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Submission #404541

# Submission time Handle Problem Language Result Execution time Memory
404541 2021-05-14T14:59:23 Z Fidisk Discharging (NOI20_discharging) C++14
100 / 100
 972 ms 965156 KB 
#include <bits/stdc++.h>
using namespace std;

#define oo 1e15
#define fi first
#define se second
#define sp(iiii) setprecision(iiii)
#define IO ios_base::sync_with_stdio(false); cin.tie(0)
#define ms(aaaa,xxxx) memset(aaaa,xxxx,sizeof(aaaa))
#define cntbit(xxxx) __builtin_popcount(xxxx)
#define getbit(xxxx,aaaa) ((xxxx>>(aaaa-1))&1)

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<pair<int,int>,int> piii;
typedef pair<long long,long long> pll;
typedef pair<pair<long long,long long>,long long> plll;
typedef pair<pair<long long,long long>,pair<long long,long long>> pllll;
typedef pair<pair<long long,long long>,bool> pllb;

const ll base=361;
const ll mod=998244353;
const ld eps=1e-5;
const ll maxn=1e9+9;

ll n,i,j,a[1000009],f[1000009],sizet;

struct segtree_ele{
    pll line;
    ll l,r;
} segtree[30000009];

ll getval(pll line,ll gt) {
    return line.fi*gt+line.se;
}

ll getnode(ll &x) {
    if (x!=0) {
        return x;
    }
    sizet++;
    x=sizet;
    segtree[x].l=0;
    segtree[x].r=0;
    segtree[x].line={0,-oo};
    return x;
}

void update(ll id,ll l,ll r,pll line) {
    if (line.fi<segtree[id].line.fi) {
        swap(segtree[id].line,line);
    }
    if (line.fi==segtree[id].line.fi) {
        segtree[id].line.se=max(segtree[id].line.se,line.se);
        return;
    }
    if (r-l==1) {
        return;
    }
    ll mid=(r+l)/2;
    if (getval(line,l)>getval(segtree[id].line,l)) {
        swap(line,segtree[id].line);
        update(getnode(segtree[id].l),l,mid,line);
    }
    else {
        if (getval(line,mid)>getval(segtree[id].line,mid)) {
            swap(segtree[id].line,line);
            update(getnode(segtree[id].l),l,mid,line);
        }
        else {
            update(getnode(segtree[id].r),mid,r,line);
        }
    }
}

ll get(ll id,ll l,ll r,ll gt) {
    if (r-l==1) {
        return getval(segtree[id].line,gt);
    }
    ll mid=(r+l)/2;
    if (gt<mid) {
        return max(getval(segtree[id].line,gt),get(getnode(segtree[id].l),l,mid,gt));
    }
    else {
        return max(getval(segtree[id].line,gt),get(getnode(segtree[id].r),mid,r,gt));
    }
}
int main(){
    IO;
    sizet=0;
    getnode(n);
    cin>>n;
    for (i=1;i<=n;i++) {
        cin>>a[i];
        a[i]=max(a[i-1],a[i]);
    }
    update(1,1,maxn,{0,0});
    for (i=1;i<=n;i++) {
        f[i]=-get(1,1,maxn,a[i])+n*a[i];
        update(1,1,maxn,{i,-f[i]});
    }
    cout<<f[n]<<'\n';
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 939588 KB Output is correct
2 Correct 410 ms 939632 KB Output is correct
3 Correct 410 ms 939560 KB Output is correct
4 Correct 411 ms 939544 KB Output is correct
5 Correct 415 ms 939588 KB Output is correct
6 Correct 412 ms 939524 KB Output is correct
7 Correct 411 ms 939588 KB Output is correct
8 Correct 417 ms 939572 KB Output is correct
9 Correct 405 ms 939608 KB Output is correct
10 Correct 415 ms 939588 KB Output is correct
11 Correct 408 ms 939656 KB Output is correct
12 Correct 411 ms 939600 KB Output is correct
13 Correct 414 ms 939704 KB Output is correct
14 Correct 410 ms 939640 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 410 ms 939684 KB Output is correct
2 Correct 408 ms 939648 KB Output is correct
3 Correct 417 ms 939592 KB Output is correct
4 Correct 417 ms 939568 KB Output is correct
5 Correct 439 ms 939672 KB Output is correct
6 Correct 414 ms 939600 KB Output is correct
7 Correct 413 ms 939728 KB Output is correct
8 Correct 414 ms 939576 KB Output is correct
9 Correct 415 ms 939568 KB Output is correct
10 Correct 459 ms 939776 KB Output is correct
11 Correct 415 ms 939588 KB Output is correct
12 Correct 411 ms 939720 KB Output is correct
13 Correct 404 ms 939668 KB Output is correct
14 Correct 411 ms 939584 KB Output is correct
15 Correct 410 ms 939732 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 410 ms 939684 KB Output is correct
2 Correct 408 ms 939648 KB Output is correct
3 Correct 417 ms 939592 KB Output is correct
4 Correct 417 ms 939568 KB Output is correct
5 Correct 439 ms 939672 KB Output is correct
6 Correct 414 ms 939600 KB Output is correct
7 Correct 413 ms 939728 KB Output is correct
8 Correct 414 ms 939576 KB Output is correct
9 Correct 415 ms 939568 KB Output is correct
10 Correct 459 ms 939776 KB Output is correct
11 Correct 415 ms 939588 KB Output is correct
12 Correct 411 ms 939720 KB Output is correct
13 Correct 404 ms 939668 KB Output is correct
14 Correct 411 ms 939584 KB Output is correct
15 Correct 410 ms 939732 KB Output is correct
16 Correct 887 ms 958980 KB Output is correct
17 Correct 944 ms 961156 KB Output is correct
18 Correct 845 ms 959684 KB Output is correct
19 Correct 903 ms 961096 KB Output is correct
20 Correct 898 ms 960900 KB Output is correct
21 Correct 931 ms 960980 KB Output is correct
22 Correct 905 ms 960716 KB Output is correct
23 Correct 956 ms 961656 KB Output is correct
24 Correct 937 ms 961076 KB Output is correct
25 Correct 948 ms 961568 KB Output is correct
26 Correct 953 ms 961968 KB Output is correct
27 Correct 898 ms 960288 KB Output is correct
28 Correct 897 ms 961172 KB Output is correct
29 Correct 920 ms 961380 KB Output is correct
30 Correct 939 ms 961580 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 832 ms 959240 KB Output is correct
2 Correct 830 ms 964888 KB Output is correct
3 Correct 843 ms 964868 KB Output is correct
4 Correct 846 ms 964928 KB Output is correct
5 Correct 850 ms 965060 KB Output is correct
6 Correct 840 ms 965000 KB Output is correct
7 Correct 832 ms 965156 KB Output is correct
8 Correct 886 ms 964940 KB Output is correct
9 Correct 835 ms 965096 KB Output is correct
10 Correct 862 ms 964960 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 939588 KB Output is correct
2 Correct 410 ms 939632 KB Output is correct
3 Correct 410 ms 939560 KB Output is correct
4 Correct 411 ms 939544 KB Output is correct
5 Correct 415 ms 939588 KB Output is correct
6 Correct 412 ms 939524 KB Output is correct
7 Correct 411 ms 939588 KB Output is correct
8 Correct 417 ms 939572 KB Output is correct
9 Correct 405 ms 939608 KB Output is correct
10 Correct 415 ms 939588 KB Output is correct
11 Correct 408 ms 939656 KB Output is correct
12 Correct 411 ms 939600 KB Output is correct
13 Correct 414 ms 939704 KB Output is correct
14 Correct 410 ms 939640 KB Output is correct
15 Correct 410 ms 939684 KB Output is correct
16 Correct 408 ms 939648 KB Output is correct
17 Correct 417 ms 939592 KB Output is correct
18 Correct 417 ms 939568 KB Output is correct
19 Correct 439 ms 939672 KB Output is correct
20 Correct 414 ms 939600 KB Output is correct
21 Correct 413 ms 939728 KB Output is correct
22 Correct 414 ms 939576 KB Output is correct
23 Correct 415 ms 939568 KB Output is correct
24 Correct 459 ms 939776 KB Output is correct
25 Correct 415 ms 939588 KB Output is correct
26 Correct 411 ms 939720 KB Output is correct
27 Correct 404 ms 939668 KB Output is correct
28 Correct 411 ms 939584 KB Output is correct
29 Correct 410 ms 939732 KB Output is correct
30 Correct 440 ms 939728 KB Output is correct
31 Correct 410 ms 939616 KB Output is correct
32 Correct 429 ms 939648 KB Output is correct
33 Correct 414 ms 939680 KB Output is correct
34 Correct 431 ms 939564 KB Output is correct
35 Correct 421 ms 939608 KB Output is correct
36 Correct 418 ms 939592 KB Output is correct
37 Correct 420 ms 939588 KB Output is correct
38 Correct 423 ms 939716 KB Output is correct
39 Correct 423 ms 939608 KB Output is correct
40 Correct 413 ms 939648 KB Output is correct
41 Correct 433 ms 939720 KB Output is correct
42 Correct 422 ms 939604 KB Output is correct
43 Correct 415 ms 939572 KB Output is correct
44 Correct 415 ms 939652 KB Output is correct
45 Correct 424 ms 939784 KB Output is correct
46 Correct 428 ms 939588 KB Output is correct
47 Correct 417 ms 939620 KB Output is correct
48 Correct 417 ms 939588 KB Output is correct
49 Correct 418 ms 939592 KB Output is correct
50 Correct 417 ms 939596 KB Output is correct

Subtask #6
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 416 ms 939588 KB Output is correct
2 Correct 410 ms 939632 KB Output is correct
3 Correct 410 ms 939560 KB Output is correct
4 Correct 411 ms 939544 KB Output is correct
5 Correct 415 ms 939588 KB Output is correct
6 Correct 412 ms 939524 KB Output is correct
7 Correct 411 ms 939588 KB Output is correct
8 Correct 417 ms 939572 KB Output is correct
9 Correct 405 ms 939608 KB Output is correct
10 Correct 415 ms 939588 KB Output is correct
11 Correct 408 ms 939656 KB Output is correct
12 Correct 411 ms 939600 KB Output is correct
13 Correct 414 ms 939704 KB Output is correct
14 Correct 410 ms 939640 KB Output is correct
15 Correct 410 ms 939684 KB Output is correct
16 Correct 408 ms 939648 KB Output is correct
17 Correct 417 ms 939592 KB Output is correct
18 Correct 417 ms 939568 KB Output is correct
19 Correct 439 ms 939672 KB Output is correct
20 Correct 414 ms 939600 KB Output is correct
21 Correct 413 ms 939728 KB Output is correct
22 Correct 414 ms 939576 KB Output is correct
23 Correct 415 ms 939568 KB Output is correct
24 Correct 459 ms 939776 KB Output is correct
25 Correct 415 ms 939588 KB Output is correct
26 Correct 411 ms 939720 KB Output is correct
27 Correct 404 ms 939668 KB Output is correct
28 Correct 411 ms 939584 KB Output is correct
29 Correct 410 ms 939732 KB Output is correct
30 Correct 887 ms 958980 KB Output is correct
31 Correct 944 ms 961156 KB Output is correct
32 Correct 845 ms 959684 KB Output is correct
33 Correct 903 ms 961096 KB Output is correct
34 Correct 898 ms 960900 KB Output is correct
35 Correct 931 ms 960980 KB Output is correct
36 Correct 905 ms 960716 KB Output is correct
37 Correct 956 ms 961656 KB Output is correct
38 Correct 937 ms 961076 KB Output is correct
39 Correct 948 ms 961568 KB Output is correct
40 Correct 953 ms 961968 KB Output is correct
41 Correct 898 ms 960288 KB Output is correct
42 Correct 897 ms 961172 KB Output is correct
43 Correct 920 ms 961380 KB Output is correct
44 Correct 939 ms 961580 KB Output is correct
45 Correct 832 ms 959240 KB Output is correct
46 Correct 830 ms 964888 KB Output is correct
47 Correct 843 ms 964868 KB Output is correct
48 Correct 846 ms 964928 KB Output is correct
49 Correct 850 ms 965060 KB Output is correct
50 Correct 840 ms 965000 KB Output is correct
51 Correct 832 ms 965156 KB Output is correct
52 Correct 886 ms 964940 KB Output is correct
53 Correct 835 ms 965096 KB Output is correct
54 Correct 862 ms 964960 KB Output is correct
55 Correct 440 ms 939728 KB Output is correct
56 Correct 410 ms 939616 KB Output is correct
57 Correct 429 ms 939648 KB Output is correct
58 Correct 414 ms 939680 KB Output is correct
59 Correct 431 ms 939564 KB Output is correct
60 Correct 421 ms 939608 KB Output is correct
61 Correct 418 ms 939592 KB Output is correct
62 Correct 420 ms 939588 KB Output is correct
63 Correct 423 ms 939716 KB Output is correct
64 Correct 423 ms 939608 KB Output is correct
65 Correct 413 ms 939648 KB Output is correct
66 Correct 433 ms 939720 KB Output is correct
67 Correct 422 ms 939604 KB Output is correct
68 Correct 415 ms 939572 KB Output is correct
69 Correct 415 ms 939652 KB Output is correct
70 Correct 424 ms 939784 KB Output is correct
71 Correct 428 ms 939588 KB Output is correct
72 Correct 417 ms 939620 KB Output is correct
73 Correct 417 ms 939588 KB Output is correct
74 Correct 418 ms 939592 KB Output is correct
75 Correct 417 ms 939596 KB Output is correct
76 Correct 855 ms 961304 KB Output is correct
77 Correct 854 ms 961268 KB Output is correct
78 Correct 834 ms 960708 KB Output is correct
79 Correct 822 ms 960944 KB Output is correct
80 Correct 836 ms 961560 KB Output is correct
81 Correct 857 ms 960768 KB Output is correct
82 Correct 834 ms 960728 KB Output is correct
83 Correct 837 ms 961356 KB Output is correct
84 Correct 818 ms 961096 KB Output is correct
85 Correct 841 ms 961252 KB Output is correct
86 Correct 830 ms 960664 KB Output is correct
87 Correct 836 ms 960600 KB Output is correct
88 Correct 834 ms 961024 KB Output is correct
89 Correct 820 ms 960928 KB Output is correct
90 Correct 832 ms 960652 KB Output is correct
91 Correct 829 ms 960548 KB Output is correct
92 Correct 950 ms 961740 KB Output is correct
93 Correct 972 ms 960980 KB Output is correct
94 Correct 845 ms 960208 KB Output is correct
95 Correct 832 ms 961568 KB Output is correct
96 Correct 818 ms 960476 KB Output is correct
97 Correct 874 ms 960904 KB Output is correct
98 Correct 837 ms 961092 KB Output is correct
99 Correct 821 ms 960712 KB Output is correct
100 Correct 841 ms 960840 KB Output is correct