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Submission #198496

# Submission time Handle Problem Language Result Execution time Memory
198496 2020-01-26T11:57:51 Z alishahali1382 Holding (COCI20_holding) C++14
110 / 110
 337 ms 240388 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O2")
#pragma GCC optimize ("unroll-loops")
//#pragma GCC optimize("no-stack-protector,fast-math")

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<pii, int> piii;
typedef pair<ll, ll> pll;
#define debug(x) cerr<<#x<<'='<<(x)<<endl;
#define debugp(x) cerr<<#x<<"= {"<<(x.first)<<", "<<(x.second)<<"}"<<endl;
#define debug2(x, y) cerr<<"{"<<#x<<", "<<#y<<"} = {"<<(x)<<", "<<(y)<<"}"<<endl;
#define debugv(v) cerr<<#v<<" : ";for (auto x:v) cerr<<x<<' ';cerr<<endl;
#define all(x) x.begin(), x.end()
#define pb push_back
#define upd(x, y) x=min(x, y);

const ld eps=1e-7;
const int inf=1000000010;
const ll INF=10000000000000010LL;
const int mod = 1000000007;
const int MAXN = 105, LOG=20;

int n, m, k, L, R, x, y, t, a, b, ans;
int A[MAXN];
int dp[MAXN][MAXN][MAXN*MAXN>>1];
int dpL[MAXN][MAXN*MAXN>>1];
int dpR[MAXN][MAXN*MAXN>>1];

int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	//freopen("input.txt", "r", stdin);
	//freopen("output.txt", "w", stdout);
	cin>>n>>L>>R>>k;
	for (int i=1; i<=n; i++) cin>>A[i];
	
	k=min(k, n*(n-1)/2);
	
	for (int i=L; i<=R; i++) for (int j=0; j<=k; j++) dp[i][0][j]=inf;
	for (int i=L; i<=R; i++) for (int ii=0; ii<=i; ii++){
		for (int j=0; j<=k; j++){
			dp[i][ii][j]=inf;
			if (ii) upd(dp[i][ii][j], dp[i][ii-1][j]);
			if (j) upd(dp[i][ii][j], dp[i][ii][j-1]);
			if (i-ii<=j && ii) upd(dp[i][ii][j], dp[i-1][ii-1][j-(i-ii)] + A[ii]);
		}
	}
	for (int i=L; i<=R; i++) for (int j=0; j<=k; j++) dpL[i][j]=dp[i][i][j];
	
	memset(dp, 0, sizeof(dp));
	for (int i=L; i<=R; i++) for (int j=0; j<=k; j++) dp[i][n+1][j]=inf;
	for (int i=R; i>=L; i--) for (int ii=n; ii>=i; ii--){
		for (int j=0; j<=k; j++){
			dp[i][ii][j]=inf;
			if (ii<n) upd(dp[i][ii][j], dp[i][ii+1][j]);
			if (j) upd(dp[i][ii][j], dp[i][ii][j-1]);
			if (ii-i<=j && ii<=n) upd(dp[i][ii][j], dp[i+1][ii+1][j-(ii-i)] + A[ii]);
		}
	}
	for (int i=L; i<=R; i++) for (int j=0; j<=k; j++) dpR[i][j]=dp[i][i][j];
	
	for (int i=L; i<=R; i++) ans+=A[i]; // :))
	for (int i=L-1; i<=R; i++) for (int j=0; j<=k; j++) ans=min(ans, dpL[i][j] + dpR[i+1][k-j]);
	cout<<ans<<'\n';
	/*
	debug2(dpL[1][0], dpR[2][3])
	debug(dp[2][3][3])
	debug2(dp[3][4][3-1] , A[3])
	debug(dp[3][5][2])*/
	
	return 0;
}
/*
5 2 3 3
21 54 12 2 0

*/

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 238200 KB Output is correct
2 Correct 127 ms 238196 KB Output is correct
3 Correct 134 ms 238328 KB Output is correct
4 Correct 127 ms 238360 KB Output is correct
5 Correct 133 ms 238304 KB Output is correct
6 Correct 132 ms 238292 KB Output is correct
7 Correct 126 ms 238200 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 238200 KB Output is correct
2 Correct 127 ms 238196 KB Output is correct
3 Correct 134 ms 238328 KB Output is correct
4 Correct 127 ms 238360 KB Output is correct
5 Correct 133 ms 238304 KB Output is correct
6 Correct 132 ms 238292 KB Output is correct
7 Correct 126 ms 238200 KB Output is correct
8 Correct 136 ms 238324 KB Output is correct
9 Correct 132 ms 238328 KB Output is correct
10 Correct 124 ms 238328 KB Output is correct
11 Correct 128 ms 238432 KB Output is correct
12 Correct 126 ms 238584 KB Output is correct
13 Correct 142 ms 238620 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 238200 KB Output is correct
2 Correct 127 ms 238196 KB Output is correct
3 Correct 134 ms 238328 KB Output is correct
4 Correct 127 ms 238360 KB Output is correct
5 Correct 133 ms 238304 KB Output is correct
6 Correct 132 ms 238292 KB Output is correct
7 Correct 126 ms 238200 KB Output is correct
8 Correct 136 ms 238324 KB Output is correct
9 Correct 132 ms 238328 KB Output is correct
10 Correct 124 ms 238328 KB Output is correct
11 Correct 128 ms 238432 KB Output is correct
12 Correct 126 ms 238584 KB Output is correct
13 Correct 142 ms 238620 KB Output is correct
14 Correct 123 ms 238200 KB Output is correct
15 Correct 119 ms 238200 KB Output is correct
16 Correct 123 ms 238232 KB Output is correct
17 Correct 124 ms 238304 KB Output is correct
18 Correct 133 ms 238304 KB Output is correct
19 Correct 149 ms 238712 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 238200 KB Output is correct
2 Correct 127 ms 238196 KB Output is correct
3 Correct 134 ms 238328 KB Output is correct
4 Correct 127 ms 238360 KB Output is correct
5 Correct 133 ms 238304 KB Output is correct
6 Correct 132 ms 238292 KB Output is correct
7 Correct 126 ms 238200 KB Output is correct
8 Correct 136 ms 238324 KB Output is correct
9 Correct 132 ms 238328 KB Output is correct
10 Correct 124 ms 238328 KB Output is correct
11 Correct 128 ms 238432 KB Output is correct
12 Correct 126 ms 238584 KB Output is correct
13 Correct 142 ms 238620 KB Output is correct
14 Correct 123 ms 238200 KB Output is correct
15 Correct 119 ms 238200 KB Output is correct
16 Correct 123 ms 238232 KB Output is correct
17 Correct 124 ms 238304 KB Output is correct
18 Correct 133 ms 238304 KB Output is correct
19 Correct 149 ms 238712 KB Output is correct
20 Correct 129 ms 238328 KB Output is correct
21 Correct 143 ms 238328 KB Output is correct
22 Correct 123 ms 238328 KB Output is correct
23 Correct 132 ms 238196 KB Output is correct
24 Correct 149 ms 238840 KB Output is correct
25 Correct 337 ms 240388 KB Output is correct