oj.uz

Submission #96018

# Submission time Handle Problem Language Result Execution time Memory
96018 2019-02-05T09:08:48 Z Kastanda K blocks (IZhO14_blocks) C++11
53 / 100
 1000 ms 4344 KB 
#include<bits/stdc++.h>
#define lc (id << 1)
#define rc (id << 1 ^ 1)
#define md ((l + r) >> 1)
using namespace std;
const int N = 100005, K = 104, INF = 30000 * 10000;
int n, k, A[N], dp[2][N], stk[N];
int mn[N * 4], lazy[N * 4];
int le, ri, val;
void Add(int id = 1, int l = 0, int r = n + 1)
{
    if (ri <= l || r <= le)
        return ;
    if (le <= l && r <= ri)
    {
        lazy[id] += val;
        mn[id] += val;
        return ;
    }
    Add(lc, l, md);
    Add(rc, md, r);
    mn[id] = min(mn[lc], mn[rc]) + lazy[id];
}
int Get(int id = 1, int l = 0, int r = n + 1)
{
    if (ri <= l || r <= le)
        return (INF);
    if (le <= l && r <= ri)
        return (mn[id]);
    return (min(Get(lc, l, md), Get(rc, md, r)) + lazy[id]);
}
inline void Adder(int _le, int _ri, int _val) {le = _le; ri = _ri; val = _val; Add();}
inline int Getter(int _le, int _ri) {le = _le; ri = _ri; return (Get());}
int main()
{
    scanf("%d%d", &n, &k);
    for (int i = 1; i <= n; i++)
    {
        scanf("%d", &A[i]);
        dp[0][i] = dp[1][i] = INF;
    }
    A[0] = dp[1][0] = INF;
    for (int j = 1; j <= k; j++)
    {
        int w = j & 1;
        int r = 1;
        memset(mn, 0, sizeof(mn));
        memset(lazy, 0, sizeof(lazy));
        Adder(0, 1, dp[!w][0]);
        dp[w][0] = INF;
        for (int i = 1; i <= n; i++)
        {
            while (A[stk[r]] <= A[i])
                Adder(stk[r - 1], stk[r], A[i] - A[stk[r]]), r --;
            stk[++ r] = i;
            Adder(i - 1, i, A[i]);
            dp[w][i] = Getter(0, i);
            Adder(i, i + 1, dp[!w][i]);
        }
    }
    return !printf("%d\n", dp[k & 1][n]);
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~
blocks.cpp:39:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &A[i]);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3448 KB Output is correct
2 Correct 4 ms 3448 KB Output is correct
3 Correct 4 ms 3448 KB Output is correct
4 Correct 4 ms 3448 KB Output is correct
5 Correct 4 ms 3448 KB Output is correct
6 Correct 4 ms 3448 KB Output is correct
7 Correct 5 ms 3448 KB Output is correct
8 Correct 4 ms 3448 KB Output is correct
9 Correct 4 ms 3320 KB Output is correct
10 Correct 5 ms 3448 KB Output is correct
11 Correct 5 ms 3448 KB Output is correct
12 Correct 4 ms 3448 KB Output is correct
13 Correct 5 ms 3448 KB Output is correct
14 Correct 5 ms 3448 KB Output is correct
15 Correct 4 ms 3448 KB Output is correct
16 Correct 5 ms 3448 KB Output is correct
17 Correct 4 ms 3448 KB Output is correct
18 Correct 5 ms 3448 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3448 KB Output is correct
2 Correct 4 ms 3508 KB Output is correct
3 Correct 4 ms 3448 KB Output is correct
4 Correct 4 ms 3448 KB Output is correct
5 Correct 4 ms 3420 KB Output is correct
6 Correct 4 ms 3448 KB Output is correct
7 Correct 5 ms 3448 KB Output is correct
8 Correct 4 ms 3452 KB Output is correct
9 Correct 5 ms 3452 KB Output is correct
10 Correct 5 ms 3448 KB Output is correct
11 Correct 5 ms 3448 KB Output is correct
12 Correct 5 ms 3448 KB Output is correct
13 Correct 5 ms 3448 KB Output is correct
14 Correct 5 ms 3448 KB Output is correct
15 Correct 6 ms 3448 KB Output is correct
16 Correct 7 ms 3448 KB Output is correct
17 Correct 6 ms 3452 KB Output is correct
18 Correct 6 ms 3448 KB Output is correct
19 Correct 6 ms 3448 KB Output is correct
20 Correct 7 ms 3448 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 3448 KB Output is correct
2 Correct 4 ms 3492 KB Output is correct
3 Correct 4 ms 3448 KB Output is correct
4 Correct 4 ms 3448 KB Output is correct
5 Correct 4 ms 3448 KB Output is correct
6 Correct 5 ms 3448 KB Output is correct
7 Correct 4 ms 3448 KB Output is correct
8 Correct 4 ms 3448 KB Output is correct
9 Correct 4 ms 3448 KB Output is correct
10 Correct 4 ms 3448 KB Output is correct
11 Correct 5 ms 3448 KB Output is correct
12 Correct 5 ms 3448 KB Output is correct
13 Correct 8 ms 3448 KB Output is correct
14 Correct 8 ms 3448 KB Output is correct
15 Correct 22 ms 3448 KB Output is correct
16 Correct 20 ms 3448 KB Output is correct
17 Correct 12 ms 3448 KB Output is correct
18 Correct 20 ms 3448 KB Output is correct
19 Correct 20 ms 3448 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 127 ms 3704 KB Output is correct
2 Correct 33 ms 4344 KB Output is correct
3 Correct 175 ms 4344 KB Output is correct
4 Execution timed out 1068 ms 4284 KB Time limit exceeded
5 Halted 0 ms 0 KB -