oj.uz

Submission #697510

# Submission time Handle Problem Language Result Execution time Memory
697510 2023-02-10T07:26:45 Z Bobonbush Discharging (NOI20_discharging) C++17
72 / 100
 114 ms 32200 KB 
#include <bits/stdc++.h>
#define foreach for
#define in :
using namespace std;
typedef long long ll ;
const int LOG = 18;
const long long base = 31;
const long long MODULO = 1e9+7;
const long long INF = 1e18+1;
template<class X ,class Y>
    bool Minimize(X &x , Y y)
    {
        if(x > y)
        {
            x = y;
            return true;
        }
        return false;
    }
template<class X , class Y>
    bool Maximize(X &x , Y y)
    {
        if(x < y)
        {
            x = y;
            return true;
        }
        return false;
    }
struct lines
{
    ll a ,b;
    lines(ll _a , ll _b )
    {
        a = _a;
        b = _b;
    }
    ll eval(ll x)
    {
        return a *x + b;
    }
};
deque<lines>adu;


bool bad(lines &l1 , lines &l2 ,lines &l3)
{
    return (l3.b - l1.b) * (l1.a - l2.a) < (l2.b - l1.b) * (l1.a - l3.a);
}
void Add(lines x)
{
    while((int)adu.size() >= 2 && bad( adu[(int)adu.size()-2] , adu[(int)adu.size()-1] , x  ))
    {
        adu.pop_back();
    }
    adu.push_back(x);
}

ll Get(ll x)
{
    while((int)adu.size() >= 2 && adu[0].eval(x) >= adu[1].eval(x)  )adu.pop_front();
    return adu[0].eval(x);
}
const int N = 1e6+1;
int n , a[N];
int _next[N];
long long dp[N];
void Input()
{
    cin >> n ;
    for(int i = 1; i <= n ; i++)
    {
        cin >> a[i];
        if(a[_next[i-1]]  <=  a[i])_next[i] = i;
        else _next[i] = _next[i-1];
    }
}
void Process()
{
    Add(lines(0 , 0));
    for(int i =1 ; i <= n ; i++)
    {
        if(_next[i] != i)dp[i] = dp[i-1];
        else dp[i] = Get(a[i]) + n *1LL * a[i];
        Add(lines( -i * 1LL , dp[i] ));
    }
    cout << dp[n];
}
int main()
{
    ios_base :: sync_with_stdio(0);cin.tie(0);
    int test = 1;
    while(test--)
    {
        Input();
        Process();
    }
    return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 91 ms 15852 KB Output is correct
17 Correct 92 ms 16024 KB Output is correct
18 Correct 82 ms 15932 KB Output is correct
19 Correct 92 ms 15864 KB Output is correct
20 Correct 95 ms 15948 KB Output is correct
21 Correct 91 ms 15908 KB Output is correct
22 Correct 89 ms 15972 KB Output is correct
23 Correct 98 ms 15916 KB Output is correct
24 Correct 96 ms 15888 KB Output is correct
25 Correct 110 ms 15892 KB Output is correct
26 Correct 98 ms 15892 KB Output is correct
27 Correct 88 ms 15972 KB Output is correct
28 Correct 91 ms 15948 KB Output is correct
29 Correct 114 ms 15952 KB Output is correct
30 Correct 99 ms 15828 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 32148 KB Output is correct
2 Correct 106 ms 32200 KB Output is correct
3 Correct 111 ms 32196 KB Output is correct
4 Correct 114 ms 32120 KB Output is correct
5 Correct 110 ms 32128 KB Output is correct
6 Correct 110 ms 32132 KB Output is correct
7 Correct 108 ms 32180 KB Output is correct
8 Correct 107 ms 32128 KB Output is correct
9 Correct 109 ms 32140 KB Output is correct
10 Correct 108 ms 32180 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 0 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 0 ms 340 KB Output is correct

Subtask #6
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 91 ms 15852 KB Output is correct
31 Correct 92 ms 16024 KB Output is correct
32 Correct 82 ms 15932 KB Output is correct
33 Correct 92 ms 15864 KB Output is correct
34 Correct 95 ms 15948 KB Output is correct
35 Correct 91 ms 15908 KB Output is correct
36 Correct 89 ms 15972 KB Output is correct
37 Correct 98 ms 15916 KB Output is correct
38 Correct 96 ms 15888 KB Output is correct
39 Correct 110 ms 15892 KB Output is correct
40 Correct 98 ms 15892 KB Output is correct
41 Correct 88 ms 15972 KB Output is correct
42 Correct 91 ms 15948 KB Output is correct
43 Correct 114 ms 15952 KB Output is correct
44 Correct 99 ms 15828 KB Output is correct
45 Correct 105 ms 32148 KB Output is correct
46 Correct 106 ms 32200 KB Output is correct
47 Correct 111 ms 32196 KB Output is correct
48 Correct 114 ms 32120 KB Output is correct
49 Correct 110 ms 32128 KB Output is correct
50 Correct 110 ms 32132 KB Output is correct
51 Correct 108 ms 32180 KB Output is correct
52 Correct 107 ms 32128 KB Output is correct
53 Correct 109 ms 32140 KB Output is correct
54 Correct 108 ms 32180 KB Output is correct
55 Correct 0 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 0 ms 340 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 0 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 0 ms 340 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 0 ms 340 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 1 ms 340 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 1 ms 340 KB Output is correct
72 Correct 1 ms 340 KB Output is correct
73 Correct 1 ms 340 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 0 ms 340 KB Output is correct
76 Correct 87 ms 15952 KB Output is correct
77 Incorrect 97 ms 15928 KB Output isn't correct
78 Halted 0 ms 0 KB -