CSES - Aalto Competitive Programming 2026 - wk3 - Mon

Submission details
Task:	Maximum sum
Sender:	aalto26cm_027
Submission time:	2026-09-14 17:13:07 +0300
Language:	C++ (C++20)
Status:	READY
Result:	WRONG ANSWER

Test results
test	verdict	time
#1	WRONG ANSWER	0.00 s	details
#2	ACCEPTED	0.00 s	details
#3	WRONG ANSWER	0.00 s	details
#4	WRONG ANSWER	0.00 s	details
#5	WRONG ANSWER	0.00 s	details
#6	WRONG ANSWER	0.04 s	details
#7	ACCEPTED	0.05 s	details
#8	WRONG ANSWER	0.11 s	details
#9	WRONG ANSWER	0.11 s	details
#10	WRONG ANSWER	0.11 s	details
#11	WRONG ANSWER	0.00 s	details
#12	WRONG ANSWER	0.00 s	details
#13	ACCEPTED	0.00 s	details
#14	WRONG ANSWER	0.00 s	details
#15	WRONG ANSWER	0.00 s	details

Code

#include <iostream>
#include <vector>

using namespace std;

int main(){
    int n;
    cin >> n;
    vector<int> arr(n);
    for (int i=0;i<n;i++){
        cin >> arr[i];
    }

    vector<int> dp(n, 0);
    dp[1]=arr[1];
    for (int i=2;i<n-1;i++){
        dp[i]=max(dp[i-3]+arr[i], dp[i-1]);
    }
    cout << dp[n-2] << '\n';
}

Test details

Test 1

Verdict: WRONG ANSWER

input
`10 1 1 1 1 1 1 1 1 1 1` view save

correct output
`10` view save

user output
`3` view save

Feedback: Incorrect character on line 1 col 1: expected "10", got "3"

Test 2

Verdict: ACCEPTED

input
`10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1` view save

correct output
`-1` view save

user output
`-1` view save

Test 3

Verdict: WRONG ANSWER

input
`10 24 7 -27 17 -67 65 -23 58 85 -...` view save

correct output
`185` view save

user output
`157` view save

Feedback: Incorrect character on line 1 col 2: expected "185", got "157"

Test 4

Verdict: WRONG ANSWER

input
`10 99 -59 31 83 -79 64 -20 -87 40...` view save

correct output
`154` view save

user output
`135` view save

Feedback: Incorrect character on line 1 col 2: expected "154", got "135"

Test 5

Verdict: WRONG ANSWER

input
`10 -19 61 60 33 67 19 -8 92 59 -3...` view save

correct output
`383` view save

user output
`220` view save

Feedback: Incorrect character on line 1 col 1: expected "383", got "220"

Test 6

Verdict: WRONG ANSWER

input
`200000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

correct output
`200000` view save

user output
`66666` view save

Feedback: Incorrect character on line 1 col 1: expected "200000", got "66666"

Test 7

Verdict: ACCEPTED

input
`200000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ...` view save

correct output
`-1` view save

user output
`-1` view save

Test 8

Verdict: WRONG ANSWER

input
`200000 381082742 830199996 -85684827 ...` view save

correct output
`231210956017` view save

user output
`2147457620` view save

Feedback: Incorrect character on line 1 col 2: expected "231210956017", got "2147457620"

Test 9

Verdict: WRONG ANSWER

input
`200000 -935928962 -795492223 75287481...` view save

correct output
`184607318819` view save

user output
`2147474053` view save

Feedback: Incorrect character on line 1 col 1: expected "184607318819", got "2147474053"

Test 10

Verdict: WRONG ANSWER

input
`200000 524408131 613017181 -62281009 ...` view save

correct output
`360019999220` view save

user output
`2147463804` view save

Feedback: Incorrect character on line 1 col 1: expected "360019999220", got "2147463804"

Test 11

Verdict: WRONG ANSWER

input
`1 1` view save

correct output
`1` view save

user output
`0` view save

Feedback: Incorrect character on line 1 col 1: expected "1", got "0"

Test 12

Verdict: WRONG ANSWER

input
`1 -2` view save

correct output
`-2` view save

user output
`0` view save

Feedback: Incorrect character on line 1 col 1: expected "-2", got "0"

Test 13

Verdict: ACCEPTED

input
`5 -1 -1 -1 -1 -2` view save

correct output
`-1` view save

user output
`-1` view save

Test 14

Verdict: WRONG ANSWER

input
`2 -3 -2` view save

correct output
`-2` view save

user output
`0` view save

Feedback: Incorrect character on line 1 col 1: expected "-2", got "0"

Test 15

Verdict: WRONG ANSWER

input
`1 -1000000000` view save

correct output
`-1000000000` view save

user output
`0` view save

Feedback: Incorrect character on line 1 col 1: expected "-1000000000", got "0"

Aalto Competitive Programming 2026 - wk3 - Mon

Maximum sum

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Tasks

Submissions (aalto26cm_027)