답안 #524071

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
524071	2022-02-08T15:12:17 Z	DanerZein	Discharging (NOI20_discharging)	C++14	100 / 100	385 ms	17932 KB

Discharging

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAX_N=1e6+10;
const ll MAX=1e9;
struct line{
  ll m,b;
  line(ll mm,ll bb){
    m=mm; b=bb;
  }
  ll eval(ll x){
    return m*x+b;
  }
  long double intersect(line l){
    return (long double)(b-l.b)/(l.m-m);
  }
  /* ll intersect(line l){
    ll le=1;
    ll ri=1;
    while(eval(ri)>l.eval(ri)){
      le=ri;
      ri*=2;
    }
    while(ri>le){
      ll mid=(le+ri)/2;
      if(eval(mid)<=l.eval(mid)) ri=mid;
      else le=mid+1;
    }
    return ri;
  }*/
};
ll val[MAX_N];
int main(){
  int n; cin>>n;
  for(int i=1;i<=n;i++){
    cin>>val[i];
    val[i]=max(val[i],val[i-1]);
  }
  deque<line> dq;
  dq.push_front({MAX,MAX});
  ll ans=0;
  for(int i=1;i<=n;i++){
    int t=dq.size();
    line nl={(n-i+1),ans};
    while(t>=2 && nl.intersect(dq[t-2])<=dq[t-1].intersect(dq[t-2])){
      dq.pop_back();
      t--;
    }
    dq.push_back(nl);
    while(dq.size()>=2 && dq[0].eval(val[i])>=dq[1].eval(val[i]))
      dq.pop_front();
    
    ans=dq.front().eval(val[i]);
  }
  cout<<ans<<endl;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	296 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	304 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	304 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	304 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	244 ms	8940 KB	Output is correct
17	Correct	273 ms	9464 KB	Output is correct
18	Correct	224 ms	8644 KB	Output is correct
19	Correct	281 ms	9504 KB	Output is correct
20	Correct	268 ms	9492 KB	Output is correct
21	Correct	281 ms	9572 KB	Output is correct
22	Correct	252 ms	8640 KB	Output is correct
23	Correct	294 ms	8964 KB	Output is correct
24	Correct	265 ms	8656 KB	Output is correct
25	Correct	296 ms	8628 KB	Output is correct
26	Correct	295 ms	8876 KB	Output is correct
27	Correct	242 ms	8744 KB	Output is correct
28	Correct	272 ms	8644 KB	Output is correct
29	Correct	272 ms	8772 KB	Output is correct
30	Correct	280 ms	8692 KB	Output is correct

Subtask #4
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	362 ms	8788 KB	Output is correct
2	Correct	374 ms	17708 KB	Output is correct
3	Correct	378 ms	17744 KB	Output is correct
4	Correct	368 ms	17772 KB	Output is correct
5	Correct	368 ms	17708 KB	Output is correct
6	Correct	370 ms	17672 KB	Output is correct
7	Correct	363 ms	17716 KB	Output is correct
8	Correct	367 ms	17812 KB	Output is correct
9	Correct	365 ms	17828 KB	Output is correct
10	Correct	385 ms	17932 KB	Output is correct

Subtask #5
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	296 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	304 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	304 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	1 ms	300 KB	Output is correct
34	Correct	1 ms	204 KB	Output is correct
35	Correct	1 ms	296 KB	Output is correct
36	Correct	1 ms	204 KB	Output is correct
37	Correct	1 ms	300 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	1 ms	204 KB	Output is correct
40	Correct	1 ms	204 KB	Output is correct
41	Correct	1 ms	308 KB	Output is correct
42	Correct	1 ms	204 KB	Output is correct
43	Correct	1 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	1 ms	204 KB	Output is correct
47	Correct	1 ms	304 KB	Output is correct
48	Correct	1 ms	304 KB	Output is correct
49	Correct	1 ms	304 KB	Output is correct
50	Correct	1 ms	204 KB	Output is correct

Subtask #6
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	296 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	304 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	304 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	244 ms	8940 KB	Output is correct
31	Correct	273 ms	9464 KB	Output is correct
32	Correct	224 ms	8644 KB	Output is correct
33	Correct	281 ms	9504 KB	Output is correct
34	Correct	268 ms	9492 KB	Output is correct
35	Correct	281 ms	9572 KB	Output is correct
36	Correct	252 ms	8640 KB	Output is correct
37	Correct	294 ms	8964 KB	Output is correct
38	Correct	265 ms	8656 KB	Output is correct
39	Correct	296 ms	8628 KB	Output is correct
40	Correct	295 ms	8876 KB	Output is correct
41	Correct	242 ms	8744 KB	Output is correct
42	Correct	272 ms	8644 KB	Output is correct
43	Correct	272 ms	8772 KB	Output is correct
44	Correct	280 ms	8692 KB	Output is correct
45	Correct	362 ms	8788 KB	Output is correct
46	Correct	374 ms	17708 KB	Output is correct
47	Correct	378 ms	17744 KB	Output is correct
48	Correct	368 ms	17772 KB	Output is correct
49	Correct	368 ms	17708 KB	Output is correct
50	Correct	370 ms	17672 KB	Output is correct
51	Correct	363 ms	17716 KB	Output is correct
52	Correct	367 ms	17812 KB	Output is correct
53	Correct	365 ms	17828 KB	Output is correct
54	Correct	385 ms	17932 KB	Output is correct
55	Correct	1 ms	204 KB	Output is correct
56	Correct	1 ms	204 KB	Output is correct
57	Correct	1 ms	204 KB	Output is correct
58	Correct	1 ms	300 KB	Output is correct
59	Correct	1 ms	204 KB	Output is correct
60	Correct	1 ms	296 KB	Output is correct
61	Correct	1 ms	204 KB	Output is correct
62	Correct	1 ms	300 KB	Output is correct
63	Correct	1 ms	332 KB	Output is correct
64	Correct	1 ms	204 KB	Output is correct
65	Correct	1 ms	204 KB	Output is correct
66	Correct	1 ms	308 KB	Output is correct
67	Correct	1 ms	204 KB	Output is correct
68	Correct	1 ms	204 KB	Output is correct
69	Correct	1 ms	204 KB	Output is correct
70	Correct	1 ms	204 KB	Output is correct
71	Correct	1 ms	204 KB	Output is correct
72	Correct	1 ms	304 KB	Output is correct
73	Correct	1 ms	304 KB	Output is correct
74	Correct	1 ms	304 KB	Output is correct
75	Correct	1 ms	204 KB	Output is correct
76	Correct	279 ms	14044 KB	Output is correct
77	Correct	267 ms	14116 KB	Output is correct
78	Correct	253 ms	13472 KB	Output is correct
79	Correct	259 ms	13780 KB	Output is correct
80	Correct	279 ms	14416 KB	Output is correct
81	Correct	248 ms	13576 KB	Output is correct
82	Correct	262 ms	13604 KB	Output is correct
83	Correct	276 ms	13972 KB	Output is correct
84	Correct	267 ms	13816 KB	Output is correct
85	Correct	280 ms	14096 KB	Output is correct
86	Correct	249 ms	13500 KB	Output is correct
87	Correct	246 ms	13448 KB	Output is correct
88	Correct	274 ms	13812 KB	Output is correct
89	Correct	255 ms	13640 KB	Output is correct
90	Correct	255 ms	13544 KB	Output is correct
91	Correct	273 ms	13380 KB	Output is correct
92	Correct	309 ms	14576 KB	Output is correct
93	Correct	269 ms	14016 KB	Output is correct
94	Correct	246 ms	12956 KB	Output is correct
95	Correct	275 ms	14568 KB	Output is correct
96	Correct	242 ms	13280 KB	Output is correct
97	Correct	255 ms	13620 KB	Output is correct
98	Correct	264 ms	13820 KB	Output is correct
99	Correct	251 ms	13616 KB	Output is correct
100	Correct	270 ms	13548 KB	Output is correct

답안 #524071

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 13.0 / 13.0

Subtask #3 25.0 / 25.0

Subtask #4 11.0 / 11.0

Subtask #5 14.0 / 14.0

Subtask #6 28.0 / 28.0

Subtask #1
9.0 / 9.0

Subtask #2
13.0 / 13.0

Subtask #3
25.0 / 25.0

Subtask #4
11.0 / 11.0

Subtask #5
14.0 / 14.0

Subtask #6
28.0 / 28.0