oj.uz

Submission #226465

# Submission time Handle Problem Language Result Execution time Memory
226465 2020-04-23T21:49:26 Z thebes Collecting Stamps 3 (JOI20_ho_t3) C++14
100 / 100
 236 ms 134988 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

const int MN = 202;
int N, L, i, arr[MN], t[MN]; ll nxt, d, td, k, dis[2][MN][MN][MN];
struct idk{int l, r, k, p;};
bitset<MN> vs[2][MN][MN], st[2][MN][MN];
queue<idk> q;

int main(){
    for(scanf("%d%d",&N,&L),i=1;i<=N;i++)
        scanf("%d",&arr[i]);
    for(i=1;i<=N;i++)
        scanf("%d",&t[i]);
    arr[0]=0; t[0]=-1;
    q.push({0,0,0,0});
    memset(dis,0x3f,sizeof(dis));
    dis[0][0][0][0]=0;
    while(q.size()){
        idk cur=q.front(); q.pop();
        vs[cur.p][cur.l][cur.r][cur.k]=1;
        st[cur.p][cur.l][cur.r][cur.k]=0;
        ll T = dis[cur.p][cur.l][cur.r][cur.k];
        if((cur.r+1)%(N+1)==cur.l%(N+1)){
            continue; // cannot expand further
        }
        nxt=cur.r+1;
        if(nxt>N) nxt=0;
        d=arr[nxt]-arr[cur.r];
        if(d<0) d+=L;
        if(!cur.p) td=arr[cur.r]-arr[cur.l];
        else td=0;
        if(td<0) td+=L;
        d+=td;
        if(T+d<=t[nxt]) k=cur.k+1;
        else k=cur.k;
        if(T+d<dis[1][cur.l][nxt][k]){
            dis[1][cur.l][nxt][k]=T+d;
            if(!st[1][cur.l][nxt][k]){
                q.push({cur.l,nxt,k,1});
                st[1][cur.l][nxt][k]=1;
            }
        }
        nxt=cur.l-1;
        if(nxt<0) nxt=N;
        d=arr[cur.l]-arr[nxt];
        if(d<0) d+=L;
        if(cur.p) td=arr[cur.r]-arr[cur.l];
        else td=0;
        if(td<0) td+=L;
        d+=td;
        if(T+d<=t[nxt]) k=cur.k+1;
        else k=cur.k;
        if(T+d<dis[0][nxt][cur.r][k]){
            dis[0][nxt][cur.r][k]=T+d;
            if(!st[0][nxt][cur.r][k]){
                q.push({nxt,cur.r,k,0});
                st[0][nxt][cur.r][k]=1;
            }
        }
    }
    int ans=0;
    for(i=0;i<=N;i++){
        for(int j=0;j<=N;j++){
            for(int k=0;k<=N;k++){
                if(dis[0][i][j][k]<(1LL<<60)||dis[1][i][j][k]<(1LL<<60))
                    ans=max(ans,k);
            }
        }
    }
    printf("%d\n",ans);
    return 0;
}

Compilation message

ho_t3.cpp: In function 'int main()':
ho_t3.cpp:43:39: warning: narrowing conversion of 'nxt' from 'll {aka long long int}' to 'int' inside { } [-Wnarrowing]
                 q.push({cur.l,nxt,k,1});
                                       ^
ho_t3.cpp:43:39: warning: narrowing conversion of 'k' from 'll {aka long long int}' to 'int' inside { } [-Wnarrowing]
ho_t3.cpp:60:39: warning: narrowing conversion of 'nxt' from 'll {aka long long int}' to 'int' inside { } [-Wnarrowing]
                 q.push({nxt,cur.r,k,0});
                                       ^
ho_t3.cpp:60:39: warning: narrowing conversion of 'k' from 'll {aka long long int}' to 'int' inside { } [-Wnarrowing]
ho_t3.cpp:14:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(scanf("%d%d",&N,&L),i=1;i<=N;i++)
         ~~~~~~~~~~~~~~~~~~~^~~~
ho_t3.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&arr[i]);
         ~~~~~^~~~~~~~~~~~~~
ho_t3.cpp:17:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&t[i]);
         ~~~~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 129400 KB Output is correct
2 Correct 63 ms 129272 KB Output is correct
3 Correct 66 ms 129660 KB Output is correct
4 Correct 72 ms 129528 KB Output is correct
5 Correct 65 ms 129528 KB Output is correct
6 Correct 67 ms 129656 KB Output is correct
7 Correct 65 ms 129528 KB Output is correct
8 Correct 70 ms 129528 KB Output is correct
9 Correct 73 ms 129656 KB Output is correct
10 Correct 64 ms 129400 KB Output is correct
11 Correct 65 ms 129488 KB Output is correct
12 Correct 66 ms 129656 KB Output is correct
13 Correct 72 ms 129656 KB Output is correct
14 Correct 63 ms 129528 KB Output is correct
15 Correct 63 ms 129528 KB Output is correct
16 Correct 64 ms 129528 KB Output is correct
17 Correct 73 ms 129532 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 129400 KB Output is correct
2 Correct 63 ms 129272 KB Output is correct
3 Correct 66 ms 129660 KB Output is correct
4 Correct 72 ms 129528 KB Output is correct
5 Correct 65 ms 129528 KB Output is correct
6 Correct 67 ms 129656 KB Output is correct
7 Correct 65 ms 129528 KB Output is correct
8 Correct 70 ms 129528 KB Output is correct
9 Correct 73 ms 129656 KB Output is correct
10 Correct 64 ms 129400 KB Output is correct
11 Correct 65 ms 129488 KB Output is correct
12 Correct 66 ms 129656 KB Output is correct
13 Correct 72 ms 129656 KB Output is correct
14 Correct 63 ms 129528 KB Output is correct
15 Correct 63 ms 129528 KB Output is correct
16 Correct 64 ms 129528 KB Output is correct
17 Correct 73 ms 129532 KB Output is correct
18 Correct 70 ms 129556 KB Output is correct
19 Correct 73 ms 129528 KB Output is correct
20 Correct 64 ms 129528 KB Output is correct
21 Correct 64 ms 129656 KB Output is correct
22 Correct 64 ms 129528 KB Output is correct
23 Correct 73 ms 129656 KB Output is correct
24 Correct 67 ms 129528 KB Output is correct
25 Correct 65 ms 129656 KB Output is correct
26 Correct 63 ms 129656 KB Output is correct
27 Correct 65 ms 129528 KB Output is correct
28 Correct 64 ms 129528 KB Output is correct
29 Correct 72 ms 129656 KB Output is correct
30 Correct 74 ms 129656 KB Output is correct
31 Correct 71 ms 129656 KB Output is correct
32 Correct 64 ms 129528 KB Output is correct
33 Correct 72 ms 129656 KB Output is correct
34 Correct 65 ms 129656 KB Output is correct
35 Correct 66 ms 129656 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 129400 KB Output is correct
2 Correct 63 ms 129272 KB Output is correct
3 Correct 66 ms 129660 KB Output is correct
4 Correct 72 ms 129528 KB Output is correct
5 Correct 65 ms 129528 KB Output is correct
6 Correct 67 ms 129656 KB Output is correct
7 Correct 65 ms 129528 KB Output is correct
8 Correct 70 ms 129528 KB Output is correct
9 Correct 73 ms 129656 KB Output is correct
10 Correct 64 ms 129400 KB Output is correct
11 Correct 65 ms 129488 KB Output is correct
12 Correct 66 ms 129656 KB Output is correct
13 Correct 72 ms 129656 KB Output is correct
14 Correct 63 ms 129528 KB Output is correct
15 Correct 63 ms 129528 KB Output is correct
16 Correct 64 ms 129528 KB Output is correct
17 Correct 73 ms 129532 KB Output is correct
18 Correct 137 ms 134008 KB Output is correct
19 Correct 103 ms 132856 KB Output is correct
20 Correct 79 ms 131704 KB Output is correct
21 Correct 98 ms 132600 KB Output is correct
22 Correct 129 ms 133368 KB Output is correct
23 Correct 82 ms 131576 KB Output is correct
24 Correct 82 ms 131192 KB Output is correct
25 Correct 94 ms 131580 KB Output is correct
26 Correct 75 ms 130448 KB Output is correct
27 Correct 84 ms 131576 KB Output is correct
28 Correct 80 ms 131064 KB Output is correct
29 Correct 79 ms 131704 KB Output is correct
30 Correct 71 ms 131192 KB Output is correct
31 Correct 79 ms 131576 KB Output is correct
32 Correct 70 ms 130808 KB Output is correct
33 Correct 84 ms 131448 KB Output is correct
34 Correct 66 ms 130424 KB Output is correct
35 Correct 80 ms 131320 KB Output is correct
36 Correct 75 ms 130680 KB Output is correct
37 Correct 70 ms 131448 KB Output is correct
38 Correct 69 ms 130808 KB Output is correct
39 Correct 73 ms 131448 KB Output is correct
40 Correct 72 ms 130944 KB Output is correct
41 Correct 173 ms 134776 KB Output is correct
42 Correct 75 ms 133240 KB Output is correct
43 Correct 198 ms 134776 KB Output is correct
44 Correct 73 ms 133112 KB Output is correct
45 Correct 172 ms 134648 KB Output is correct
46 Correct 78 ms 133244 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 129400 KB Output is correct
2 Correct 63 ms 129272 KB Output is correct
3 Correct 66 ms 129660 KB Output is correct
4 Correct 72 ms 129528 KB Output is correct
5 Correct 65 ms 129528 KB Output is correct
6 Correct 67 ms 129656 KB Output is correct
7 Correct 65 ms 129528 KB Output is correct
8 Correct 70 ms 129528 KB Output is correct
9 Correct 73 ms 129656 KB Output is correct
10 Correct 64 ms 129400 KB Output is correct
11 Correct 65 ms 129488 KB Output is correct
12 Correct 66 ms 129656 KB Output is correct
13 Correct 72 ms 129656 KB Output is correct
14 Correct 63 ms 129528 KB Output is correct
15 Correct 63 ms 129528 KB Output is correct
16 Correct 64 ms 129528 KB Output is correct
17 Correct 73 ms 129532 KB Output is correct
18 Correct 70 ms 129556 KB Output is correct
19 Correct 73 ms 129528 KB Output is correct
20 Correct 64 ms 129528 KB Output is correct
21 Correct 64 ms 129656 KB Output is correct
22 Correct 64 ms 129528 KB Output is correct
23 Correct 73 ms 129656 KB Output is correct
24 Correct 67 ms 129528 KB Output is correct
25 Correct 65 ms 129656 KB Output is correct
26 Correct 63 ms 129656 KB Output is correct
27 Correct 65 ms 129528 KB Output is correct
28 Correct 64 ms 129528 KB Output is correct
29 Correct 72 ms 129656 KB Output is correct
30 Correct 74 ms 129656 KB Output is correct
31 Correct 71 ms 129656 KB Output is correct
32 Correct 64 ms 129528 KB Output is correct
33 Correct 72 ms 129656 KB Output is correct
34 Correct 65 ms 129656 KB Output is correct
35 Correct 66 ms 129656 KB Output is correct
36 Correct 137 ms 134008 KB Output is correct
37 Correct 103 ms 132856 KB Output is correct
38 Correct 79 ms 131704 KB Output is correct
39 Correct 98 ms 132600 KB Output is correct
40 Correct 129 ms 133368 KB Output is correct
41 Correct 82 ms 131576 KB Output is correct
42 Correct 82 ms 131192 KB Output is correct
43 Correct 94 ms 131580 KB Output is correct
44 Correct 75 ms 130448 KB Output is correct
45 Correct 84 ms 131576 KB Output is correct
46 Correct 80 ms 131064 KB Output is correct
47 Correct 79 ms 131704 KB Output is correct
48 Correct 71 ms 131192 KB Output is correct
49 Correct 79 ms 131576 KB Output is correct
50 Correct 70 ms 130808 KB Output is correct
51 Correct 84 ms 131448 KB Output is correct
52 Correct 66 ms 130424 KB Output is correct
53 Correct 80 ms 131320 KB Output is correct
54 Correct 75 ms 130680 KB Output is correct
55 Correct 70 ms 131448 KB Output is correct
56 Correct 69 ms 130808 KB Output is correct
57 Correct 73 ms 131448 KB Output is correct
58 Correct 72 ms 130944 KB Output is correct
59 Correct 173 ms 134776 KB Output is correct
60 Correct 75 ms 133240 KB Output is correct
61 Correct 198 ms 134776 KB Output is correct
62 Correct 73 ms 133112 KB Output is correct
63 Correct 172 ms 134648 KB Output is correct
64 Correct 78 ms 133244 KB Output is correct
65 Correct 159 ms 134320 KB Output is correct
66 Correct 143 ms 134136 KB Output is correct
67 Correct 136 ms 133880 KB Output is correct
68 Correct 131 ms 133804 KB Output is correct
69 Correct 160 ms 134264 KB Output is correct
70 Correct 168 ms 134512 KB Output is correct
71 Correct 149 ms 134264 KB Output is correct
72 Correct 170 ms 134520 KB Output is correct
73 Correct 115 ms 134020 KB Output is correct
74 Correct 172 ms 134136 KB Output is correct
75 Correct 164 ms 134008 KB Output is correct
76 Correct 201 ms 134648 KB Output is correct
77 Correct 168 ms 134392 KB Output is correct
78 Correct 155 ms 134008 KB Output is correct
79 Correct 164 ms 133880 KB Output is correct
80 Correct 198 ms 134520 KB Output is correct
81 Correct 155 ms 133752 KB Output is correct
82 Correct 112 ms 133880 KB Output is correct
83 Correct 176 ms 134520 KB Output is correct
84 Correct 114 ms 133880 KB Output is correct
85 Correct 151 ms 134232 KB Output is correct
86 Correct 144 ms 134136 KB Output is correct
87 Correct 149 ms 134172 KB Output is correct
88 Correct 236 ms 134904 KB Output is correct
89 Correct 176 ms 134716 KB Output is correct
90 Correct 76 ms 133624 KB Output is correct
91 Correct 209 ms 134988 KB Output is correct
92 Correct 172 ms 134648 KB Output is correct
93 Correct 80 ms 134136 KB Output is correct