CSES - HIIT Open 2018 - Results
Submission details
Task:Buy Low, Sell High
Sender:barely div 2.8 burgeria
Submission time:2018-05-26 11:45:44
Language:C++
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.11 sdetails
#2ACCEPTED0.20 sdetails
#30.19 sdetails
#40.26 sdetails
#50.25 sdetails
#6ACCEPTED0.01 sdetails
#7ACCEPTED0.01 sdetails
#80.01 sdetails
#9ACCEPTED0.10 sdetails

Code

#include <iostream>
#include <vector>
#include <cmath>
#include <string>

using namespace std;

typedef long long LL;

int main(){
	int n; cin>>n;
	vector<int> nums;
	for (int i = 0; i < n; i++) {
		int qwe; cin>>qwe;
		nums.emplace_back(qwe);
	}
	vector<int> left(n);
	vector<int> right(n);
	
	int minv = 1e9;
	int maxv = -1;
	for (int i = 0; i < n; i++) {
		minv = min(nums[i], minv);
		maxv = max(nums[i], maxv);
		left[i] = maxv - minv;
	}

	minv = 1e9;
	maxv = -1;
	for (int i = n-1; i >= 0; i--) {
		minv = min(nums[i], minv);
		maxv = max(nums[i], maxv);
		right[i] = maxv - minv;
	}
	int ans = 0;
	for (int i = 0; i < n; i++) {
		ans = max(ans, left[i] + right[i]);
	}
	cout << ans;
}





Test details

Test 1

Verdict: ACCEPTED

input
500000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
0

user output
0

Test 2

Verdict: ACCEPTED

input
500000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
499999

user output
499999

Test 3

Verdict:

input
500000
500000 499999 499998 499997 49...

correct output
0

user output
499999

Test 4

Verdict:

input
500000
617752857 533265574 365848360 ...

correct output
1999980408

user output
1999991481

Test 5

Verdict:

input
500000
209620375 316066031 756114325 ...

correct output
1999992655

user output
1999994319

Test 6

Verdict: ACCEPTED

input
1
1

correct output
0

user output
0

Test 7

Verdict: ACCEPTED

input
2
1 1

correct output
0

user output
0

Test 8

Verdict:

input
2
2 1

correct output
0

user output
1

Test 9

Verdict: ACCEPTED

input
500000
1 1000000000 2 2 2 2 2 2 2 2 2...

correct output
1999999998

user output
1999999998