; x >= 0; x--) {
                for (int i = 0; (1 << i) + x <= n; i++) {
                        DP[x] = min(DP[x], dp[x][i][0] + DP[x + (1 << i)]);
                }
        }
        cout << (DP[0] == INF ? -1 : DP[0]) << '\n';
}
//10:39:29

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2516 KB Output is correct
2 Correct 2 ms 2516 KB Output is correct
3 Correct 1 ms 2516 KB Output is correct
4 Correct 2 ms 2504 KB Output is correct
5 Correct 1 ms 2500 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 2 ms 2508 KB Output is correct
8 Correct 1 ms 2516 KB Output is correct
9 Correct 1 ms 2516 KB Output is correct
10 Correct 1 ms 2516 KB Output is correct
11 Correct 1 ms 2512 KB Output is correct
12 Correct 2 ms 2560 KB Output is correct
13 Correct 1 ms 2516 KB Output is correct

Subtask #2
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2516 KB Output is correct
2 Correct 2 ms 2516 KB Output is correct
3 Correct 1 ms 2516 KB Output is correct
4 Correct 2 ms 2504 KB Output is correct
5 Correct 1 ms 2500 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 2 ms 2508 KB Output is correct
8 Correct 1 ms 2516 KB Output is correct
9 Correct 1 ms 2516 KB Output is correct
10 Correct 1 ms 2516 KB Output is correct
11 Correct 1 ms 2512 KB Output is correct
12 Correct 2 ms 2560 KB Output is correct
13 Correct 1 ms 2516 KB Output is correct
14 Correct 1 ms 1108 KB Output is correct
15 Correct 1 ms 1108 KB Output is correct
16 Correct 1 ms 1236 KB Output is correct
17 Correct 1 ms 1348 KB Output is correct
18 Correct 2 ms 3408 KB Output is correct
19 Correct 2 ms 3412 KB Output is correct
20 Correct 16 ms 25172 KB Output is correct
21 Correct 16 ms 25172 KB Output is correct
22 Correct 207 ms 241656 KB Output is correct
23 Correct 184 ms 241768 KB Output is correct
24 Correct 178 ms 241576 KB Output is correct
25 Correct 1 ms 1108 KB Output is correct
26 Correct 1 ms 1236 KB Output is correct
27 Correct 1 ms 1348 KB Output is correct
28 Correct 2 ms 3412 KB Output is correct
29 Correct 16 ms 25076 KB Output is correct
30 Correct 20 ms 25172 KB Output is correct
31 Correct 16 ms 25172 KB Output is correct
32 Correct 16 ms 25172 KB Output is correct
33 Correct 214 ms 241484 KB Output is correct
34 Correct 192 ms 241756 KB Output is correct
35 Correct 204 ms 241592 KB Output is correct
36 Correct 181 ms 241596 KB Output is correct
37 Correct 182 ms 241616 KB Output is correct
38 Correct 179 ms 241508 KB Output is correct
39 Correct 175 ms 241512 KB Output is correct
40 Correct 183 ms 241648 KB Output is correct
41 Correct 182 ms 241560 KB Output is correct
42 Correct 199 ms 241668 KB Output is correct
43 Correct 174 ms 241644 KB Output is correct
44 Correct 188 ms 241684 KB Output is correct
45 Correct 176 ms 241584 KB Output is correct
46 Correct 196 ms 241516 KB Output is correct
47 Correct 111 ms 161328 KB Output is correct
48 Correct 131 ms 188108 KB Output is correct
49 Correct 156 ms 214796 KB Output is correct
50 Correct 186 ms 241604 KB Output is correct
51 Correct 16 ms 25176 KB Output is correct
52 Correct 180 ms 241680 KB Output is correct