oj.uz

Submission #470494

# Submission time Handle Problem Language Result Execution time Memory
470494 2021-09-04T05:45:55 Z lethinh05 K blocks (IZhO14_blocks) C++11
100 / 100
 200 ms 40108 KB 
#include <bits/stdc++.h>

#define oo 1000000007
#define ll long long
#define ii pair<int, int>
#define pll pair<ll, ll>
#define ff first
#define ss second
#define mp make_pair
#define vi vector<int>
#define vii vector<ii>
#define sz(a) (int)(a.size())
#define pb push_back
#define fto(i, a, b) for (int i = (int)(a); i <= (int)(b); ++i)
#define fdto(i, a, b) for (int i = (int)(a); i >= (int)(b); --i)
#define sci(x) scanf("%d", &x)
#define scii(x, y) scanf("%d %d", &x, &y)
#define bug(x) "["#x" = "<<(x)<<"] "
#define maxN 100005

using namespace std;

int n, k, a[maxN], f[105][maxN];

int main() {
    #ifndef EVAL
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif

    scii(n, k);
    fto(i, 1, n) sci(a[i]);

    fto(i, 1, n) f[1][i] = max(f[1][i-1], a[i]);
    fto(i, 2, k) {
        f[i][0] = oo;
        stack<ii> S;

        fto(j, i, n) {
            int mn = f[i-1][j-1];

            while (!S.empty() && a[S.top().ss] <= a[j]) {
                mn = min(mn, S.top().ff);
                S.pop();
            }

            f[i][j] = min(f[i][S.empty() ? 0 : S.top().ss], mn + a[j]);
            S.push(mp(mn, j));
        }
    }

    printf("%d\n", f[k][n]);
    return 0;
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:17:25: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 | #define scii(x, y) scanf("%d %d", &x, &y)
      |                    ~~~~~^~~~~~~~~~~~~~~~~
blocks.cpp:31:5: note: in expansion of macro 'scii'
   31 |     scii(n, k);
      |     ^~~~
blocks.cpp:16:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 | #define sci(x) scanf("%d", &x)
      |                ~~~~~^~~~~~~~~~
blocks.cpp:32:18: note: in expansion of macro 'sci'
   32 |     fto(i, 1, n) sci(a[i]);
      |                  ^~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 332 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 412 KB Output is correct
20 Correct 0 ms 332 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 1 ms 412 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 0 ms 204 KB Output is correct
41 Correct 0 ms 204 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 0 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 0 ms 204 KB Output is correct
50 Correct 0 ms 204 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 716 KB Output is correct
54 Correct 1 ms 716 KB Output is correct
55 Correct 1 ms 588 KB Output is correct
56 Correct 1 ms 716 KB Output is correct
57 Correct 1 ms 716 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 1 ms 412 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 0 ms 204 KB Output is correct
41 Correct 0 ms 204 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 0 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 0 ms 204 KB Output is correct
50 Correct 0 ms 204 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 716 KB Output is correct
54 Correct 1 ms 716 KB Output is correct
55 Correct 1 ms 588 KB Output is correct
56 Correct 1 ms 716 KB Output is correct
57 Correct 1 ms 716 KB Output is correct
58 Correct 5 ms 1356 KB Output is correct
59 Correct 6 ms 588 KB Output is correct
60 Correct 11 ms 1612 KB Output is correct
61 Correct 53 ms 14020 KB Output is correct
62 Correct 151 ms 39844 KB Output is correct
63 Correct 16 ms 1788 KB Output is correct
64 Correct 76 ms 18428 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 460 KB Output is correct
67 Correct 1 ms 460 KB Output is correct
68 Correct 1 ms 460 KB Output is correct
69 Correct 1 ms 204 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 20 ms 4624 KB Output is correct
72 Correct 2 ms 332 KB Output is correct
73 Correct 7 ms 1356 KB Output is correct
74 Correct 6 ms 588 KB Output is correct
75 Correct 12 ms 1612 KB Output is correct
76 Correct 69 ms 13940 KB Output is correct
77 Correct 200 ms 39728 KB Output is correct
78 Correct 17 ms 1844 KB Output is correct
79 Correct 95 ms 18184 KB Output is correct
80 Correct 19 ms 1072 KB Output is correct
81 Correct 30 ms 4576 KB Output is correct
82 Correct 196 ms 39772 KB Output is correct
83 Correct 1 ms 204 KB Output is correct
84 Correct 1 ms 332 KB Output is correct
85 Correct 17 ms 4656 KB Output is correct
86 Correct 2 ms 460 KB Output is correct
87 Correct 6 ms 1468 KB Output is correct
88 Correct 6 ms 588 KB Output is correct
89 Correct 11 ms 1740 KB Output is correct
90 Correct 59 ms 14092 KB Output is correct
91 Correct 171 ms 40108 KB Output is correct
92 Correct 19 ms 2020 KB Output is correct
93 Correct 83 ms 18476 KB Output is correct
94 Correct 2 ms 332 KB Output is correct
95 Correct 16 ms 4736 KB Output is correct
96 Correct 1 ms 332 KB Output is correct
97 Correct 1 ms 204 KB Output is correct
98 Correct 1 ms 332 KB Output is correct
99 Correct 0 ms 332 KB Output is correct