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Submission #205324

# Submission time Handle Problem Language Result Execution time Memory
205324 2020-02-28T14:32:24 Z TadijaSebez Collecting Stamps 3 (JOI20_ho_t3) C++11
100 / 100
 146 ms 135544 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const ll inf=9e18;
const int N=205;
void ckmn(ll &a,ll b){a=min(a,b);}
ll dp[N][N][2][N];
int x[N],t[N];
int main(){
	int n,L;
	scanf("%i %i",&n,&L);
	for(int i=1;i<=n;i++)scanf("%i",&x[i]);
	for(int i=1;i<=n;i++)scanf("%i",&t[i]);
	for(int i=0;i<N;i++)for(int j=0;j<N;j++)for(int k=0;k<2;k++)for(int o=0;o<N;o++)dp[i][j][k][o]=inf;
	dp[0][n+1][0][0]=0;
	for(int sz=n+1;sz>1;sz--){
		for(int i=0;i<=n+1-sz;i++){
			int j=i+sz;
			for(int k=0;k<=n;k++){
				if(dp[i][j][0][k]<inf){
					ll tme=dp[i][j][0][k]+x[i+1]-x[i];
					ckmn(dp[i+1][j][0][k+(tme<=t[i+1])],tme);
					tme=dp[i][j][0][k]+x[i]+L-x[j-1];
					ckmn(dp[i][j-1][1][k+(tme<=t[j-1])],tme);
				}
				if(dp[i][j][1][k]<inf){
					ll tme=dp[i][j][1][k]+x[i+1]+L-x[j];
					ckmn(dp[i+1][j][0][k+(tme<=t[i+1])],tme);
					tme=dp[i][j][1][k]+x[j]-x[j-1];
					ckmn(dp[i][j-1][1][k+(tme<=t[j-1])],tme);
				}
			}
		}
	}
	int ans=0;
	for(int i=0;i<=n;i++)for(int k=1;k<=n;k++)if(dp[i][i+1][0][k]<inf || dp[i][i+1][1][k]<inf)ans=max(ans,k);
	printf("%i\n",ans);
	return 0;
}

Compilation message

ho_t3.cpp: In function 'int main()':
ho_t3.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&n,&L);
  ~~~~~^~~~~~~~~~~~~~~
ho_t3.cpp:12:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++)scanf("%i",&x[i]);
                       ~~~~~^~~~~~~~~~~~
ho_t3.cpp:13:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++)scanf("%i",&t[i]);
                       ~~~~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 135160 KB Output is correct
2 Correct 96 ms 135288 KB Output is correct
3 Correct 84 ms 135160 KB Output is correct
4 Correct 84 ms 135160 KB Output is correct
5 Correct 84 ms 135160 KB Output is correct
6 Correct 87 ms 135144 KB Output is correct
7 Correct 84 ms 135392 KB Output is correct
8 Correct 83 ms 135160 KB Output is correct
9 Correct 86 ms 135164 KB Output is correct
10 Correct 82 ms 135160 KB Output is correct
11 Correct 83 ms 135160 KB Output is correct
12 Correct 87 ms 135288 KB Output is correct
13 Correct 86 ms 135160 KB Output is correct
14 Correct 83 ms 135160 KB Output is correct
15 Correct 82 ms 135160 KB Output is correct
16 Correct 83 ms 135160 KB Output is correct
17 Correct 87 ms 135160 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 135160 KB Output is correct
2 Correct 96 ms 135288 KB Output is correct
3 Correct 84 ms 135160 KB Output is correct
4 Correct 84 ms 135160 KB Output is correct
5 Correct 84 ms 135160 KB Output is correct
6 Correct 87 ms 135144 KB Output is correct
7 Correct 84 ms 135392 KB Output is correct
8 Correct 83 ms 135160 KB Output is correct
9 Correct 86 ms 135164 KB Output is correct
10 Correct 82 ms 135160 KB Output is correct
11 Correct 83 ms 135160 KB Output is correct
12 Correct 87 ms 135288 KB Output is correct
13 Correct 86 ms 135160 KB Output is correct
14 Correct 83 ms 135160 KB Output is correct
15 Correct 82 ms 135160 KB Output is correct
16 Correct 83 ms 135160 KB Output is correct
17 Correct 87 ms 135160 KB Output is correct
18 Correct 83 ms 135164 KB Output is correct
19 Correct 86 ms 135160 KB Output is correct
20 Correct 85 ms 135160 KB Output is correct
21 Correct 84 ms 135160 KB Output is correct
22 Correct 87 ms 135160 KB Output is correct
23 Correct 84 ms 135160 KB Output is correct
24 Correct 83 ms 135160 KB Output is correct
25 Correct 83 ms 135160 KB Output is correct
26 Correct 85 ms 135160 KB Output is correct
27 Correct 81 ms 135160 KB Output is correct
28 Correct 90 ms 135288 KB Output is correct
29 Correct 84 ms 135160 KB Output is correct
30 Correct 84 ms 135160 KB Output is correct
31 Correct 106 ms 135160 KB Output is correct
32 Correct 82 ms 135164 KB Output is correct
33 Correct 84 ms 135160 KB Output is correct
34 Correct 83 ms 135160 KB Output is correct
35 Correct 87 ms 135288 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 135160 KB Output is correct
2 Correct 96 ms 135288 KB Output is correct
3 Correct 84 ms 135160 KB Output is correct
4 Correct 84 ms 135160 KB Output is correct
5 Correct 84 ms 135160 KB Output is correct
6 Correct 87 ms 135144 KB Output is correct
7 Correct 84 ms 135392 KB Output is correct
8 Correct 83 ms 135160 KB Output is correct
9 Correct 86 ms 135164 KB Output is correct
10 Correct 82 ms 135160 KB Output is correct
11 Correct 83 ms 135160 KB Output is correct
12 Correct 87 ms 135288 KB Output is correct
13 Correct 86 ms 135160 KB Output is correct
14 Correct 83 ms 135160 KB Output is correct
15 Correct 82 ms 135160 KB Output is correct
16 Correct 83 ms 135160 KB Output is correct
17 Correct 87 ms 135160 KB Output is correct
18 Correct 114 ms 135160 KB Output is correct
19 Correct 98 ms 135160 KB Output is correct
20 Correct 91 ms 135160 KB Output is correct
21 Correct 98 ms 135124 KB Output is correct
22 Correct 101 ms 135160 KB Output is correct
23 Correct 89 ms 135160 KB Output is correct
24 Correct 83 ms 135160 KB Output is correct
25 Correct 91 ms 135160 KB Output is correct
26 Correct 88 ms 135160 KB Output is correct
27 Correct 90 ms 135160 KB Output is correct
28 Correct 86 ms 135136 KB Output is correct
29 Correct 89 ms 135160 KB Output is correct
30 Correct 85 ms 135240 KB Output is correct
31 Correct 91 ms 135288 KB Output is correct
32 Correct 91 ms 135160 KB Output is correct
33 Correct 90 ms 135160 KB Output is correct
34 Correct 84 ms 135288 KB Output is correct
35 Correct 86 ms 135160 KB Output is correct
36 Correct 85 ms 135160 KB Output is correct
37 Correct 87 ms 135160 KB Output is correct
38 Correct 84 ms 135152 KB Output is correct
39 Correct 86 ms 135160 KB Output is correct
40 Correct 87 ms 135288 KB Output is correct
41 Correct 135 ms 135544 KB Output is correct
42 Correct 92 ms 135160 KB Output is correct
43 Correct 135 ms 135124 KB Output is correct
44 Correct 93 ms 135160 KB Output is correct
45 Correct 137 ms 135288 KB Output is correct
46 Correct 97 ms 135160 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 135160 KB Output is correct
2 Correct 96 ms 135288 KB Output is correct
3 Correct 84 ms 135160 KB Output is correct
4 Correct 84 ms 135160 KB Output is correct
5 Correct 84 ms 135160 KB Output is correct
6 Correct 87 ms 135144 KB Output is correct
7 Correct 84 ms 135392 KB Output is correct
8 Correct 83 ms 135160 KB Output is correct
9 Correct 86 ms 135164 KB Output is correct
10 Correct 82 ms 135160 KB Output is correct
11 Correct 83 ms 135160 KB Output is correct
12 Correct 87 ms 135288 KB Output is correct
13 Correct 86 ms 135160 KB Output is correct
14 Correct 83 ms 135160 KB Output is correct
15 Correct 82 ms 135160 KB Output is correct
16 Correct 83 ms 135160 KB Output is correct
17 Correct 87 ms 135160 KB Output is correct
18 Correct 83 ms 135164 KB Output is correct
19 Correct 86 ms 135160 KB Output is correct
20 Correct 85 ms 135160 KB Output is correct
21 Correct 84 ms 135160 KB Output is correct
22 Correct 87 ms 135160 KB Output is correct
23 Correct 84 ms 135160 KB Output is correct
24 Correct 83 ms 135160 KB Output is correct
25 Correct 83 ms 135160 KB Output is correct
26 Correct 85 ms 135160 KB Output is correct
27 Correct 81 ms 135160 KB Output is correct
28 Correct 90 ms 135288 KB Output is correct
29 Correct 84 ms 135160 KB Output is correct
30 Correct 84 ms 135160 KB Output is correct
31 Correct 106 ms 135160 KB Output is correct
32 Correct 82 ms 135164 KB Output is correct
33 Correct 84 ms 135160 KB Output is correct
34 Correct 83 ms 135160 KB Output is correct
35 Correct 87 ms 135288 KB Output is correct
36 Correct 114 ms 135160 KB Output is correct
37 Correct 98 ms 135160 KB Output is correct
38 Correct 91 ms 135160 KB Output is correct
39 Correct 98 ms 135124 KB Output is correct
40 Correct 101 ms 135160 KB Output is correct
41 Correct 89 ms 135160 KB Output is correct
42 Correct 83 ms 135160 KB Output is correct
43 Correct 91 ms 135160 KB Output is correct
44 Correct 88 ms 135160 KB Output is correct
45 Correct 90 ms 135160 KB Output is correct
46 Correct 86 ms 135136 KB Output is correct
47 Correct 89 ms 135160 KB Output is correct
48 Correct 85 ms 135240 KB Output is correct
49 Correct 91 ms 135288 KB Output is correct
50 Correct 91 ms 135160 KB Output is correct
51 Correct 90 ms 135160 KB Output is correct
52 Correct 84 ms 135288 KB Output is correct
53 Correct 86 ms 135160 KB Output is correct
54 Correct 85 ms 135160 KB Output is correct
55 Correct 87 ms 135160 KB Output is correct
56 Correct 84 ms 135152 KB Output is correct
57 Correct 86 ms 135160 KB Output is correct
58 Correct 87 ms 135288 KB Output is correct
59 Correct 135 ms 135544 KB Output is correct
60 Correct 92 ms 135160 KB Output is correct
61 Correct 135 ms 135124 KB Output is correct
62 Correct 93 ms 135160 KB Output is correct
63 Correct 137 ms 135288 KB Output is correct
64 Correct 97 ms 135160 KB Output is correct
65 Correct 123 ms 135160 KB Output is correct
66 Correct 122 ms 135160 KB Output is correct
67 Correct 119 ms 135160 KB Output is correct
68 Correct 113 ms 135160 KB Output is correct
69 Correct 124 ms 135160 KB Output is correct
70 Correct 134 ms 135160 KB Output is correct
71 Correct 121 ms 135160 KB Output is correct
72 Correct 133 ms 135160 KB Output is correct
73 Correct 110 ms 135160 KB Output is correct
74 Correct 126 ms 135160 KB Output is correct
75 Correct 123 ms 135160 KB Output is correct
76 Correct 134 ms 135160 KB Output is correct
77 Correct 126 ms 135192 KB Output is correct
78 Correct 121 ms 135160 KB Output is correct
79 Correct 115 ms 135160 KB Output is correct
80 Correct 131 ms 135160 KB Output is correct
81 Correct 129 ms 135160 KB Output is correct
82 Correct 119 ms 135160 KB Output is correct
83 Correct 146 ms 135160 KB Output is correct
84 Correct 112 ms 135164 KB Output is correct
85 Correct 130 ms 135160 KB Output is correct
86 Correct 128 ms 135288 KB Output is correct
87 Correct 137 ms 135160 KB Output is correct
88 Correct 141 ms 135260 KB Output is correct
89 Correct 132 ms 135160 KB Output is correct
90 Correct 98 ms 135160 KB Output is correct
91 Correct 143 ms 135160 KB Output is correct
92 Correct 131 ms 135160 KB Output is correct
93 Correct 97 ms 135144 KB Output is correct