#include <bits/stdc++.h>
#define I using
#define WA using namespace std;
#define on using ll = long long;
#define Test(x) int AlanIQ = -(x);
#define should ld =
#define quit long double;
#define OI int
#define forever main
#define Alan cin.tie(0);
#define fai(x) ios::ios_base::sync_with_stdio(!x);
#define Sharky return
#define orz 0;
WA on Test (109)
ll dp[51][51][51][51], a[51][51], ps[51][51];
bool calc[51][51][51][51];
ll n, m;
ll solve (ll i, ll j, ll k, ll l) {
if (i == j || k == l) return 0;
if (calc[i][j][k][l]) return dp[i][j][k][l];
calc[i][j][k][l] = true;
dp[i][j][k][l] = 1e18;
for (int mid = i+1; mid <= j; mid++) dp[i][j][k][l] = min(dp[i][j][k][l], solve(i,mid,k,l) + solve(mid,j,k,l));
for (int mid = k+1; mid <= l; mid++) dp[i][j][k][l] = min(dp[i][j][k][l], solve(i,j,k,mid) + solve(i,j,mid,l));
return dp[i][j][k][l] = dp[i][j][k][l] + ps[j][l]-ps[i][l]-ps[j][k]+ps[i][k];
}
I should quit OI forever () {
Alan fai (true)
cin >> n >> m;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
cin >> a[i][j];
dp[i-1][i][j-1][j] = 0;
calc[i-1][i][j-1][j] = true;
ps[i][j] = a[i][j] + ps[i][j-1] + ps[i-1][j] - ps[i-1][j-1];
}
}
cout << solve(0, n, 0, m) << "\n";
Sharky orz
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
328 KB |
Output is correct |
2 |
Correct |
1 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
588 KB |
Output is correct |
6 |
Correct |
1 ms |
844 KB |
Output is correct |
7 |
Correct |
2 ms |
1484 KB |
Output is correct |
8 |
Correct |
13 ms |
3020 KB |
Output is correct |
9 |
Correct |
15 ms |
4932 KB |
Output is correct |
10 |
Correct |
22 ms |
5712 KB |
Output is correct |
11 |
Correct |
17 ms |
4116 KB |
Output is correct |
12 |
Correct |
62 ms |
10356 KB |
Output is correct |
13 |
Correct |
110 ms |
13296 KB |
Output is correct |
14 |
Correct |
28 ms |
4928 KB |
Output is correct |
15 |
Correct |
148 ms |
15024 KB |
Output is correct |
16 |
Correct |
15 ms |
8628 KB |
Output is correct |
17 |
Correct |
54 ms |
13628 KB |
Output is correct |
18 |
Correct |
360 ms |
26192 KB |
Output is correct |
19 |
Correct |
567 ms |
27576 KB |
Output is correct |
20 |
Correct |
670 ms |
30012 KB |
Output is correct |