oj.uz

Submission #701425

# Submission time Handle Problem Language Result Execution time Memory
701425 2023-02-21T08:29:12 Z tamthegod Lightning Conductor (POI11_pio) C++17
81 / 100
 1000 ms 46384 KB 
// Make the best become better
// No room for laziness
#include<bits/stdc++.h>

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define pb push_back
#define fi first
#define se second
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxN = 5e5 + 5;
const int mod = 1e9 + 7;
const ll oo = 1e18;
int n;
int a[maxN];
int f[21][maxN];
int lg[maxN];
void SparseTable()
{
    for(int i=1; i<=n; i++)
        f[0][i] = a[i];
    for(int k=1; k<=lg[n]; k++)
        for(int i=1; i<=n; i++)
        {
            int j = i + (1 << (k - 1));
            if(j > n) f[k][i] = f[k - 1][i];
            else f[k][i] = max(f[k - 1][i], f[k - 1][j]);
        }
}
inline int get(int l, int r)
{
    int k = lg[r - l + 1];
    return max(f[k][l], f[k][r - (1 << k) + 1]);
}
void ReadInput()
{
    cin >> n;
    for(int i=1; i<=n; i++)
        cin >> a[i];
    for(int i=2; i<maxN; i++)
        lg[i] = lg[i / 2] + 1;
}
void Solve()
{
    SparseTable();
    for(int i=1; i<=n; i++)
    {
        int res = 0;
        int len = (int)sqrt(i - 2) + 1;
        while(len >= 1)
        {
            int r = i - (len - 1) * (len - 1) - 1;
            int l = i - len * len;
            l = max(1, l);
            if(a[i] + res - len >= get(l, i - 1)) break;
            res = max(res, get(l, r) + len - a[i]);
            len--;
        }
        len = (int)sqrt(n - i - 1) + 1;
        while(len >= 1)
        {
            int l = i + (len - 1) * (len - 1) + 1;
            int r = i + len * len;
            r = min(r, n);
            if(a[i] + res - len >= get(i + 1, r)) break;
            res = max(res, get(l, r) + len - a[i]);
            len--;
        }
        cout << res << '\n';
    }
}
int32_t main()
{
    //freopen("sol.inp", "r", stdin);
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    ReadInput();
    Solve();
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2260 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2260 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2388 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 4564 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 6184 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 7020 KB Output is correct
2 Correct 13 ms 6996 KB Output is correct
3 Correct 137 ms 7132 KB Output is correct

Subtask #7
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 9716 KB Output is correct
2 Correct 27 ms 9684 KB Output is correct
3 Correct 156 ms 10188 KB Output is correct

Subtask #8
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 20448 KB Output is correct
2 Correct 58 ms 20272 KB Output is correct
3 Correct 476 ms 20972 KB Output is correct

Subtask #9
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 718 ms 33372 KB Output is correct
2 Correct 92 ms 31716 KB Output is correct
3 Correct 991 ms 33952 KB Output is correct

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 959 ms 46384 KB Output is correct
2 Correct 124 ms 43340 KB Output is correct
3 Execution timed out 1096 ms 43828 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 129 ms 43868 KB Output is correct
2 Correct 123 ms 43340 KB Output is correct
3 Execution timed out 1054 ms 43752 KB Time limit exceeded
4 Halted 0 ms 0 KB -