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Submission #953848

# Submission time Handle Problem Language Result Execution time Memory
953848 2024-03-26T18:01:03 Z PM1 Uplifting Excursion (BOI22_vault) C++17
50 / 100
 667 ms 3424 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fr first
#define sc second
const ll mxn=305;
ll m,a[mxn*2],l,sum,ans,num;
vector<pair<ll,ll>>v;
ll dp[2][mxn*mxn*2];
void add(ll tedad,ll x,ll z){
	tedad=(min(tedad,m));
	for(ll i=1;i<=tedad;i*=2){
		v.push_back({i*x,z*i});
		tedad-=i;
	}
	if(tedad>0)
		v.push_back({tedad*x,z*tedad});
}
void solve(){
	for(ll i=m;i<2*m+1;i++){
		ans+=a[i];
		num+=a[i]*(i-m);
		add(a[i],-(i-m),-1);
	}
	ll i=m-1;
	for(;i>=0;i--){
		if(num<l)break;
		if(num+a[i]*(i-m)>=l){
			ans+=a[i];
			num+=a[i]*(i-m);
			add(a[i],-(i-m),-1);
			continue;
		}
		ll x=l-num;
		x=x/(i-m);
		x=min(x,a[i]);
		num+=a[i]*x;
		ans+=x;
		add(x,-(i-m),-1);
		add(a[i]-x,i-m,1);
		i--;
		break;
	}
	for(;i>=0;i--){
		add(a[i],(i-m),1);
	}
}
void solve1(){
	for(ll i=m;i>=0;i--){
		ans+=a[i];
		num+=a[i]*(i-m);
		add(a[i],-(i-m),-1);
	}
	ll i=m+1;
	for(;i<m*2+1;i++){
		if(num>l)break;
		if(num+a[i]*(i-m)<=l){
			ans+=a[i];
			num+=a[i]*(i-m);
			add(a[i],-(i-m),-1);
			continue;
		}
		ll x=l-num;
		x=x/(i-m);
		x=min(x,a[i]);
		num+=(i-m)*x;
		ans+=x;
		add(x,-(i-m),-1);
		add(a[i]-x,i-m,1);
		i++;
		break;
	}
	for(;i<m*2+1;i++){
		add(a[i],(i-m),1);
	}
}
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>m>>l;

	for(ll i=0;i<m*2+1;i++){
		cin>>a[i];
		sum+=(i-m)*a[i];
	}
	if(sum<=l)
		solve();
	else
		solve1();

	for(ll i=0;i<=2*m*m;i++)dp[1][i]=-1e18;
	for(ll i=0;i<=2*m*m;i++)dp[0][i]=-1e18;
	dp[1][m*m]=0;
	for(ll i=0;i<v.size();i++){
		ll x=v[i].fr,y=v[i].sc;
		ll z=i&1;
		for(ll j=0;j<=2*m*m;j++){
			if(j-x>=0 && j-x<=2*m*m && dp[z^1][j-x]!=-1e18)
				dp[z][j]=max(dp[z^1][j],dp[z^1][j-x]+y);
			else
				dp[z][j]=dp[z^1][j];
		}
	}
	ll x=v.size()&1;
	x^=1;
	l-=num;
	if( l>m*m || l<-m*m ||dp[x][l+m*m]==-1e18 || ans+dp[x][l+m*m]<0){
		cout<<"impossible";
		return 0;
	}
	cout<<ans+dp[x][l+m*m];
	return 0;
}

Compilation message

vault.cpp: In function 'int main()':
vault.cpp:95:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |  for(ll i=0;i<v.size();i++){
      |             ~^~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2256 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Incorrect 4 ms 2396 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2256 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Incorrect 4 ms 2396 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2524 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 2 ms 2676 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct

Subtask #3-2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2524 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 2 ms 2676 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2516 KB Output is correct
21 Correct 1 ms 2516 KB Output is correct
22 Correct 1 ms 2512 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 2 ms 2392 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 2 ms 2512 KB Output is correct
27 Correct 1 ms 2384 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct

Subtask #4-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2524 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 2 ms 2676 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 3 ms 2576 KB Output is correct
26 Correct 3 ms 2396 KB Output is correct
27 Correct 2 ms 2396 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2256 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Incorrect 4 ms 2396 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #5-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2524 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 2 ms 2676 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 3 ms 2576 KB Output is correct
26 Correct 3 ms 2396 KB Output is correct
27 Correct 2 ms 2396 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2516 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2392 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 3 ms 2392 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 2 ms 2396 KB Output is correct
44 Correct 3 ms 2396 KB Output is correct
45 Correct 3 ms 2396 KB Output is correct
46 Correct 2 ms 2568 KB Output is correct
47 Correct 1 ms 2652 KB Output is correct
48 Correct 1 ms 2652 KB Output is correct
49 Correct 17 ms 2652 KB Output is correct
50 Correct 8 ms 2520 KB Output is correct
51 Correct 17 ms 2652 KB Output is correct
52 Correct 24 ms 2684 KB Output is correct
53 Correct 18 ms 2648 KB Output is correct
54 Correct 15 ms 2652 KB Output is correct

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2256 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Incorrect 4 ms 2396 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #6-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2524 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 2 ms 2676 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 3 ms 2576 KB Output is correct
26 Correct 3 ms 2396 KB Output is correct
27 Correct 2 ms 2396 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2516 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2392 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 3 ms 2392 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 2 ms 2396 KB Output is correct
44 Correct 3 ms 2396 KB Output is correct
45 Correct 3 ms 2396 KB Output is correct
46 Correct 2 ms 2568 KB Output is correct
47 Correct 1 ms 2652 KB Output is correct
48 Correct 1 ms 2652 KB Output is correct
49 Correct 17 ms 2652 KB Output is correct
50 Correct 8 ms 2520 KB Output is correct
51 Correct 17 ms 2652 KB Output is correct
52 Correct 24 ms 2684 KB Output is correct
53 Correct 18 ms 2648 KB Output is correct
54 Correct 15 ms 2652 KB Output is correct
55 Correct 1 ms 2392 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2512 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 2512 KB Output is correct
61 Correct 1 ms 2392 KB Output is correct
62 Correct 1 ms 2396 KB Output is correct
63 Correct 1 ms 2396 KB Output is correct
64 Correct 1 ms 2396 KB Output is correct
65 Correct 1 ms 2396 KB Output is correct
66 Correct 1 ms 2400 KB Output is correct
67 Correct 2 ms 2396 KB Output is correct
68 Correct 2 ms 2396 KB Output is correct
69 Correct 2 ms 2400 KB Output is correct
70 Correct 3 ms 2396 KB Output is correct
71 Correct 2 ms 2572 KB Output is correct
72 Correct 2 ms 2396 KB Output is correct
73 Correct 1 ms 2652 KB Output is correct
74 Correct 1 ms 2652 KB Output is correct
75 Correct 16 ms 2652 KB Output is correct
76 Correct 8 ms 2652 KB Output is correct
77 Correct 18 ms 2652 KB Output is correct
78 Correct 19 ms 2652 KB Output is correct
79 Correct 16 ms 2656 KB Output is correct
80 Correct 13 ms 2704 KB Output is correct
81 Correct 594 ms 3420 KB Output is correct
82 Correct 249 ms 3360 KB Output is correct
83 Correct 545 ms 3420 KB Output is correct
84 Correct 667 ms 3424 KB Output is correct
85 Correct 9 ms 3168 KB Output is correct
86 Correct 9 ms 3168 KB Output is correct
87 Correct 481 ms 3424 KB Output is correct

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2256 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Incorrect 4 ms 2396 KB Output isn't correct
7 Halted 0 ms 0 KB -