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Submission #701415

# Submission time Handle Problem Language Result Execution time Memory
701415 2023-02-21T08:13:29 Z tamthegod Lightning Conductor (POI11_pio) C++17
72 / 100
 1000 ms 65536 KB 
// Make the best become better
// No room for laziness
#include<bits/stdc++.h>

#define int long long
#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 = 1e6 + 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]);
        }
}
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 = 1;
        while(true)
        {
            int r = i - (len - 1) * (len - 1) - 1;
            int l = i - len * len;
            l = max(1ll, l);
            if(l > r) break;
            res = max(res, get(l, r) + len - a[i]);
            len++;
        }
        len = 1;
        while(true)
        {
            int l = i + (len - 1) * (len - 1) + 1;
            int r = i + len * len;
            r = min(r, n);
            if(l > 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 4 ms 8148 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8148 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8276 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 12464 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 15548 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 17392 KB Output is correct
2 Correct 107 ms 17180 KB Output is correct
3 Correct 107 ms 17584 KB Output is correct

Subtask #7
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 193 ms 22712 KB Output is correct
2 Correct 226 ms 22796 KB Output is correct
3 Correct 188 ms 23316 KB Output is correct

Subtask #8
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 690 ms 43456 KB Output is correct
2 Correct 855 ms 43336 KB Output is correct
3 Correct 659 ms 44028 KB Output is correct

Subtask #9
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1054 ms 65536 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 78 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 79 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -