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Submission #417362

# Submission time Handle Problem Language Result Execution time Memory
417362 2021-06-03T15:32:25 Z doowey Cigle (COI21_cigle) C++14
48 / 100
 1000 ms 40988 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = 5010;
int dp[N][N];
int D[N];

struct Node{
    int val;
    int lzy;
};

Node T[N * 4 + 16];

void push(int node, int cl, int cr){
    T[node].val += T[node].lzy;
    if(cl != cr){
        T[node * 2].lzy += T[node].lzy;
        T[node * 2 + 1].lzy += T[node].lzy;
    }
    T[node].lzy = 0;
}

void update(int node, int cl, int cr, int tl, int tr, int v){
    push(node, cl, cr);
    if(cr < tl || cl > tr) return;
    if(cl >= tl && cr <= tr){
        T[node].lzy = v;
        push(node, cl, cr);
        return;
    }
    int mid = (cl + cr) / 2;
    update(node * 2, cl, mid, tl, tr, v);
    update(node * 2 + 1, mid + 1, cr, tl, tr, v);
    T[node].val = max(T[node * 2].val, T[node * 2 + 1].val);
}

void build(int node, int cl, int cr){
    T[node].val = 0;
    T[node].lzy = 0;
    if(cl == cr) return ;
    int mid = (cl + cr) / 2;
    build(node * 2, cl, mid);
    build(node * 2 + 1, mid + 1, cr);
}

int main(){
    fastIO;
    //freopen("in.txt","r",stdin);
    int n;
    cin >> n;
    for(int i = 1; i <= n; i ++ ){
        cin >> D[i];
    }
    int pp;
    int cum;
    int cur;
    int outp = 0;
    for(int cut = 2; cut <= n; cut ++ ){
        build(1, 1, n );
        for(int j = cut - 1; j >= 1; j -- ){
            update(1, 1, n, j, j, dp[j][cut - 1]);
        }
        cur = 0;
        cum = 0;
        pp = cut;
        for(int go = cut; go <= n; go ++ ){
            dp[cut][go] = T[1].val;
            if(go == n)
                outp = max(outp, dp[cut][go]);

            cur += D[go];
            while(pp > 1 && cum < cur){
                pp --;
                cum += D[pp];
            }
            if(cum == cur){
                update(1, 1, n, 1, pp - 1, +1);
            }
        }
    }
    cout << outp << "\n";
    return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 588 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 576 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 2760 KB Output is correct
2 Correct 34 ms 2756 KB Output is correct
3 Correct 32 ms 2748 KB Output is correct
4 Correct 36 ms 2804 KB Output is correct
5 Correct 34 ms 2828 KB Output is correct
6 Correct 33 ms 2700 KB Output is correct
7 Correct 33 ms 2736 KB Output is correct
8 Correct 34 ms 2740 KB Output is correct
9 Correct 36 ms 2764 KB Output is correct
10 Correct 32 ms 2788 KB Output is correct
11 Correct 33 ms 2756 KB Output is correct
12 Correct 32 ms 2796 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 588 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 576 KB Output is correct
21 Correct 32 ms 2760 KB Output is correct
22 Correct 34 ms 2756 KB Output is correct
23 Correct 32 ms 2748 KB Output is correct
24 Correct 36 ms 2804 KB Output is correct
25 Correct 34 ms 2828 KB Output is correct
26 Correct 33 ms 2700 KB Output is correct
27 Correct 33 ms 2736 KB Output is correct
28 Correct 34 ms 2740 KB Output is correct
29 Correct 36 ms 2764 KB Output is correct
30 Correct 32 ms 2788 KB Output is correct
31 Correct 33 ms 2756 KB Output is correct
32 Correct 32 ms 2796 KB Output is correct
33 Correct 32 ms 2704 KB Output is correct
34 Correct 32 ms 2836 KB Output is correct
35 Correct 33 ms 2740 KB Output is correct
36 Correct 33 ms 2756 KB Output is correct
37 Correct 33 ms 2756 KB Output is correct
38 Correct 33 ms 2796 KB Output is correct
39 Correct 28 ms 2720 KB Output is correct
40 Correct 26 ms 2748 KB Output is correct
41 Correct 26 ms 2768 KB Output is correct
42 Correct 27 ms 2744 KB Output is correct
43 Correct 27 ms 2732 KB Output is correct
44 Correct 27 ms 2764 KB Output is correct
45 Correct 27 ms 2816 KB Output is correct
46 Correct 27 ms 2724 KB Output is correct
47 Correct 28 ms 2836 KB Output is correct
48 Correct 27 ms 2700 KB Output is correct
49 Correct 27 ms 2712 KB Output is correct

Subtask #5
0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 588 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 576 KB Output is correct
21 Correct 32 ms 2760 KB Output is correct
22 Correct 34 ms 2756 KB Output is correct
23 Correct 32 ms 2748 KB Output is correct
24 Correct 36 ms 2804 KB Output is correct
25 Correct 34 ms 2828 KB Output is correct
26 Correct 33 ms 2700 KB Output is correct
27 Correct 33 ms 2736 KB Output is correct
28 Correct 34 ms 2740 KB Output is correct
29 Correct 36 ms 2764 KB Output is correct
30 Correct 32 ms 2788 KB Output is correct
31 Correct 33 ms 2756 KB Output is correct
32 Correct 32 ms 2796 KB Output is correct
33 Correct 32 ms 2704 KB Output is correct
34 Correct 32 ms 2836 KB Output is correct
35 Correct 33 ms 2740 KB Output is correct
36 Correct 33 ms 2756 KB Output is correct
37 Correct 33 ms 2756 KB Output is correct
38 Correct 33 ms 2796 KB Output is correct
39 Correct 28 ms 2720 KB Output is correct
40 Correct 26 ms 2748 KB Output is correct
41 Correct 26 ms 2768 KB Output is correct
42 Correct 27 ms 2744 KB Output is correct
43 Correct 27 ms 2732 KB Output is correct
44 Correct 27 ms 2764 KB Output is correct
45 Correct 27 ms 2816 KB Output is correct
46 Correct 27 ms 2724 KB Output is correct
47 Correct 28 ms 2836 KB Output is correct
48 Correct 27 ms 2700 KB Output is correct
49 Correct 27 ms 2712 KB Output is correct
50 Execution timed out 1095 ms 40988 KB Time limit exceeded
51 Halted 0 ms 0 KB -