oj.uz

Submission #870862

# Submission time Handle Problem Language Result Execution time Memory
870862 2023-11-09T10:25:40 Z pcc Discharging (NOI20_discharging) C++14
100 / 100
 86 ms 25108 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define int ll
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>


const ll mxn = 1e6+10;
vector<pll> v;
ll sum[mxn],dp;
deque<pll> dq;
int n;
ll total = 0;

inline ll calc(pll line,ll val){
	return line.fs*val+line.sc;
}
inline bool out(pll a,pll b,pll c){
	return (a.sc-b.sc)*(c.fs-b.fs)>=(b.sc-c.sc)*(b.fs-a.fs);
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n;
	for(int i = 0;i<n;i++){
		int k;
		cin>>k;
		if(v.empty()||v.back().fs < k)v.push_back({k,1});
		else v.back().sc++;
	}
	dq.push_back(make_pair(0ll,0ll));
	sum[0] = v[0].sc;
	for(int i = 1;i<v.size();i++){
		sum[i] = sum[i-1]+v[i].sc;
	}
	for(int i = 0;i<v.size();i++){
		pll p = v[i];
		while(dq.size()>1&&calc(dq[1],p.fs)<=calc(dq[0],p.fs))dq.pop_front();
		dp = p.fs*n+calc(dq.front(),p.fs);
		pll now = make_pair(-sum[i],dp);
		while(dq.size()>1&&out(dq.end()[-2],dq.end()[-1],now))dq.pop_back();
		dq.push_back(make_pair(-sum[i],dp));
	}
	cout<<dp;
}

Compilation message

Discharging.cpp:27:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   27 | main(){
      | ^~~~
Discharging.cpp: In function 'int main()':
Discharging.cpp:38:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 1;i<v.size();i++){
      |                ~^~~~~~~~~
Discharging.cpp:41:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for(int i = 0;i<v.size();i++){
      |                ~^~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 63 ms 15976 KB Output is correct
17 Correct 68 ms 18356 KB Output is correct
18 Correct 57 ms 13488 KB Output is correct
19 Correct 68 ms 17444 KB Output is correct
20 Correct 70 ms 18624 KB Output is correct
21 Correct 67 ms 17748 KB Output is correct
22 Correct 71 ms 18384 KB Output is correct
23 Correct 76 ms 24740 KB Output is correct
24 Correct 72 ms 23740 KB Output is correct
25 Correct 76 ms 25108 KB Output is correct
26 Correct 81 ms 23832 KB Output is correct
27 Correct 61 ms 16660 KB Output is correct
28 Correct 69 ms 17844 KB Output is correct
29 Correct 75 ms 23692 KB Output is correct
30 Correct 86 ms 24412 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 436 KB Output is correct
2 Correct 69 ms 348 KB Output is correct
3 Correct 69 ms 440 KB Output is correct
4 Correct 69 ms 440 KB Output is correct
5 Correct 69 ms 348 KB Output is correct
6 Correct 69 ms 348 KB Output is correct
7 Correct 69 ms 348 KB Output is correct
8 Correct 68 ms 344 KB Output is correct
9 Correct 68 ms 444 KB Output is correct
10 Correct 77 ms 436 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 472 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 464 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 344 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct

Subtask #6
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 63 ms 15976 KB Output is correct
31 Correct 68 ms 18356 KB Output is correct
32 Correct 57 ms 13488 KB Output is correct
33 Correct 68 ms 17444 KB Output is correct
34 Correct 70 ms 18624 KB Output is correct
35 Correct 67 ms 17748 KB Output is correct
36 Correct 71 ms 18384 KB Output is correct
37 Correct 76 ms 24740 KB Output is correct
38 Correct 72 ms 23740 KB Output is correct
39 Correct 76 ms 25108 KB Output is correct
40 Correct 81 ms 23832 KB Output is correct
41 Correct 61 ms 16660 KB Output is correct
42 Correct 69 ms 17844 KB Output is correct
43 Correct 75 ms 23692 KB Output is correct
44 Correct 86 ms 24412 KB Output is correct
45 Correct 68 ms 436 KB Output is correct
46 Correct 69 ms 348 KB Output is correct
47 Correct 69 ms 440 KB Output is correct
48 Correct 69 ms 440 KB Output is correct
49 Correct 69 ms 348 KB Output is correct
50 Correct 69 ms 348 KB Output is correct
51 Correct 69 ms 348 KB Output is correct
52 Correct 68 ms 344 KB Output is correct
53 Correct 68 ms 444 KB Output is correct
54 Correct 77 ms 436 KB Output is correct
55 Correct 1 ms 348 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 472 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 0 ms 348 KB Output is correct
68 Correct 0 ms 348 KB Output is correct
69 Correct 0 ms 464 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 0 ms 344 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 60 ms 6332 KB Output is correct
77 Correct 59 ms 6448 KB Output is correct
78 Correct 59 ms 5716 KB Output is correct
79 Correct 56 ms 5968 KB Output is correct
80 Correct 60 ms 6736 KB Output is correct
81 Correct 56 ms 5968 KB Output is correct
82 Correct 55 ms 5712 KB Output is correct
83 Correct 58 ms 6480 KB Output is correct
84 Correct 63 ms 6228 KB Output is correct
85 Correct 59 ms 6324 KB Output is correct
86 Correct 55 ms 5716 KB Output is correct
87 Correct 59 ms 5716 KB Output is correct
88 Correct 57 ms 5968 KB Output is correct
89 Correct 57 ms 5972 KB Output is correct
90 Correct 60 ms 5928 KB Output is correct
91 Correct 64 ms 5460 KB Output is correct
92 Correct 75 ms 19388 KB Output is correct
93 Correct 68 ms 17592 KB Output is correct
94 Correct 54 ms 5292 KB Output is correct
95 Correct 66 ms 6740 KB Output is correct
96 Correct 54 ms 5552 KB Output is correct
97 Correct 55 ms 5968 KB Output is correct
98 Correct 57 ms 6064 KB Output is correct
99 Correct 58 ms 5808 KB Output is correct
100 Correct 63 ms 6200 KB Output is correct