oj.uz

Submission #1110036

# Submission time Handle Problem Language Result Execution time Memory
1110036 2024-11-08T14:07:35 Z cpptowin K blocks (IZhO14_blocks) C++17
53 / 100
 1000 ms 84812 KB 
#include <bits/stdc++.h>
#define fo(i, d, c) for (int i = d; i <= c; i++)
#define fod(i, c, d) for (int i = c; i >= d; i--)
#define maxn 1000010
#define N 1010
#define fi first
#define se second
#define pb emplace_back
#define en cout << "\n";
#define inf (int)1e9
#define bitcount(x) __builtin_popcountll(x)
#define pii pair<int, int>
#define vii vector<pii>
#define lb(x) x & -x
#define bit(i, j) ((i >> j) & 1)
#define offbit(i, j) (i ^ (1LL << j))
#define onbit(i, j) (i | (1LL << j))
#define vi vector<int>
#define all(x) x.begin(), x.end()
#define ss(x) (int)x.size()
#define UNIQUE(v) v.erase(unique(all(v)), v.end())
template <typename T1, typename T2>
bool minimize(T1 &a, T2 b)
{
    if (a > b)
    {
        a = b;
        return true;
    }
    return false;
}
template <typename T1, typename T2>
bool maximize(T1 &a, T2 b)
{
    if (a < b)
    {
        a = b;
        return true;
    }
    return false;
}
using namespace std;
const int nsqrt = 450;
const int mod = 1e9 + 7;
void add(int &x, int k)
{
    x += k;
    x %= mod;
    if (x < 0)
        x += mod;
}
void del(int &x, int k)
{
    x -= k;
    x %= mod;
    if (x < 0)
        x += mod;
}
int n, k, a[maxn];
int l[maxn], r[maxn], f[2][maxn];
void L(int a[], int n, int ans[])
{
    stack<int> st;
    fo(i, 1, n)
    {
        while (st.size() and a[st.top()] <= a[i])
            st.pop();
        ans[i] = (st.empty() ? 0 : st.top());
        st.push(i);
    }
}
void R(int a[], int n, int ans[])
{
    stack<int> st;
    fod(i, n, 1)
    {
        while (st.size() and a[st.top()] <= a[i])
            st.pop();
        ans[i] = (st.empty() ? n + 1 : st.top());
        st.push(i);
    }
}
int rmq[maxn][18];
int get(int l,int r) 
{
    if(l > r) return inf;
    int lg = __lg(r - l + 1);
    return min(rmq[l][lg],rmq[r - (1 << lg) + 1][lg]);
}
main()
{
#define name "TASK"
    if (fopen(name ".inp", "r"))
    {
        freopen(name ".inp", "r", stdin);
        freopen(name ".out", "w", stdout);
    }
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> k;
    fo(i, 1, n) cin >> a[i];
    L(a, n, l);
    R(a, n, r);
    int maxx = 0;
    fo(i,1,n) maximize(maxx,a[i]),f[1][i] = maxx;
    fo(j, 2, k)
    {
        priority_queue<pii,vii,greater<pii>> q;
        fo(i,1,maxn - 1) fo(k,0,17) rmq[i][k] = inf;
        fo(i,1,n) rmq[i][0] = f[j & 1 ^ 1][i];
        fo(k,1,17) fo(i,1,n)
        rmq[i][k] = min(rmq[i][k - 1],rmq[i + (1 << k - 1)][k - 1]);
        fo(i, 1, n)
        {
            f[j & 1][i] = get(max(l[i],1), i - 1) + a[i];
            while(ss(q) and q.top().se < i) q.pop();
            if(ss(q))
            minimize(f[j & 1][i],q.top().fi);
            q.push({f[j & 1][i],r[i] - 1});
        }
    }
    int ans = inf;
    fod(i, n, 1) if (r[i] == n + 1) minimize(ans, f[k & 1][i]);
    cout << ans;
}

Compilation message

blocks.cpp:90:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   90 | main()
      | ^~~~
blocks.cpp: In function 'int main()':
blocks.cpp:110:35: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
  110 |         fo(i,1,n) rmq[i][0] = f[j & 1 ^ 1][i];
      |                                 ~~^~~
blocks.cpp:112:55: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
  112 |         rmq[i][k] = min(rmq[i][k - 1],rmq[i + (1 << k - 1)][k - 1]);
      |                                                     ~~^~~
blocks.cpp:95:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |         freopen(name ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:96:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   96 |         freopen(name ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8528 KB Output is correct
2 Correct 2 ms 8528 KB Output is correct
3 Correct 2 ms 8528 KB Output is correct
4 Correct 15 ms 80564 KB Output is correct
5 Correct 14 ms 80464 KB Output is correct
6 Correct 2 ms 8528 KB Output is correct
7 Correct 15 ms 80596 KB Output is correct
8 Correct 15 ms 80464 KB Output is correct
9 Correct 22 ms 80636 KB Output is correct
10 Correct 28 ms 80600 KB Output is correct
11 Correct 35 ms 80464 KB Output is correct
12 Correct 1 ms 8528 KB Output is correct
13 Correct 38 ms 80464 KB Output is correct
14 Correct 37 ms 80584 KB Output is correct
15 Correct 1 ms 8528 KB Output is correct
16 Correct 23 ms 80664 KB Output is correct
17 Correct 1 ms 8700 KB Output is correct
18 Correct 35 ms 80464 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8528 KB Output is correct
2 Correct 1 ms 8664 KB Output is correct
3 Correct 2 ms 8528 KB Output is correct
4 Correct 15 ms 80464 KB Output is correct
5 Correct 15 ms 80540 KB Output is correct
6 Correct 1 ms 8528 KB Output is correct
7 Correct 15 ms 80464 KB Output is correct
8 Correct 15 ms 80464 KB Output is correct
9 Correct 22 ms 80560 KB Output is correct
10 Correct 29 ms 80464 KB Output is correct
11 Correct 40 ms 80764 KB Output is correct
12 Correct 42 ms 80464 KB Output is correct
13 Correct 48 ms 80464 KB Output is correct
14 Correct 74 ms 80464 KB Output is correct
15 Correct 68 ms 80660 KB Output is correct
16 Correct 131 ms 80604 KB Output is correct
17 Correct 113 ms 80464 KB Output is correct
18 Correct 71 ms 80464 KB Output is correct
19 Correct 115 ms 80640 KB Output is correct
20 Correct 144 ms 80564 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8528 KB Output is correct
2 Correct 2 ms 8528 KB Output is correct
3 Correct 2 ms 8528 KB Output is correct
4 Correct 15 ms 80564 KB Output is correct
5 Correct 14 ms 80464 KB Output is correct
6 Correct 2 ms 8528 KB Output is correct
7 Correct 15 ms 80596 KB Output is correct
8 Correct 15 ms 80464 KB Output is correct
9 Correct 22 ms 80636 KB Output is correct
10 Correct 28 ms 80600 KB Output is correct
11 Correct 35 ms 80464 KB Output is correct
12 Correct 1 ms 8528 KB Output is correct
13 Correct 38 ms 80464 KB Output is correct
14 Correct 37 ms 80584 KB Output is correct
15 Correct 1 ms 8528 KB Output is correct
16 Correct 23 ms 80664 KB Output is correct
17 Correct 1 ms 8700 KB Output is correct
18 Correct 35 ms 80464 KB Output is correct
19 Correct 2 ms 8528 KB Output is correct
20 Correct 1 ms 8664 KB Output is correct
21 Correct 2 ms 8528 KB Output is correct
22 Correct 15 ms 80464 KB Output is correct
23 Correct 15 ms 80540 KB Output is correct
24 Correct 1 ms 8528 KB Output is correct
25 Correct 15 ms 80464 KB Output is correct
26 Correct 15 ms 80464 KB Output is correct
27 Correct 22 ms 80560 KB Output is correct
28 Correct 29 ms 80464 KB Output is correct
29 Correct 40 ms 80764 KB Output is correct
30 Correct 42 ms 80464 KB Output is correct
31 Correct 48 ms 80464 KB Output is correct
32 Correct 74 ms 80464 KB Output is correct
33 Correct 68 ms 80660 KB Output is correct
34 Correct 131 ms 80604 KB Output is correct
35 Correct 113 ms 80464 KB Output is correct
36 Correct 71 ms 80464 KB Output is correct
37 Correct 115 ms 80640 KB Output is correct
38 Correct 144 ms 80564 KB Output is correct
39 Correct 382 ms 80568 KB Output is correct
40 Correct 2 ms 8528 KB Output is correct
41 Correct 2 ms 8528 KB Output is correct
42 Correct 2 ms 8528 KB Output is correct
43 Correct 15 ms 80464 KB Output is correct
44 Correct 15 ms 80464 KB Output is correct
45 Correct 2 ms 8528 KB Output is correct
46 Correct 15 ms 80464 KB Output is correct
47 Correct 16 ms 80464 KB Output is correct
48 Correct 22 ms 80464 KB Output is correct
49 Correct 29 ms 80464 KB Output is correct
50 Correct 35 ms 80476 KB Output is correct
51 Correct 187 ms 80652 KB Output is correct
52 Correct 207 ms 80464 KB Output is correct
53 Correct 758 ms 80464 KB Output is correct
54 Correct 709 ms 80652 KB Output is correct
55 Correct 377 ms 80464 KB Output is correct
56 Correct 707 ms 80656 KB Output is correct
57 Correct 702 ms 80712 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8528 KB Output is correct
2 Correct 2 ms 8528 KB Output is correct
3 Correct 2 ms 8528 KB Output is correct
4 Correct 15 ms 80564 KB Output is correct
5 Correct 14 ms 80464 KB Output is correct
6 Correct 2 ms 8528 KB Output is correct
7 Correct 15 ms 80596 KB Output is correct
8 Correct 15 ms 80464 KB Output is correct
9 Correct 22 ms 80636 KB Output is correct
10 Correct 28 ms 80600 KB Output is correct
11 Correct 35 ms 80464 KB Output is correct
12 Correct 1 ms 8528 KB Output is correct
13 Correct 38 ms 80464 KB Output is correct
14 Correct 37 ms 80584 KB Output is correct
15 Correct 1 ms 8528 KB Output is correct
16 Correct 23 ms 80664 KB Output is correct
17 Correct 1 ms 8700 KB Output is correct
18 Correct 35 ms 80464 KB Output is correct
19 Correct 2 ms 8528 KB Output is correct
20 Correct 1 ms 8664 KB Output is correct
21 Correct 2 ms 8528 KB Output is correct
22 Correct 15 ms 80464 KB Output is correct
23 Correct 15 ms 80540 KB Output is correct
24 Correct 1 ms 8528 KB Output is correct
25 Correct 15 ms 80464 KB Output is correct
26 Correct 15 ms 80464 KB Output is correct
27 Correct 22 ms 80560 KB Output is correct
28 Correct 29 ms 80464 KB Output is correct
29 Correct 40 ms 80764 KB Output is correct
30 Correct 42 ms 80464 KB Output is correct
31 Correct 48 ms 80464 KB Output is correct
32 Correct 74 ms 80464 KB Output is correct
33 Correct 68 ms 80660 KB Output is correct
34 Correct 131 ms 80604 KB Output is correct
35 Correct 113 ms 80464 KB Output is correct
36 Correct 71 ms 80464 KB Output is correct
37 Correct 115 ms 80640 KB Output is correct
38 Correct 144 ms 80564 KB Output is correct
39 Correct 382 ms 80568 KB Output is correct
40 Correct 2 ms 8528 KB Output is correct
41 Correct 2 ms 8528 KB Output is correct
42 Correct 2 ms 8528 KB Output is correct
43 Correct 15 ms 80464 KB Output is correct
44 Correct 15 ms 80464 KB Output is correct
45 Correct 2 ms 8528 KB Output is correct
46 Correct 15 ms 80464 KB Output is correct
47 Correct 16 ms 80464 KB Output is correct
48 Correct 22 ms 80464 KB Output is correct
49 Correct 29 ms 80464 KB Output is correct
50 Correct 35 ms 80476 KB Output is correct
51 Correct 187 ms 80652 KB Output is correct
52 Correct 207 ms 80464 KB Output is correct
53 Correct 758 ms 80464 KB Output is correct
54 Correct 709 ms 80652 KB Output is correct
55 Correct 377 ms 80464 KB Output is correct
56 Correct 707 ms 80656 KB Output is correct
57 Correct 702 ms 80712 KB Output is correct
58 Correct 190 ms 80740 KB Output is correct
59 Correct 5 ms 11088 KB Output is correct
60 Correct 71 ms 82768 KB Output is correct
61 Correct 750 ms 82772 KB Output is correct
62 Execution timed out 1056 ms 84812 KB Time limit exceeded
63 Halted 0 ms 0 KB -