#include <bits/stdc++.h>
using namespace std;
#define IOS ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
#define pb push_back
#define all(a) a.begin(),a.end()
typedef long long ll ;
const int maxn =1e6 + 10;
const int mod = 1e9 + 7 ;
const int maxq = 3000+10;
ll dp[110][110][110];
ll d[maxn];
ll pre[maxn];
int main()
{
ll n , a , b ;
cin >> n >> a >> b ;
for(int i = 1; i <= n ; i++){
cin >> d[i];
}
for(int i = 1 ; i<= n ; i++){
pre[i] = pre[i-1] + d[i] ;
}
for(int i = 1 ; i <= b ; i++){
for(int l = 1 ; l <= n ; l++){
for(int r = l ; r <= n ; r++){
dp[i][l][r] = 1e18;
}
}
}
for(int i =1 ; i <= n ; i++){
for(int j = i ; j <= n ; j++){
dp[1][i][j] = pre[j] - pre[i-1] ;
}
}
for(int x = 2 ; x <= b ; x++){
for(int l = 1 ; l <= n ; l++){
for(int r = l ; r <= n ; r++){
for(int s = 0 ; s < x ; s++){
if(x==1 && !(l==1 && r==n))continue ;
if(x==2 && !(l==1 || r==n))continue ;
if(((l-1)+(n-r)) < (x-1))continue ;
if((l-1) < (s) || (n-r) < (x-1-s))continue ;
if(s==0 && l!=1)continue ;
if(x-1-s == 0 && r!=n)continue ;
if(l==1 && r==n){
dp[x][l][r] = pre[n] ;
continue;
}
if(l==1){
dp[x][l][r] = min(dp[x][l][r] , pre[r] | dp[x-1][r+1][n]);
continue ;
}
if(r==n){
dp[x][l][r] = min(dp[x][l][r] , (pre[r] - pre[l-1]) | dp[x-1][1][r-1]);
continue ;
}
dp[x][l][r] = min(dp[x][l][r] , dp[s][1][l-1] | (pre[r] - pre[l-1]) | dp[x-1-s][r+1][n]);
}
}
}
}
ll answer = 1e18 ;
for(int x = a ; x <= b ; x++){
for(int l = 1 ; l <= n ; l++){
for(int r = l ; r <= n ; r++){
if(x==1 && !(l==1 && r==n))continue ;
if(x==2 && !(l==1 || r==n))continue ;
answer = min(answer,dp[x][l][r]) ;
}
}
}
cout << answer << "\n" ;
return 0;
}
/*
6 1 3
8 1 2 1 5 4
3 1 3
1 7 3
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Incorrect |
1 ms |
460 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Incorrect |
1 ms |
460 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Incorrect |
1 ms |
460 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Incorrect |
1 ms |
460 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
232 KB |
Output is correct |
6 |
Incorrect |
1 ms |
460 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |