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from itertools import permutations
def solve(A,K):
def findDifference(num):
cnt = 0
for i in range(len(num)):
for j in range(i + 1, len(num)):
cnt += abs(num[i] - num[j])
return cnt
ans = list(permutations(A,K))
maxi = float('-inf')
for i in ans:
maxi = max(maxi, findDifference(i))
return maxi
N = int(input())
K = int(input())
A = [int(input()) for _ in range(N)]
print(solve(A,K))
// Dp or not Dp
3 736
#include <bits/stdc++.h>
using namespace std;
void solve(vector<vector<int>> vv, int operation, int xx, int yy, int &res)
{
for (int i = 1; i < 3; i++)
{
int sum1 = 0;
for (int j = 0; j < vv.size(); j++)
{
sum1 += vv[j][i - 1];
}
int sum2 = 0;
for (int j = 0; j < vv.size(); j++)
{
sum2 += vv[j][i];
}
if (sum1 == sum2)
{
res = min(res, operation);
}
return;
}
for (int i = 0; i < vv.size(); i++)
{
solve(vv, operation, xx, yy, res);
vector<int> p1 = vv[i];
reverse(p1.begin(), p1.end());
solve(vv, operation + yy, xx, yy, res);
vector<int> p2 = vv[i];
int temp1 = p2[0];
int temp2 = p2[1];
int temp3 = p2[2];
p2[2] = temp1;
p2[1] = temp3;
p2[0] = temp2;
solve(vv, operation + xx, xx, yy, res);
vector<int> p3 = vv[i];
temp1 = p2[0];
temp2 = p2[1];
temp3 = p2[2];
p2[2] = temp2;
p2[1] = temp1;
p2[0] = temp3;
solve(vv, operation + xx, xx, yy, res);
}
return;
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t = 1;
while (t--)
{
int n = 0, m = 0, a = 0, b = 0, c = 0, d = 0, sum = 0, diff = 0, maxN = 0, minN = 0, count = 0, temp = 0;
bool flag = false;
cin >> n;
cin >> m;
int xx;
cin >> xx;
int yy;
cin >> yy;
vector<vector<int>> vv(n, vector<int>(m));
for (int i = 0; i < n; i++)
{
for (int j = 0; j < m; j++)
{
cin >> vv[i][j];
}
}
if (n == 1)
{
cout << -1 << endl;
continue;
}
int res = INT_MAX;
solve(vv, 0, xx, yy, res);
cout << res << endl;
}
return 0;
}
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