#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("Ofast,unroll-loops")
using namespace std;
using namespace __gnu_pbds;
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define f first
#define s second
#define int long long
#define pii pair<int,int>
template<class T>bool umax(T &a,T b){if(a<b){a=b;return true;}return false;}
template<class T>bool umin(T &a,T b){if(b<a){a=b;return true;}return false;}
template<class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag,
tree_order_statistics_node_update>;
const int inf = 1e17 + 7;
const int mod = 1e9 + 7;
const int N = 3e5 + 5;
int binpow(int a, int b){
if(b == 0)return 1;
if(b % 2 == 0){
int c = binpow(a,b/2);
return (c*c)%mod;
}
return (binpow(a,b-1)*a)%mod;
}
int divi(int a, int b){
return (a*(binpow(b,mod-2)))%mod;
}
int n,m,k;
int dp[305][205][205];
void solve(){
cin >> n;
vector<int>v(n+1);
for(int i = 1;i<=n;i++)
cin >> v[i];
for(int i = 1;i<=300;i++)
for(int j = 0;j<=200;j++)
for(int k = 0;k<=200;k++)
dp[i][j][k] = inf;
for(int i = 0;i<=v[1];i++)
dp[2][v[2]][v[1]-i] = dp[1][v[1]-i][0] = i*3;
for(int i = 2;i<=n;i++){
for(int j = v[i];j>=0;j--)
for(int k = v[i-1];k>=0;k--)
umin(dp[i][j][k], dp[i][j+1][k]+3);
for(int j = v[i];j>=0;j--)
for(int k = v[i-1];k>=0;k--)
umin(dp[i][j][k], dp[i][j+1][k+1]+5);
if(n == i)continue;
for(int j = min({v[i],v[i+1],v[i-1]});j>=0;j--)
for(int k = v[i];k>=j;k--)
umin(dp[i+1][v[i+1]-j][k-j], dp[i][k][j] + j*7);
}
cout << dp[n][0][0] << "\n";
}
signed main()
{
// freopen("seq.in", "r", stdin);
// freopen("seq.out", "w", stdout);
ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
int tt=1;//cin>>tt;
while(tt--)solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
39 ms |
98348 KB |
Output is correct |
2 |
Correct |
33 ms |
98388 KB |
Output is correct |
3 |
Correct |
34 ms |
98236 KB |
Output is correct |
4 |
Correct |
35 ms |
98384 KB |
Output is correct |
5 |
Correct |
50 ms |
98396 KB |
Output is correct |
6 |
Correct |
38 ms |
98388 KB |
Output is correct |
7 |
Correct |
40 ms |
98356 KB |
Output is correct |
8 |
Correct |
38 ms |
98340 KB |
Output is correct |
9 |
Correct |
39 ms |
98196 KB |
Output is correct |
10 |
Correct |
38 ms |
98396 KB |
Output is correct |
11 |
Correct |
47 ms |
98384 KB |
Output is correct |
12 |
Correct |
37 ms |
98188 KB |
Output is correct |
13 |
Correct |
42 ms |
98384 KB |
Output is correct |
14 |
Correct |
46 ms |
98392 KB |
Output is correct |
15 |
Incorrect |
65 ms |
98320 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |