Code Submission Evaluation System Login

HIIT Open 2018

Start:2018-05-26 11:00:00
End:2018-05-26 16:00:00
 

Tasks | Messages | Scoreboard | Statistics


CSES - HIIT Open 2018 - Results
History
2018-05-26 14:16:19
2018-05-26 14:00:13
Task:Buy Low, Sell High
Sender:Oispa nutellaa
Submission time:2018-05-26 14:00:13
Language:C++
Status:READY
Result:WRONG ANSWER

Test results

testverdicttime (s)
#1ACCEPTED0.07 / 1.00details
#2ACCEPTED0.08 / 1.00details
#3WRONG ANSWER0.07 / 1.00details
#4WRONG ANSWER0.10 / 1.00details
#5ACCEPTED0.10 / 1.00details
#6ACCEPTED0.01 / 1.00details
#7ACCEPTED0.01 / 1.00details
#8WRONG ANSWER0.02 / 1.00details
#9ACCEPTED0.07 / 1.00details

Code

#include <iostream>

using namespace std;
typedef long long ll;

int n;
ll t[500005];
ll dp[500005];

ll res = 0;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cin >> n;
	for (int i = 0; i < n; ++i) {
		cin >> t[i];
	}
	ll cmi = 1000000005;
	for (int i = 0; i < n; ++i) {
		cmi = min(t[i], cmi);
		dp[i] = t[i]-cmi;
		if (i > 0) dp[i] = max(dp[i], dp[i-1]);
	}
	ll cmx = 0;
	cmi = 1000000005;
	for (int i = n-1; i >= 0; --i) {
		cmx = max(t[i], cmx);
		cmi = min(t[i], cmi);
		res = max(res, dp[i]+(cmx-cmi));
	}
	cout << res << "\n";
	return 0;
}

Test details

Test 1

Verdict: ACCEPTED

input
500000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
view   save

correct output
0
view   save

user output
0
view   save

Test 2

Verdict: ACCEPTED

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

correct output
499999
view   save

user output
499999
view   save

Test 3

Verdict: WRONG ANSWER

input
500000
500000 499999 499998 499997 49...
view   save

correct output
0
view   save

user output
499999
view   save

Test 4

Verdict: WRONG ANSWER

input
500000
617752857 533265574 365848360 ...
view   save

correct output
1999980408
view   save

user output
1999991184
view   save

Test 5

Verdict: ACCEPTED

input
500000
209620375 316066031 756114325 ...
view   save

correct output
1999992655
view   save

user output
1999992655
view   save

Test 6

Verdict: ACCEPTED

input
1
1
view   save

correct output
0
view   save

user output
0
view   save

Test 7

Verdict: ACCEPTED

input
2
1 1
view   save

correct output
0
view   save

user output
0
view   save

Test 8

Verdict: WRONG ANSWER

input
2
2 1
view   save

correct output
0
view   save

user output
1
view   save

Test 9

Verdict: ACCEPTED

input
500000
1 1000000000 2 2 2 2 2 2 2 2 2...
view   save

correct output
1999999998
view   save

user output
1999999998
view   save