oj.uz

Submission #959261

# Submission time Handle Problem Language Result Execution time Memory
959261 2024-04-07T18:35:52 Z AndreiBOTO Collecting Stamps 3 (JOI20_ho_t3) C++14
100 / 100
 117 ms 246096 KB 
#include <bits/stdc++.h>

#pragma optimize GCC ("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

///#include <tryhardmode>
///#include <GODMODE::ON>

using namespace std;

///What a day...
///You look lonely, I can fix that

const long long INF=1e18;
const int NMAX=305;

#define int long long

int dp[NMAX][NMAX][NMAX][2];        ///minimum time -> clock, counter-clock, answer, direction (0->clock, 1->counter-clock)
int x[NMAX];
int t[NMAX];
int l;

int get_dist(int a,int b)
{
    ///I got guns in my head and they won't go,
    ///Spirits in my head and they won't go...

    if(a>b)
        swap(a,b);
    return min(x[b]-x[a],l-x[b]+x[a]);
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    int n,i,j,k,st,dr,ans,best=0;
    cin>>n>>l;
    for(i=1;i<=n;i++)
        cin>>x[i];
    x[n+1]=l;
    for(i=1;i<=n;i++)
        cin>>t[i];
    for(i=0;i<=n+1;i++)
        for(j=0;j<=n+1;j++)
            for(k=0;k<=n+1;k++)
                dp[i][j][k][0]=dp[i][j][k][1]=INF;
    dp[0][0][0][0]=dp[0][0][0][1]=0;
    for(st=0;st<=n;st++)
    {
        for(dr=0;dr<=n;dr++)
        {
            if(st+dr>n)
                break;
            for(ans=0;ans<=n;ans++)
            {
                if(min(dp[st][dr][ans][0],dp[st][dr][ans][1])!=INF)
                    best=max(best,ans);
                else
                    continue;
                if(st+1<=n)
                {
                    long long auxy=dp[st][dr][ans][1]+get_dist(n+1-dr,st+1);
                    auxy=min(auxy,dp[st][dr][ans][0]+get_dist(st,st+1));
                    if(auxy<=t[st+1])
                        dp[st+1][dr][ans+1][0]=min(dp[st+1][dr][ans+1][0],auxy);
                    else
                        dp[st+1][dr][ans][0]=min(dp[st+1][dr][ans][0],auxy);
                }
                if(dr+1<=n)
                {
                    if(n+1-dr-1==0 || n+1-dr-1==n+1)
                        continue;
                    long long auxy=dp[st][dr][ans][1]+get_dist(n+1-dr,n+1-dr-1);
                    auxy=min(auxy,dp[st][dr][ans][0]+get_dist(st,n+1-dr-1));
                    if(auxy<=t[n+1-dr-1])
                        dp[st][dr+1][ans+1][1]=min(dp[st][dr+1][ans+1][1],auxy);
                    else
                        dp[st][dr+1][ans][1]=min(dp[st][dr+1][ans][1],auxy);
                }
            }
        }
    }
    cout<<best<<"\n";
    return 0;
}

Compilation message

ho_t3.cpp:3: warning: ignoring '#pragma optimize GCC' [-Wunknown-pragmas]
    3 | #pragma optimize GCC ("Ofast")
      |

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10588 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 2 ms 14684 KB Output is correct
8 Correct 3 ms 16732 KB Output is correct
9 Correct 3 ms 20828 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 2 ms 20828 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 3 ms 20828 KB Output is correct
17 Correct 3 ms 20828 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10588 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 2 ms 14684 KB Output is correct
8 Correct 3 ms 16732 KB Output is correct
9 Correct 3 ms 20828 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 2 ms 20828 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 3 ms 20828 KB Output is correct
17 Correct 3 ms 20828 KB Output is correct
18 Correct 3 ms 22876 KB Output is correct
19 Correct 2 ms 16904 KB Output is correct
20 Correct 3 ms 20828 KB Output is correct
21 Correct 3 ms 22876 KB Output is correct
22 Correct 2 ms 16984 KB Output is correct
23 Correct 3 ms 24924 KB Output is correct
24 Correct 3 ms 20828 KB Output is correct
25 Correct 4 ms 23092 KB Output is correct
26 Correct 3 ms 22876 KB Output is correct
27 Correct 2 ms 14684 KB Output is correct
28 Correct 2 ms 16732 KB Output is correct
29 Correct 4 ms 24920 KB Output is correct
30 Correct 4 ms 24924 KB Output is correct
31 Correct 6 ms 22876 KB Output is correct
32 Correct 3 ms 20828 KB Output is correct
33 Correct 3 ms 24920 KB Output is correct
34 Correct 3 ms 24924 KB Output is correct
35 Correct 3 ms 24924 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10588 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 2 ms 14684 KB Output is correct
8 Correct 3 ms 16732 KB Output is correct
9 Correct 3 ms 20828 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 2 ms 20828 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 3 ms 20828 KB Output is correct
17 Correct 3 ms 20828 KB Output is correct
18 Correct 117 ms 217912 KB Output is correct
19 Correct 36 ms 174680 KB Output is correct
20 Correct 20 ms 148824 KB Output is correct
21 Correct 32 ms 171284 KB Output is correct
22 Correct 43 ms 188568 KB Output is correct
23 Correct 18 ms 138064 KB Output is correct
24 Correct 15 ms 123740 KB Output is correct
25 Correct 18 ms 138076 KB Output is correct
26 Correct 10 ms 84572 KB Output is correct
27 Correct 20 ms 140092 KB Output is correct
28 Correct 15 ms 117600 KB Output is correct
29 Correct 19 ms 142220 KB Output is correct
30 Correct 16 ms 125788 KB Output is correct
31 Correct 21 ms 138260 KB Output is correct
32 Correct 12 ms 98904 KB Output is correct
33 Correct 18 ms 138072 KB Output is correct
34 Correct 10 ms 82524 KB Output is correct
35 Correct 17 ms 136024 KB Output is correct
36 Correct 12 ms 92760 KB Output is correct
37 Correct 18 ms 140120 KB Output is correct
38 Correct 13 ms 103004 KB Output is correct
39 Correct 19 ms 142172 KB Output is correct
40 Correct 13 ms 109284 KB Output is correct
41 Correct 75 ms 243732 KB Output is correct
42 Correct 43 ms 198160 KB Output is correct
43 Correct 76 ms 243796 KB Output is correct
44 Correct 42 ms 198224 KB Output is correct
45 Correct 73 ms 243768 KB Output is correct
46 Correct 43 ms 197972 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10588 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 2 ms 14684 KB Output is correct
8 Correct 3 ms 16732 KB Output is correct
9 Correct 3 ms 20828 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 4 ms 20828 KB Output is correct
13 Correct 2 ms 20828 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 3 ms 20828 KB Output is correct
17 Correct 3 ms 20828 KB Output is correct
18 Correct 3 ms 22876 KB Output is correct
19 Correct 2 ms 16904 KB Output is correct
20 Correct 3 ms 20828 KB Output is correct
21 Correct 3 ms 22876 KB Output is correct
22 Correct 2 ms 16984 KB Output is correct
23 Correct 3 ms 24924 KB Output is correct
24 Correct 3 ms 20828 KB Output is correct
25 Correct 4 ms 23092 KB Output is correct
26 Correct 3 ms 22876 KB Output is correct
27 Correct 2 ms 14684 KB Output is correct
28 Correct 2 ms 16732 KB Output is correct
29 Correct 4 ms 24920 KB Output is correct
30 Correct 4 ms 24924 KB Output is correct
31 Correct 6 ms 22876 KB Output is correct
32 Correct 3 ms 20828 KB Output is correct
33 Correct 3 ms 24920 KB Output is correct
34 Correct 3 ms 24924 KB Output is correct
35 Correct 3 ms 24924 KB Output is correct
36 Correct 117 ms 217912 KB Output is correct
37 Correct 36 ms 174680 KB Output is correct
38 Correct 20 ms 148824 KB Output is correct
39 Correct 32 ms 171284 KB Output is correct
40 Correct 43 ms 188568 KB Output is correct
41 Correct 18 ms 138064 KB Output is correct
42 Correct 15 ms 123740 KB Output is correct
43 Correct 18 ms 138076 KB Output is correct
44 Correct 10 ms 84572 KB Output is correct
45 Correct 20 ms 140092 KB Output is correct
46 Correct 15 ms 117600 KB Output is correct
47 Correct 19 ms 142220 KB Output is correct
48 Correct 16 ms 125788 KB Output is correct
49 Correct 21 ms 138260 KB Output is correct
50 Correct 12 ms 98904 KB Output is correct
51 Correct 18 ms 138072 KB Output is correct
52 Correct 10 ms 82524 KB Output is correct
53 Correct 17 ms 136024 KB Output is correct
54 Correct 12 ms 92760 KB Output is correct
55 Correct 18 ms 140120 KB Output is correct
56 Correct 13 ms 103004 KB Output is correct
57 Correct 19 ms 142172 KB Output is correct
58 Correct 13 ms 109284 KB Output is correct
59 Correct 75 ms 243732 KB Output is correct
60 Correct 43 ms 198160 KB Output is correct
61 Correct 76 ms 243796 KB Output is correct
62 Correct 42 ms 198224 KB Output is correct
63 Correct 73 ms 243768 KB Output is correct
64 Correct 43 ms 197972 KB Output is correct
65 Correct 67 ms 229796 KB Output is correct
66 Correct 61 ms 220492 KB Output is correct
67 Correct 59 ms 214344 KB Output is correct
68 Correct 51 ms 205996 KB Output is correct
69 Correct 65 ms 228344 KB Output is correct
70 Correct 58 ms 223056 KB Output is correct
71 Correct 61 ms 225548 KB Output is correct
72 Correct 61 ms 225724 KB Output is correct
73 Correct 54 ms 216912 KB Output is correct
74 Correct 52 ms 210780 KB Output is correct
75 Correct 62 ms 221780 KB Output is correct
76 Correct 85 ms 237908 KB Output is correct
77 Correct 67 ms 238940 KB Output is correct
78 Correct 54 ms 207188 KB Output is correct
79 Correct 54 ms 211796 KB Output is correct
80 Correct 68 ms 236368 KB Output is correct
81 Correct 55 ms 213072 KB Output is correct
82 Correct 55 ms 219220 KB Output is correct
83 Correct 71 ms 244756 KB Output is correct
84 Correct 59 ms 223300 KB Output is correct
85 Correct 64 ms 235012 KB Output is correct
86 Correct 63 ms 232108 KB Output is correct
87 Correct 61 ms 221776 KB Output is correct
88 Correct 78 ms 245256 KB Output is correct
89 Correct 75 ms 245300 KB Output is correct
90 Correct 54 ms 221788 KB Output is correct
91 Correct 75 ms 245292 KB Output is correct
92 Correct 71 ms 246096 KB Output is correct
93 Correct 63 ms 242256 KB Output is correct