oj.uz

Submission #698063

# Submission time Handle Problem Language Result Execution time Memory
698063 2023-02-12T07:41:04 Z myrcella Collecting Stamps 3 (JOI20_ho_t3) C++17
15 / 100
 73 ms 85968 KB 
//by szh
#include<bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl
#define pq priority_queue
#define inf 0x3f
#define rep(i,a,b) for (int i=a;i<(b);i++)
#define MP make_pair
#define SZ(x) (int(x.size()))
#define ll long long
#define mod 1000000007
#define ALL(x) x.begin(),x.end()
void inc(int &a,int b) {a=(a+b)%mod;}
void dec(int &a,int b) {a=(a-b+mod)%mod;}
void MIN(int &a,int b) {
	if (a==-1) a = b;
	else a = min(a,b);
}
int lowbit(int x) {return x&(-x);}
ll p0w(ll base,ll p) {ll ret=1;while(p>0){if (p%2ll==1ll) ret=ret*base%mod;base=base*base%mod;p/=2ll;}return ret;}

const int maxn = 222;
int n,len;
int pos[maxn];
int dp[maxn][maxn][maxn][2];
int t[maxn];
int big;
int ans = 0;

int main() {
//	freopen("input.txt","r",stdin);	
	std::ios::sync_with_stdio(false);cin.tie(0);
	memset(dp,-1,sizeof(dp));
	dp[0][0][0][0] = dp[0][0][0][1] = 0;
	cin>>n>>len;
	pos[0] = 0,pos[n+1] = len;
	rep(i,1,n+1) cin>>pos[i];
	rep(i,1,n+1) cin>>t[i];
	rep(i,0,n+1)
		rep(j,0,n-i+1)
			rep(k,0,i+j+1) {
//				cout<<i<<" "<<j<<" "<<k<<" "<<dp[i][j][k][0]<<" "<<dp[i][j][k][1]<<endl;
				if (dp[i][j][k][0]!=-1) {
					ans = max(ans,k);
					int tn = dp[i][j][k][0] + pos[i+1]-pos[i];
//					debug(tn);
					MIN(dp[i+1][j][k+(tn<=t[i+1])][0],tn);
					tn = dp[i][j][k][0] + pos[i] + len-pos[n-j];
//					debug(tn);
					MIN(dp[i][j+1][k+(tn<=t[n-j])][1],tn);
				}
				if (dp[i][j][k][1]!=-1) {
					ans = max(ans,k);
					int tn = dp[i][j][k][1] + pos[n-j+1] - pos[n-j];
//					debug(tn);
					MIN(dp[i][j+1][k+(tn<=t[n-j])][1],tn);
					tn = dp[i][j][k][1] + len-pos[n-j+1] + pos[i+1];
//					debug(tn);
					MIN(dp[i+1][j][k+(tn<=t[i+1])][0],tn);
				}
			}
	cout<<ans;
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 85840 KB Output is correct
2 Correct 31 ms 85924 KB Output is correct
3 Correct 32 ms 85964 KB Output is correct
4 Correct 32 ms 85904 KB Output is correct
5 Correct 32 ms 85836 KB Output is correct
6 Correct 35 ms 85880 KB Output is correct
7 Correct 32 ms 85880 KB Output is correct
8 Correct 31 ms 85844 KB Output is correct
9 Correct 33 ms 85948 KB Output is correct
10 Correct 37 ms 85928 KB Output is correct
11 Correct 35 ms 85852 KB Output is correct
12 Correct 34 ms 85944 KB Output is correct
13 Correct 40 ms 85840 KB Output is correct
14 Correct 38 ms 85860 KB Output is correct
15 Correct 34 ms 85960 KB Output is correct
16 Correct 33 ms 85932 KB Output is correct
17 Correct 33 ms 85948 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 85840 KB Output is correct
2 Correct 31 ms 85924 KB Output is correct
3 Correct 32 ms 85964 KB Output is correct
4 Correct 32 ms 85904 KB Output is correct
5 Correct 32 ms 85836 KB Output is correct
6 Correct 35 ms 85880 KB Output is correct
7 Correct 32 ms 85880 KB Output is correct
8 Correct 31 ms 85844 KB Output is correct
9 Correct 33 ms 85948 KB Output is correct
10 Correct 37 ms 85928 KB Output is correct
11 Correct 35 ms 85852 KB Output is correct
12 Correct 34 ms 85944 KB Output is correct
13 Correct 40 ms 85840 KB Output is correct
14 Correct 38 ms 85860 KB Output is correct
15 Correct 34 ms 85960 KB Output is correct
16 Correct 33 ms 85932 KB Output is correct
17 Correct 33 ms 85948 KB Output is correct
18 Incorrect 32 ms 85888 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 85840 KB Output is correct
2 Correct 31 ms 85924 KB Output is correct
3 Correct 32 ms 85964 KB Output is correct
4 Correct 32 ms 85904 KB Output is correct
5 Correct 32 ms 85836 KB Output is correct
6 Correct 35 ms 85880 KB Output is correct
7 Correct 32 ms 85880 KB Output is correct
8 Correct 31 ms 85844 KB Output is correct
9 Correct 33 ms 85948 KB Output is correct
10 Correct 37 ms 85928 KB Output is correct
11 Correct 35 ms 85852 KB Output is correct
12 Correct 34 ms 85944 KB Output is correct
13 Correct 40 ms 85840 KB Output is correct
14 Correct 38 ms 85860 KB Output is correct
15 Correct 34 ms 85960 KB Output is correct
16 Correct 33 ms 85932 KB Output is correct
17 Correct 33 ms 85948 KB Output is correct
18 Correct 53 ms 85860 KB Output is correct
19 Correct 44 ms 85868 KB Output is correct
20 Correct 37 ms 85944 KB Output is correct
21 Correct 44 ms 85948 KB Output is correct
22 Correct 51 ms 85856 KB Output is correct
23 Correct 37 ms 85836 KB Output is correct
24 Correct 36 ms 85968 KB Output is correct
25 Correct 37 ms 85848 KB Output is correct
26 Correct 35 ms 85876 KB Output is correct
27 Correct 38 ms 85844 KB Output is correct
28 Correct 34 ms 85836 KB Output is correct
29 Correct 38 ms 85940 KB Output is correct
30 Correct 34 ms 85852 KB Output is correct
31 Correct 36 ms 85844 KB Output is correct
32 Correct 35 ms 85836 KB Output is correct
33 Correct 44 ms 85844 KB Output is correct
34 Correct 35 ms 85924 KB Output is correct
35 Correct 35 ms 85836 KB Output is correct
36 Correct 36 ms 85836 KB Output is correct
37 Correct 34 ms 85964 KB Output is correct
38 Correct 41 ms 85880 KB Output is correct
39 Correct 37 ms 85852 KB Output is correct
40 Correct 34 ms 85900 KB Output is correct
41 Correct 73 ms 85916 KB Output is correct
42 Correct 35 ms 85844 KB Output is correct
43 Correct 68 ms 85956 KB Output is correct
44 Correct 35 ms 85884 KB Output is correct
45 Correct 70 ms 85840 KB Output is correct
46 Correct 36 ms 85932 KB Output is correct

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 85840 KB Output is correct
2 Correct 31 ms 85924 KB Output is correct
3 Correct 32 ms 85964 KB Output is correct
4 Correct 32 ms 85904 KB Output is correct
5 Correct 32 ms 85836 KB Output is correct
6 Correct 35 ms 85880 KB Output is correct
7 Correct 32 ms 85880 KB Output is correct
8 Correct 31 ms 85844 KB Output is correct
9 Correct 33 ms 85948 KB Output is correct
10 Correct 37 ms 85928 KB Output is correct
11 Correct 35 ms 85852 KB Output is correct
12 Correct 34 ms 85944 KB Output is correct
13 Correct 40 ms 85840 KB Output is correct
14 Correct 38 ms 85860 KB Output is correct
15 Correct 34 ms 85960 KB Output is correct
16 Correct 33 ms 85932 KB Output is correct
17 Correct 33 ms 85948 KB Output is correct
18 Incorrect 32 ms 85888 KB Output isn't correct
19 Halted 0 ms 0 KB -