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Submission #1004881

# Submission time Handle Problem Language Result Execution time Memory
1004881 2024-06-21T21:22:50 Z vjudge1 Liteh and Newfiteh (INOI20_litehfiteh) C++17
100 / 100
 178 ms 315476 KB 
#include <bits/stdc++.h>

#define int long long
// #define ll long long
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
using namespace std;
const int oo = 1e9 + 9;
const int MAX = 1e5 + 5, LOGMAX = 20, B = 800, MOD = 1e9 + 7;

int n;
int arr[MAX];
int dp[MAX][LOGMAX][LOGMAX];
int dp2[MAX];

void solve(){
    cin >> n;
    for(int i = 1; i <= n; i++) cin >> arr[i];
    for(int i = 0; i < MAX; i++){
        for(int j = 0; j < LOGMAX; j++){
            for(int k = 0; k < LOGMAX; k++){
                dp[i][j][k] = oo;
            }
        }
    }
    for(int i = 1; i <= n; i++){
        dp[i][0][arr[i]] = 0;
        dp[i][0][arr[i] - 1] = 1;
    }
    for(int i = n; i >= 1; i--){
        for(int j = 1; i + (1 << j) - 1 <= n; j++){
            for(int k = min(LOGMAX - 1, arr[i]); k >= 0; k--){
                dp[i][j][k] = min({dp[i][j - 1][k] + dp[i + (1 << (j - 1))][j - 1][k],
                                  dp[i][j - 1][k + 1] + dp[i + (1 << (j - 1))][j - 1][k + 1] + 1});
                // cout << i << ' ' << j << ' ' << k << ": " << dp[i][j][k] << '\n';
            }
        }
    }
    for(int i = 1; i <= n; i++){
        dp2[i] = oo;
        for(int j = 0; i - (1 << j) >= 0; j++){
            dp2[i] = min(dp2[i - (1 << j)] + dp[i - (1 << j) + 1][j][0], dp2[i]);
        }
    }
    if(dp2[n] >= oo) dp2[n] = -1;
    cout << dp2[n] << '\n';
}   

signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    while(t--) solve();
}

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 314196 KB Output is correct
2 Correct 48 ms 314196 KB Output is correct
3 Correct 48 ms 314348 KB Output is correct
4 Correct 51 ms 314164 KB Output is correct
5 Correct 51 ms 314216 KB Output is correct
6 Correct 47 ms 314196 KB Output is correct
7 Correct 58 ms 314452 KB Output is correct
8 Correct 53 ms 314196 KB Output is correct
9 Correct 49 ms 314192 KB Output is correct
10 Correct 47 ms 314192 KB Output is correct
11 Correct 53 ms 314292 KB Output is correct
12 Correct 65 ms 314196 KB Output is correct
13 Correct 53 ms 314288 KB Output is correct

Subtask #2
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 314196 KB Output is correct
2 Correct 48 ms 314196 KB Output is correct
3 Correct 48 ms 314348 KB Output is correct
4 Correct 51 ms 314164 KB Output is correct
5 Correct 51 ms 314216 KB Output is correct
6 Correct 47 ms 314196 KB Output is correct
7 Correct 58 ms 314452 KB Output is correct
8 Correct 53 ms 314196 KB Output is correct
9 Correct 49 ms 314192 KB Output is correct
10 Correct 47 ms 314192 KB Output is correct
11 Correct 53 ms 314292 KB Output is correct
12 Correct 65 ms 314196 KB Output is correct
13 Correct 53 ms 314288 KB Output is correct
14 Correct 50 ms 314192 KB Output is correct
15 Correct 52 ms 314316 KB Output is correct
16 Correct 51 ms 314176 KB Output is correct
17 Correct 55 ms 314192 KB Output is correct
18 Correct 51 ms 314196 KB Output is correct
19 Correct 53 ms 314192 KB Output is correct
20 Correct 58 ms 314452 KB Output is correct
21 Correct 64 ms 314324 KB Output is correct
22 Correct 143 ms 315360 KB Output is correct
23 Correct 178 ms 315284 KB Output is correct
24 Correct 136 ms 315212 KB Output is correct
25 Correct 48 ms 314192 KB Output is correct
26 Correct 52 ms 314192 KB Output is correct
27 Correct 62 ms 314196 KB Output is correct
28 Correct 52 ms 314344 KB Output is correct
29 Correct 57 ms 314448 KB Output is correct
30 Correct 57 ms 314452 KB Output is correct
31 Correct 57 ms 314452 KB Output is correct
32 Correct 57 ms 314472 KB Output is correct
33 Correct 120 ms 315308 KB Output is correct
34 Correct 157 ms 315064 KB Output is correct
35 Correct 141 ms 315220 KB Output is correct
36 Correct 128 ms 315216 KB Output is correct
37 Correct 162 ms 315404 KB Output is correct
38 Correct 132 ms 315220 KB Output is correct
39 Correct 120 ms 315476 KB Output is correct
40 Correct 138 ms 315224 KB Output is correct
41 Correct 126 ms 315220 KB Output is correct
42 Correct 159 ms 315192 KB Output is correct
43 Correct 135 ms 315436 KB Output is correct
44 Correct 131 ms 315216 KB Output is correct
45 Correct 133 ms 315216 KB Output is correct
46 Correct 132 ms 315240 KB Output is correct
47 Correct 106 ms 314964 KB Output is correct
48 Correct 98 ms 314964 KB Output is correct
49 Correct 123 ms 315220 KB Output is correct
50 Correct 130 ms 315192 KB Output is correct
51 Correct 56 ms 314384 KB Output is correct
52 Correct 126 ms 315244 KB Output is correct