답안 #969925

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
969925	2024-04-25T21:03:06 Z	blackslex	Feast (NOI19_feast)	C++17	21 / 100	1000 ms	262144 KB

feast

#include<bits/stdc++.h>

using namespace std;
using ll = long long;

int n, k;

int main() {
    scanf("%d %d", &n, &k);
    vector<ll> a(n + 5), pref(n + 5);
    vector<vector<ll>> dp(k + 5, vector<ll>(n + 5)), dp2(n + 5, vector<ll>(n + 5, -1e18));
    for (int i = 1; i <= n; i++) scanf("%lld", &a[i]), pref[i] = pref[i - 1] + a[i];
    for (int i = 0; i <= n; i++) {
        dp2[i][i] = pref[i];
        for (int j = i + 1; j <= n; j++) dp2[i][j] = max(dp2[i][j - 1], pref[j]);
    }
    for (int i = 1; i <= k; i++) {
        for (int j = 1; j <= n; j++) {
            for (int l = 0; l <= j; l++) dp[i][j] = max(dp[i][j], dp[i - 1][l] + dp2[l][j] - pref[l]);
        }
    }
    printf("%lld", *max_element(dp[k].begin(), dp[k].end()));
}

Compilation message

feast.cpp: In function 'int main()':
feast.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
feast.cpp:12:39: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     for (int i = 1; i <= n; i++) scanf("%lld", &a[i]), pref[i] = pref[i - 1] + a[i];
      |                                  ~~~~~^~~~~~~~~~~~~~~

Subtask #1

0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	114 ms	262144 KB	Execution killed with signal 9
2	Halted	0 ms	0 KB	-

Subtask #2

0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	88 ms	262144 KB	Execution killed with signal 9
2	Halted	0 ms	0 KB	-

Subtask #3

0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	87 ms	262144 KB	Execution killed with signal 9
2	Halted	0 ms	0 KB	-

Subtask #4

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 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	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct

Subtask #5

11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 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	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	3 ms	1116 KB	Output is correct
12	Correct	3 ms	1116 KB	Output is correct
13	Correct	1 ms	860 KB	Output is correct
14	Correct	3 ms	1116 KB	Output is correct
15	Correct	2 ms	1116 KB	Output is correct
16	Correct	2 ms	856 KB	Output is correct
17	Correct	3 ms	1112 KB	Output is correct
18	Correct	1 ms	860 KB	Output is correct
19	Correct	1 ms	860 KB	Output is correct
20	Correct	1 ms	1116 KB	Output is correct

Subtask #6

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 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	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	3 ms	1116 KB	Output is correct
12	Correct	3 ms	1116 KB	Output is correct
13	Correct	1 ms	860 KB	Output is correct
14	Correct	3 ms	1116 KB	Output is correct
15	Correct	2 ms	1116 KB	Output is correct
16	Correct	2 ms	856 KB	Output is correct
17	Correct	3 ms	1112 KB	Output is correct
18	Correct	1 ms	860 KB	Output is correct
19	Correct	1 ms	860 KB	Output is correct
20	Correct	1 ms	1116 KB	Output is correct
21	Execution timed out	1008 ms	33112 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-

Subtask #7

0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	114 ms	262144 KB	Execution killed with signal 9
2	Halted	0 ms	0 KB	-