#include <bits/stdc++.h>
//#include<ext/rope>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC target("avx2")
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#define F first
#define S second
#define pb push_back
#define sz(x) int(x.size())
#define el '\n'
#define all(x) x.begin(), x.end()
using namespace std;
//using namespace __gnu_pbds;
//using namespace __gnu_cxx;
typedef long long ll;
typedef long double ld;
typedef short int si;
typedef unsigned long long ull;
//typedef tree <ll, null_type, less <ll> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
const int N = 505;
int n, f[N][N], a[N];
int main()
{
// cerr.precision(7);
// cerr << fixed;
ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);
// in("23.in");
// in("input.txt");
// out("output.txt");
// clock_t start = clock();
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
for (int i = 0; i <= n; i++) {
for (int j = 0; j <= n; j++) {
f[i][j] = -1e9;
}
}
for (int i = 1; i <= n; i++) {
f[1][i] = 0;
}
for (int i = 1; i <= n; i++) {
int sum_now = 0;
for (int j = i; j <= n; j++) {
sum_now += a[j];
int pj = j;
int sum = 0;
int sum_was = 0;
int cnt = -1;
for (int k = j + 1; k <= n; k++) {
if (sum_was == sum && pj >= i) {
cnt++;
}
sum += a[k];
while (pj >= i && sum_was < sum) {
sum_was += a[pj];
pj--;
}
// if (j + 1 == 9 && k == 12) {
// cout << i << " " << j << " " << f[i][j] + cnt << el;
// }
f[j + 1][k] = max(f[j + 1][k], f[i][j] + cnt);
}
}
}
int ans = 0;
for (int i = 1; i <= n; i++) {
ans = max(ans, f[i][n]);
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
320 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
232 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
324 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
320 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
232 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
324 KB |
Output is correct |
10 |
Correct |
1 ms |
460 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
460 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
42 ms |
1228 KB |
Output is correct |
2 |
Correct |
53 ms |
1336 KB |
Output is correct |
3 |
Correct |
50 ms |
1292 KB |
Output is correct |
4 |
Correct |
47 ms |
1288 KB |
Output is correct |
5 |
Correct |
48 ms |
1228 KB |
Output is correct |
6 |
Correct |
99 ms |
1292 KB |
Output is correct |
7 |
Correct |
115 ms |
1292 KB |
Output is correct |
8 |
Correct |
89 ms |
1228 KB |
Output is correct |
9 |
Correct |
108 ms |
1296 KB |
Output is correct |
10 |
Correct |
53 ms |
1228 KB |
Output is correct |
11 |
Correct |
62 ms |
1300 KB |
Output is correct |
12 |
Correct |
54 ms |
1292 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
320 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
232 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
324 KB |
Output is correct |
10 |
Correct |
1 ms |
460 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
460 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
42 ms |
1228 KB |
Output is correct |
22 |
Correct |
53 ms |
1336 KB |
Output is correct |
23 |
Correct |
50 ms |
1292 KB |
Output is correct |
24 |
Correct |
47 ms |
1288 KB |
Output is correct |
25 |
Correct |
48 ms |
1228 KB |
Output is correct |
26 |
Correct |
99 ms |
1292 KB |
Output is correct |
27 |
Correct |
115 ms |
1292 KB |
Output is correct |
28 |
Correct |
89 ms |
1228 KB |
Output is correct |
29 |
Correct |
108 ms |
1296 KB |
Output is correct |
30 |
Correct |
53 ms |
1228 KB |
Output is correct |
31 |
Correct |
62 ms |
1300 KB |
Output is correct |
32 |
Correct |
54 ms |
1292 KB |
Output is correct |
33 |
Correct |
43 ms |
1288 KB |
Output is correct |
34 |
Correct |
45 ms |
1300 KB |
Output is correct |
35 |
Correct |
47 ms |
1336 KB |
Output is correct |
36 |
Correct |
45 ms |
1228 KB |
Output is correct |
37 |
Correct |
89 ms |
1288 KB |
Output is correct |
38 |
Correct |
89 ms |
1228 KB |
Output is correct |
39 |
Correct |
112 ms |
1292 KB |
Output is correct |
40 |
Correct |
98 ms |
1312 KB |
Output is correct |
41 |
Correct |
77 ms |
1304 KB |
Output is correct |
42 |
Correct |
73 ms |
1228 KB |
Output is correct |
43 |
Correct |
73 ms |
1296 KB |
Output is correct |
44 |
Correct |
84 ms |
1228 KB |
Output is correct |
45 |
Correct |
62 ms |
1288 KB |
Output is correct |
46 |
Correct |
68 ms |
1228 KB |
Output is correct |
47 |
Correct |
83 ms |
1296 KB |
Output is correct |
48 |
Correct |
63 ms |
1228 KB |
Output is correct |
49 |
Correct |
63 ms |
1292 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
320 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
232 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
324 KB |
Output is correct |
10 |
Correct |
1 ms |
460 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
460 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
42 ms |
1228 KB |
Output is correct |
22 |
Correct |
53 ms |
1336 KB |
Output is correct |
23 |
Correct |
50 ms |
1292 KB |
Output is correct |
24 |
Correct |
47 ms |
1288 KB |
Output is correct |
25 |
Correct |
48 ms |
1228 KB |
Output is correct |
26 |
Correct |
99 ms |
1292 KB |
Output is correct |
27 |
Correct |
115 ms |
1292 KB |
Output is correct |
28 |
Correct |
89 ms |
1228 KB |
Output is correct |
29 |
Correct |
108 ms |
1296 KB |
Output is correct |
30 |
Correct |
53 ms |
1228 KB |
Output is correct |
31 |
Correct |
62 ms |
1300 KB |
Output is correct |
32 |
Correct |
54 ms |
1292 KB |
Output is correct |
33 |
Correct |
43 ms |
1288 KB |
Output is correct |
34 |
Correct |
45 ms |
1300 KB |
Output is correct |
35 |
Correct |
47 ms |
1336 KB |
Output is correct |
36 |
Correct |
45 ms |
1228 KB |
Output is correct |
37 |
Correct |
89 ms |
1288 KB |
Output is correct |
38 |
Correct |
89 ms |
1228 KB |
Output is correct |
39 |
Correct |
112 ms |
1292 KB |
Output is correct |
40 |
Correct |
98 ms |
1312 KB |
Output is correct |
41 |
Correct |
77 ms |
1304 KB |
Output is correct |
42 |
Correct |
73 ms |
1228 KB |
Output is correct |
43 |
Correct |
73 ms |
1296 KB |
Output is correct |
44 |
Correct |
84 ms |
1228 KB |
Output is correct |
45 |
Correct |
62 ms |
1288 KB |
Output is correct |
46 |
Correct |
68 ms |
1228 KB |
Output is correct |
47 |
Correct |
83 ms |
1296 KB |
Output is correct |
48 |
Correct |
63 ms |
1228 KB |
Output is correct |
49 |
Correct |
63 ms |
1292 KB |
Output is correct |
50 |
Runtime error |
4 ms |
2380 KB |
Execution killed with signal 11 |
51 |
Halted |
0 ms |
0 KB |
- |