oj.uz

Submission #817192

# Submission time Handle Problem Language Result Execution time Memory
817192 2023-08-09T10:25:34 Z reitracn Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 95 ms 129452 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
const int INF = 1e18;

int dp[202][202][202][2];


const int LEFT_SIDE = 0, RIGHT_SIDE = 1;
// posG, posD, nbStamps, side ==> temps min.

/////CHECK if posG+posD < N

signed main()
{
    for(int pG = 0; pG< 202; pG++)
    {
        for(int pD = 0; pD < 202; pD++)
        {
            for(int nbStamps = 0; nbStamps < 202; nbStamps++)
            {
                dp[pG][pD][nbStamps][0] = INF;
                dp[pG][pD][nbStamps][1] = INF;
            }
        }
    }
    dp[0][0][0][0] = dp[0][0][0][1] = 0;
    
    int N, lacLen;
    scanf("%lld%lld", &N, &lacLen);

    vector<int > posLeft(N+1);
    vector<int > expTimeLeft(N+1);

    vector<int > posRight(N+1);
    vector<int > expTimeRight(N+1);

    for(int iS = 1, iR = N; iS <= N; iS++, iR--)
    {
        int posAct;
        scanf("%lld", &posAct);
        posLeft[iS] = posAct;
        posRight[iR] = lacLen-posAct;
    }
    for(int iS = 1, iR = N; iS <= N; iS++, iR--)
    {
        int expTimeAct;
        scanf("%lld", &expTimeAct);
        expTimeLeft[iS] = expTimeAct;
        expTimeRight[iR] = expTimeAct;
    }
    /*for(int i= 1; i<=N; i++)
    {
        printf("%lld/%lld ", posLeft[i], expTimeLeft[i]);
    }
    printf("\n");
    for(int i= 1; i<=N; i++)
    {
        printf("%lld/%lld ", posRight[i], expTimeRight[i]);
    }
    printf("\n");*/
    
    int ans = 0;
    for(int nbStampsGot = 0; nbStampsGot <= N; nbStampsGot++)
    {
        for(int pL = 0; pL <= N; pL++)
        {
            for(int pR = 0; pR <= N - pL-1; pR++)/////////////////////////
            {
                for(int side = 0; side < 2; side ++)
                {
                    if(dp[pL][pR][nbStampsGot][side] == INF)
                        continue;
                    int tpsBefore = dp[pL][pR][nbStampsGot][side];
                    int tpsGauche, tpsDroite;
                    if(side == LEFT_SIDE)
                    {
                        tpsGauche = tpsBefore + abs(posLeft[pL+1] - posLeft[pL]);//////////////// 
                        tpsDroite = tpsBefore + posLeft[pL] + posRight[pR+1];////////////////
                    }
                    else
                    {
                        tpsGauche = tpsBefore + posRight[pR] + posLeft[pL+1];
                        tpsDroite = tpsBefore + abs(posRight[pR+1] - posRight[pR]);
                    }

                    if(tpsGauche <= expTimeLeft[pL +1])
                    {
                        dp[pL+1][pR][nbStampsGot+1][LEFT_SIDE] = min(dp[pL+1][pR][nbStampsGot+1][LEFT_SIDE], tpsGauche);
                        ans = max(ans, nbStampsGot+1);
                    }
                    else
                    {
                        dp[pL+1][pR][nbStampsGot][LEFT_SIDE] = min(dp[pL+1][pR][nbStampsGot][LEFT_SIDE], tpsGauche);
                    }

                    if(tpsDroite <= expTimeRight[pR +1])
                    {
                        dp[pL][pR+1][nbStampsGot+1][RIGHT_SIDE] = min(dp[pL][pR+1][nbStampsGot+1][RIGHT_SIDE], tpsDroite);
                        ans = max(ans, nbStampsGot+1);
                    }
                    else
                    {
                        dp[pL][pR+1][nbStampsGot][RIGHT_SIDE] = min(dp[pL][pR+1][nbStampsGot][RIGHT_SIDE], tpsDroite);
                    }
                }
            }
        }
    }

    printf("%lld\n", ans);

}

Compilation message

ho_t3.cpp: In function 'int main()':
ho_t3.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     scanf("%lld%lld", &N, &lacLen);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
ho_t3.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         scanf("%lld", &posAct);
      |         ~~~~~^~~~~~~~~~~~~~~~~
ho_t3.cpp:48:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         scanf("%lld", &expTimeAct);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 129224 KB Output is correct
2 Correct 48 ms 129300 KB Output is correct
3 Correct 55 ms 129228 KB Output is correct
4 Correct 54 ms 129208 KB Output is correct
5 Correct 48 ms 129232 KB Output is correct
6 Correct 46 ms 129320 KB Output is correct
7 Correct 48 ms 129204 KB Output is correct
8 Correct 47 ms 129292 KB Output is correct
9 Correct 47 ms 129304 KB Output is correct
10 Correct 51 ms 129324 KB Output is correct
11 Correct 48 ms 129236 KB Output is correct
12 Correct 50 ms 129252 KB Output is correct
13 Correct 54 ms 129228 KB Output is correct
14 Correct 46 ms 129328 KB Output is correct
15 Correct 47 ms 129204 KB Output is correct
16 Correct 46 ms 129216 KB Output is correct
17 Correct 47 ms 129312 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 129224 KB Output is correct
2 Correct 48 ms 129300 KB Output is correct
3 Correct 55 ms 129228 KB Output is correct
4 Correct 54 ms 129208 KB Output is correct
5 Correct 48 ms 129232 KB Output is correct
6 Correct 46 ms 129320 KB Output is correct
7 Correct 48 ms 129204 KB Output is correct
8 Correct 47 ms 129292 KB Output is correct
9 Correct 47 ms 129304 KB Output is correct
10 Correct 51 ms 129324 KB Output is correct
11 Correct 48 ms 129236 KB Output is correct
12 Correct 50 ms 129252 KB Output is correct
13 Correct 54 ms 129228 KB Output is correct
14 Correct 46 ms 129328 KB Output is correct
15 Correct 47 ms 129204 KB Output is correct
16 Correct 46 ms 129216 KB Output is correct
17 Correct 47 ms 129312 KB Output is correct
18 Correct 47 ms 129228 KB Output is correct
19 Correct 48 ms 129328 KB Output is correct
20 Correct 48 ms 129212 KB Output is correct
21 Correct 46 ms 129224 KB Output is correct
22 Correct 46 ms 129228 KB Output is correct
23 Correct 47 ms 129232 KB Output is correct
24 Correct 47 ms 129212 KB Output is correct
25 Correct 46 ms 129320 KB Output is correct
26 Correct 48 ms 129384 KB Output is correct
27 Correct 46 ms 129288 KB Output is correct
28 Correct 46 ms 129204 KB Output is correct
29 Correct 46 ms 129324 KB Output is correct
30 Correct 45 ms 129228 KB Output is correct
31 Correct 45 ms 129276 KB Output is correct
32 Correct 46 ms 129228 KB Output is correct
33 Correct 46 ms 129260 KB Output is correct
34 Correct 48 ms 129228 KB Output is correct
35 Correct 48 ms 129312 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 129224 KB Output is correct
2 Correct 48 ms 129300 KB Output is correct
3 Correct 55 ms 129228 KB Output is correct
4 Correct 54 ms 129208 KB Output is correct
5 Correct 48 ms 129232 KB Output is correct
6 Correct 46 ms 129320 KB Output is correct
7 Correct 48 ms 129204 KB Output is correct
8 Correct 47 ms 129292 KB Output is correct
9 Correct 47 ms 129304 KB Output is correct
10 Correct 51 ms 129324 KB Output is correct
11 Correct 48 ms 129236 KB Output is correct
12 Correct 50 ms 129252 KB Output is correct
13 Correct 54 ms 129228 KB Output is correct
14 Correct 46 ms 129328 KB Output is correct
15 Correct 47 ms 129204 KB Output is correct
16 Correct 46 ms 129216 KB Output is correct
17 Correct 47 ms 129312 KB Output is correct
18 Correct 77 ms 129324 KB Output is correct
19 Correct 61 ms 129308 KB Output is correct
20 Correct 54 ms 129244 KB Output is correct
21 Correct 62 ms 129220 KB Output is correct
22 Correct 68 ms 129320 KB Output is correct
23 Correct 52 ms 129228 KB Output is correct
24 Correct 50 ms 129296 KB Output is correct
25 Correct 53 ms 129328 KB Output is correct
26 Correct 48 ms 129200 KB Output is correct
27 Correct 54 ms 129228 KB Output is correct
28 Correct 51 ms 129304 KB Output is correct
29 Correct 56 ms 129436 KB Output is correct
30 Correct 50 ms 129228 KB Output is correct
31 Correct 51 ms 129224 KB Output is correct
32 Correct 49 ms 129224 KB Output is correct
33 Correct 51 ms 129244 KB Output is correct
34 Correct 48 ms 129224 KB Output is correct
35 Correct 52 ms 129228 KB Output is correct
36 Correct 49 ms 129228 KB Output is correct
37 Correct 51 ms 129228 KB Output is correct
38 Correct 49 ms 129212 KB Output is correct
39 Correct 52 ms 129256 KB Output is correct
40 Correct 50 ms 129320 KB Output is correct
41 Correct 91 ms 129340 KB Output is correct
42 Correct 70 ms 129216 KB Output is correct
43 Correct 91 ms 129332 KB Output is correct
44 Correct 72 ms 129420 KB Output is correct
45 Correct 92 ms 129332 KB Output is correct
46 Correct 71 ms 129320 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 129224 KB Output is correct
2 Correct 48 ms 129300 KB Output is correct
3 Correct 55 ms 129228 KB Output is correct
4 Correct 54 ms 129208 KB Output is correct
5 Correct 48 ms 129232 KB Output is correct
6 Correct 46 ms 129320 KB Output is correct
7 Correct 48 ms 129204 KB Output is correct
8 Correct 47 ms 129292 KB Output is correct
9 Correct 47 ms 129304 KB Output is correct
10 Correct 51 ms 129324 KB Output is correct
11 Correct 48 ms 129236 KB Output is correct
12 Correct 50 ms 129252 KB Output is correct
13 Correct 54 ms 129228 KB Output is correct
14 Correct 46 ms 129328 KB Output is correct
15 Correct 47 ms 129204 KB Output is correct
16 Correct 46 ms 129216 KB Output is correct
17 Correct 47 ms 129312 KB Output is correct
18 Correct 47 ms 129228 KB Output is correct
19 Correct 48 ms 129328 KB Output is correct
20 Correct 48 ms 129212 KB Output is correct
21 Correct 46 ms 129224 KB Output is correct
22 Correct 46 ms 129228 KB Output is correct
23 Correct 47 ms 129232 KB Output is correct
24 Correct 47 ms 129212 KB Output is correct
25 Correct 46 ms 129320 KB Output is correct
26 Correct 48 ms 129384 KB Output is correct
27 Correct 46 ms 129288 KB Output is correct
28 Correct 46 ms 129204 KB Output is correct
29 Correct 46 ms 129324 KB Output is correct
30 Correct 45 ms 129228 KB Output is correct
31 Correct 45 ms 129276 KB Output is correct
32 Correct 46 ms 129228 KB Output is correct
33 Correct 46 ms 129260 KB Output is correct
34 Correct 48 ms 129228 KB Output is correct
35 Correct 48 ms 129312 KB Output is correct
36 Correct 77 ms 129324 KB Output is correct
37 Correct 61 ms 129308 KB Output is correct
38 Correct 54 ms 129244 KB Output is correct
39 Correct 62 ms 129220 KB Output is correct
40 Correct 68 ms 129320 KB Output is correct
41 Correct 52 ms 129228 KB Output is correct
42 Correct 50 ms 129296 KB Output is correct
43 Correct 53 ms 129328 KB Output is correct
44 Correct 48 ms 129200 KB Output is correct
45 Correct 54 ms 129228 KB Output is correct
46 Correct 51 ms 129304 KB Output is correct
47 Correct 56 ms 129436 KB Output is correct
48 Correct 50 ms 129228 KB Output is correct
49 Correct 51 ms 129224 KB Output is correct
50 Correct 49 ms 129224 KB Output is correct
51 Correct 51 ms 129244 KB Output is correct
52 Correct 48 ms 129224 KB Output is correct
53 Correct 52 ms 129228 KB Output is correct
54 Correct 49 ms 129228 KB Output is correct
55 Correct 51 ms 129228 KB Output is correct
56 Correct 49 ms 129212 KB Output is correct
57 Correct 52 ms 129256 KB Output is correct
58 Correct 50 ms 129320 KB Output is correct
59 Correct 91 ms 129340 KB Output is correct
60 Correct 70 ms 129216 KB Output is correct
61 Correct 91 ms 129332 KB Output is correct
62 Correct 72 ms 129420 KB Output is correct
63 Correct 92 ms 129332 KB Output is correct
64 Correct 71 ms 129320 KB Output is correct
65 Correct 83 ms 129324 KB Output is correct
66 Correct 85 ms 129248 KB Output is correct
67 Correct 77 ms 129324 KB Output is correct
68 Correct 79 ms 129368 KB Output is correct
69 Correct 86 ms 129212 KB Output is correct
70 Correct 85 ms 129320 KB Output is correct
71 Correct 84 ms 129452 KB Output is correct
72 Correct 85 ms 129328 KB Output is correct
73 Correct 84 ms 129336 KB Output is correct
74 Correct 78 ms 129296 KB Output is correct
75 Correct 79 ms 129320 KB Output is correct
76 Correct 89 ms 129328 KB Output is correct
77 Correct 90 ms 129328 KB Output is correct
78 Correct 76 ms 129212 KB Output is correct
79 Correct 80 ms 129340 KB Output is correct
80 Correct 88 ms 129324 KB Output is correct
81 Correct 78 ms 129212 KB Output is correct
82 Correct 79 ms 129256 KB Output is correct
83 Correct 90 ms 129216 KB Output is correct
84 Correct 84 ms 129324 KB Output is correct
85 Correct 83 ms 129240 KB Output is correct
86 Correct 83 ms 129256 KB Output is correct
87 Correct 82 ms 129304 KB Output is correct
88 Correct 95 ms 129324 KB Output is correct
89 Correct 91 ms 129212 KB Output is correct
90 Correct 78 ms 129424 KB Output is correct
91 Correct 91 ms 129328 KB Output is correct
92 Correct 92 ms 129256 KB Output is correct
93 Correct 86 ms 129408 KB Output is correct