oj.uz

Submission #888038

# Submission time Handle Problem Language Result Execution time Memory
888038 2023-12-15T19:49:51 Z amirhoseinfar1385 Collecting Stamps 3 (JOI20_ho_t3) C++17
15 / 100
 138 ms 294480 KB 
#include<bits/stdc++.h>
using namespace std;
const long long maxn=210,inf=1e15+10;
pair<long long,long long>dp[maxn][maxn][maxn];
long long n,allx[maxn],allt[maxn],L;

long long fas(long long a,long long b){
	long long ret=a-b;
	ret+=L;
	ret%=L;
	//cout<<a<<" "<<b<<" "<<ret<<" wtf"<<endl;
	return ret;
}

void upddp(long long l,long long r){
	//cout<<l<<" "<<r<<" "<<dp[l][r][0].first<<" "<<dp[l][r][0].second<<"\n";
	long long ll=(l-1)+n,rr=r+1;
	ll%=n;
	rr%=n;
	for(long long i=0;i<maxn;i++){
		if(dp[l][r][i].first!=inf){
			//cout<<l<<" "<<r<<" "<<i<<" "<<dp[l][r][i].first<<" "<<dp[l][r][i].second<<'\n';
			dp[ll][r][i].first=min(dp[ll][r][i].first,dp[l][r][i].first+fas(allx[l],allx[ll]));
			dp[ll][r][i].second=min(dp[ll][r][i].second,dp[ll][r][i].first+fas(allx[r],allx[ll]));
			if(fas(allx[l],allx[ll])+dp[l][r][i].first<=allt[ll]){
				dp[ll][r][i+1].first=min(dp[ll][r][i+1].first,dp[l][r][i].first+fas(allx[l],allx[ll]));
				dp[ll][r][i+1].second=min(dp[ll][r][i+1].second,dp[ll][r][i].first+fas(allx[r],allx[ll]));
			}
			dp[l][rr][i].second=min(dp[l][rr][i].second,dp[l][r][i].second+fas(allx[rr],allx[r]));
			dp[l][rr][i].first=min(dp[l][rr][i].first,dp[l][rr][i].second+fas(allx[rr],allx[l]));
			if(fas(allx[rr],allx[r])+dp[l][r][i].second<=allt[rr]){
				dp[l][rr][i+1].second=min(dp[l][rr][i].second,dp[l][r][i].second+fas(allx[rr],allx[r]));
				dp[l][rr][i+1].first=min(dp[l][rr][i+1].first,dp[l][rr][i+1].second+fas(allx[rr],allx[l]));
			}
		}
	}
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	for(long long i=0;i<maxn;i++){
		for(long long j=0;j<maxn;j++){
			for(long long h=0;h<maxn;h++){
				dp[i][j][h]=make_pair(inf,inf);
			}
		}
	}
	cin>>n>>L;
	if(n>=150){
		assert(0);
	}
	for(long long i=0;i<n;i++){
		cin>>allx[i];
	}
	for(long long i=0;i<n;i++){
		cin>>allt[i];
	}
	if(n==1){
		if(min(allx[0],fas(0,allx[0]))<=allt[0]){
			cout<<1<<endl;
			return 0;
		}
		cout<<0<<endl;
		return 0;
	}
	if(allx[0]<=allt[0]){
		dp[0][0][0]=dp[0][0][1]=make_pair(allx[0],allx[0]);
	}
	else{
		dp[0][0][0]=make_pair(allx[0],allx[0]);
	}
	if(fas(0,allx[n-1])<=allt[n-1]){
		dp[n-1][n-1][0]=dp[n-1][n-1][1]=make_pair(fas(0,allx[n-1]),fas(0,allx[n-1]));
	}
	else{
		dp[n-1][n-1][0]=make_pair(fas(0,allx[n-1]),fas(0,allx[n-1]));
	}
	for(long long i=0;i<n-1;i++){
		upddp(0,0+i);
		for(long long l=n-1;l>=n-i-1;l--){
			upddp(l,(l+i)%n);
		}
	}
	long long res=0;
	for(long long i=0;i<n;i++){
		int j=i-1+n;
		j%=n;
			for(long long h=0;h<=n;h++){
				if(dp[i][j][h].first!=inf){
					res=max(res,h);
				}
			}
	}
	cout<<res<<"\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 145240 KB Output is correct
2 Correct 22 ms 145496 KB Output is correct
3 Correct 20 ms 145244 KB Output is correct
4 Correct 21 ms 145244 KB Output is correct
5 Correct 20 ms 145236 KB Output is correct
6 Correct 20 ms 145244 KB Output is correct
7 Correct 20 ms 145244 KB Output is correct
8 Correct 20 ms 145244 KB Output is correct
9 Correct 21 ms 145236 KB Output is correct
10 Correct 20 ms 145244 KB Output is correct
11 Correct 20 ms 145244 KB Output is correct
12 Correct 22 ms 145416 KB Output is correct
13 Correct 20 ms 145252 KB Output is correct
14 Correct 20 ms 145200 KB Output is correct
15 Correct 20 ms 145240 KB Output is correct
16 Correct 20 ms 145244 KB Output is correct
17 Correct 21 ms 145324 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 145240 KB Output is correct
2 Correct 22 ms 145496 KB Output is correct
3 Correct 20 ms 145244 KB Output is correct
4 Correct 21 ms 145244 KB Output is correct
5 Correct 20 ms 145236 KB Output is correct
6 Correct 20 ms 145244 KB Output is correct
7 Correct 20 ms 145244 KB Output is correct
8 Correct 20 ms 145244 KB Output is correct
9 Correct 21 ms 145236 KB Output is correct
10 Correct 20 ms 145244 KB Output is correct
11 Correct 20 ms 145244 KB Output is correct
12 Correct 22 ms 145416 KB Output is correct
13 Correct 20 ms 145252 KB Output is correct
14 Correct 20 ms 145200 KB Output is correct
15 Correct 20 ms 145240 KB Output is correct
16 Correct 20 ms 145244 KB Output is correct
17 Correct 21 ms 145324 KB Output is correct
18 Correct 21 ms 145236 KB Output is correct
19 Correct 21 ms 145292 KB Output is correct
20 Correct 21 ms 145244 KB Output is correct
21 Correct 21 ms 145244 KB Output is correct
22 Correct 21 ms 145236 KB Output is correct
23 Correct 21 ms 145240 KB Output is correct
24 Correct 20 ms 145232 KB Output is correct
25 Correct 20 ms 145244 KB Output is correct
26 Correct 20 ms 145244 KB Output is correct
27 Correct 21 ms 145232 KB Output is correct
28 Correct 20 ms 145244 KB Output is correct
29 Correct 20 ms 145244 KB Output is correct
30 Correct 20 ms 145244 KB Output is correct
31 Correct 20 ms 145200 KB Output is correct
32 Correct 21 ms 145244 KB Output is correct
33 Correct 21 ms 145436 KB Output is correct
34 Correct 20 ms 145236 KB Output is correct
35 Correct 21 ms 145244 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 145240 KB Output is correct
2 Correct 22 ms 145496 KB Output is correct
3 Correct 20 ms 145244 KB Output is correct
4 Correct 21 ms 145244 KB Output is correct
5 Correct 20 ms 145236 KB Output is correct
6 Correct 20 ms 145244 KB Output is correct
7 Correct 20 ms 145244 KB Output is correct
8 Correct 20 ms 145244 KB Output is correct
9 Correct 21 ms 145236 KB Output is correct
10 Correct 20 ms 145244 KB Output is correct
11 Correct 20 ms 145244 KB Output is correct
12 Correct 22 ms 145416 KB Output is correct
13 Correct 20 ms 145252 KB Output is correct
14 Correct 20 ms 145200 KB Output is correct
15 Correct 20 ms 145240 KB Output is correct
16 Correct 20 ms 145244 KB Output is correct
17 Correct 21 ms 145324 KB Output is correct
18 Runtime error 138 ms 294480 KB Execution killed with signal 6
19 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 145240 KB Output is correct
2 Correct 22 ms 145496 KB Output is correct
3 Correct 20 ms 145244 KB Output is correct
4 Correct 21 ms 145244 KB Output is correct
5 Correct 20 ms 145236 KB Output is correct
6 Correct 20 ms 145244 KB Output is correct
7 Correct 20 ms 145244 KB Output is correct
8 Correct 20 ms 145244 KB Output is correct
9 Correct 21 ms 145236 KB Output is correct
10 Correct 20 ms 145244 KB Output is correct
11 Correct 20 ms 145244 KB Output is correct
12 Correct 22 ms 145416 KB Output is correct
13 Correct 20 ms 145252 KB Output is correct
14 Correct 20 ms 145200 KB Output is correct
15 Correct 20 ms 145240 KB Output is correct
16 Correct 20 ms 145244 KB Output is correct
17 Correct 21 ms 145324 KB Output is correct
18 Correct 21 ms 145236 KB Output is correct
19 Correct 21 ms 145292 KB Output is correct
20 Correct 21 ms 145244 KB Output is correct
21 Correct 21 ms 145244 KB Output is correct
22 Correct 21 ms 145236 KB Output is correct
23 Correct 21 ms 145240 KB Output is correct
24 Correct 20 ms 145232 KB Output is correct
25 Correct 20 ms 145244 KB Output is correct
26 Correct 20 ms 145244 KB Output is correct
27 Correct 21 ms 145232 KB Output is correct
28 Correct 20 ms 145244 KB Output is correct
29 Correct 20 ms 145244 KB Output is correct
30 Correct 20 ms 145244 KB Output is correct
31 Correct 20 ms 145200 KB Output is correct
32 Correct 21 ms 145244 KB Output is correct
33 Correct 21 ms 145436 KB Output is correct
34 Correct 20 ms 145236 KB Output is correct
35 Correct 21 ms 145244 KB Output is correct
36 Runtime error 138 ms 294480 KB Execution killed with signal 6
37 Halted 0 ms 0 KB -