#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#pragma GCC optmize("O3")
#pragma GCC optmize("unroll-loops")
#define fi first
#define se second
#define ll long long
#define pb push_back
#define int long long
const int nax=205;
vector<pair<int,int>> objects;
void add(int x , int i)
{
while(x)
{
int msb = 31 - __builtin_clz(x);
if(x == (1<<(msb + 1)) - 1)
{
for(int j = 0 ; j <= msb ; j++)
{
objects.pb({(1<<j) * i, (1<<j)});
}
break;
}
int cur=0;
for(int j = 0 ; j < msb ; j++)
{
cur+=(1<<j);
objects.pb({(1<<j) * i , (1<<j)});
}
x-=cur;
}
}
const int INF = 1e18;
signed main(){
int m , L;
cin>>m>>L;
gp_hash_table<int ,int> dp;
int ans = 0;
int MX=0;
int MN=0;
for(int i = -m ; i <= m ; i++)
{
int x;
cin>>x;
if(i>0) MX+=x*i;
else MN-=x*i;
if(i == 0){
ans=x;
}else add(x , i);
}
MX=max(abs(MN),abs(MX));
MX++;
for(int i = -MX + 1 ; i <= MX - 1; i++)
{
dp[i] = -INF;
}
dp[0] = ans;
sort(objects.begin(),objects.end());
for(auto c : objects){
if(c.fi > 0){
for(int j = MX - 1 ; j >= -MX + 1 ; j--)
{
if(j - c.fi >= -MX + 1)
dp[j] = max(dp[j] , dp[j - c.fi] + c.se);
}
}else
{
for(int j = -MX + 1 ; j <= MX - 1 ; j++)
{
if(j - c.fi <= MX - 1)
{
dp[j] = max(dp[j] , dp[j - c.fi] + c.se);
}
}
}
}
if(L>=MX||L<=-MX) cout <<"impossible"<<endl;
else if(dp[L]<=0) cout <<"impossible"<<endl;
else cout << dp[L]<<endl;
}
Compilation message
vault.cpp:5: warning: ignoring '#pragma GCC optmize' [-Wunknown-pragmas]
5 | #pragma GCC optmize("O3")
|
vault.cpp:6: warning: ignoring '#pragma GCC optmize' [-Wunknown-pragmas]
6 | #pragma GCC optmize("unroll-loops")
|
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
438 ms |
9688 KB |
Output is correct |
6 |
Correct |
418 ms |
9684 KB |
Output is correct |
7 |
Correct |
103 ms |
5072 KB |
Output is correct |
8 |
Correct |
403 ms |
9688 KB |
Output is correct |
9 |
Correct |
1050 ms |
9700 KB |
Output is correct |
10 |
Correct |
3 ms |
1628 KB |
Output is correct |
11 |
Correct |
3 ms |
1056 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
438 ms |
9688 KB |
Output is correct |
6 |
Correct |
418 ms |
9684 KB |
Output is correct |
7 |
Correct |
103 ms |
5072 KB |
Output is correct |
8 |
Correct |
403 ms |
9688 KB |
Output is correct |
9 |
Correct |
1050 ms |
9700 KB |
Output is correct |
10 |
Correct |
3 ms |
1628 KB |
Output is correct |
11 |
Correct |
3 ms |
1056 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
405 ms |
9688 KB |
Output is correct |
17 |
Correct |
429 ms |
9688 KB |
Output is correct |
18 |
Correct |
97 ms |
5072 KB |
Output is correct |
19 |
Correct |
401 ms |
9688 KB |
Output is correct |
20 |
Correct |
1039 ms |
9700 KB |
Output is correct |
21 |
Correct |
3 ms |
1628 KB |
Output is correct |
22 |
Correct |
2 ms |
1056 KB |
Output is correct |
23 |
Execution timed out |
5100 ms |
74452 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Execution timed out |
5091 ms |
348 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Execution timed out |
5091 ms |
348 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Execution timed out |
5091 ms |
348 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
438 ms |
9688 KB |
Output is correct |
6 |
Correct |
418 ms |
9684 KB |
Output is correct |
7 |
Correct |
103 ms |
5072 KB |
Output is correct |
8 |
Correct |
403 ms |
9688 KB |
Output is correct |
9 |
Correct |
1050 ms |
9700 KB |
Output is correct |
10 |
Correct |
3 ms |
1628 KB |
Output is correct |
11 |
Correct |
3 ms |
1056 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Execution timed out |
5091 ms |
348 KB |
Time limit exceeded |
14 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Execution timed out |
5091 ms |
348 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
438 ms |
9688 KB |
Output is correct |
6 |
Correct |
418 ms |
9684 KB |
Output is correct |
7 |
Correct |
103 ms |
5072 KB |
Output is correct |
8 |
Correct |
403 ms |
9688 KB |
Output is correct |
9 |
Correct |
1050 ms |
9700 KB |
Output is correct |
10 |
Correct |
3 ms |
1628 KB |
Output is correct |
11 |
Correct |
3 ms |
1056 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
405 ms |
9688 KB |
Output is correct |
17 |
Correct |
429 ms |
9688 KB |
Output is correct |
18 |
Correct |
97 ms |
5072 KB |
Output is correct |
19 |
Correct |
401 ms |
9688 KB |
Output is correct |
20 |
Correct |
1039 ms |
9700 KB |
Output is correct |
21 |
Correct |
3 ms |
1628 KB |
Output is correct |
22 |
Correct |
2 ms |
1056 KB |
Output is correct |
23 |
Execution timed out |
5100 ms |
74452 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Execution timed out |
5091 ms |
348 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
438 ms |
9688 KB |
Output is correct |
6 |
Correct |
418 ms |
9684 KB |
Output is correct |
7 |
Correct |
103 ms |
5072 KB |
Output is correct |
8 |
Correct |
403 ms |
9688 KB |
Output is correct |
9 |
Correct |
1050 ms |
9700 KB |
Output is correct |
10 |
Correct |
3 ms |
1628 KB |
Output is correct |
11 |
Correct |
3 ms |
1056 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
405 ms |
9688 KB |
Output is correct |
17 |
Correct |
429 ms |
9688 KB |
Output is correct |
18 |
Correct |
97 ms |
5072 KB |
Output is correct |
19 |
Correct |
401 ms |
9688 KB |
Output is correct |
20 |
Correct |
1039 ms |
9700 KB |
Output is correct |
21 |
Correct |
3 ms |
1628 KB |
Output is correct |
22 |
Correct |
2 ms |
1056 KB |
Output is correct |
23 |
Execution timed out |
5100 ms |
74452 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |