#include<bits/stdc++.h>
#define ll long long
#define int long long
const int nmax = 200 + 5, N = 3e5 + 5;
const ll oo = 1e18;
const int lg = 7, M = 4e3;
const int base = 2e5, mod = 998244353;
#define pii pair<ll, ll>
#define fi first
#define se second
#define endl "\n"
#define debug(a, n) for(int i = 1; i <= n; ++i) cout << a[i] << ' ';cout << endl
using namespace std;
int n, m, L;
int a[nmax * 2];
ll f[nmax][nmax * 2][nmax][2];
int b[nmax * 2];
void ckmin(ll &a, ll b){
a = min(a, b);
}
int cost(int i, int j, int x, int cur){
if(x > j){
x -= m;
return ((x >= i) == 0 && b[x] >= cur);
}
else{
x += m;
return ((x <= j) == 0 && b[x] >= cur);
}
return 0;
}
main(){
ios_base::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
// freopen("code.inp", "r", stdin);
// freopen("code.out", "w", stdout);
cin >> n >> L;
memset(f, 0x3f, sizeof f);
for(int i = 1; i <= n; ++i) cin >> a[i];
for(int i = 1; i <= n; ++i) cin >> b[i];
a[++n] = L;
m = n - 1;
for(int i = 1; i <= m; ++i){
a[++n] = a[i];
b[n] = b[i];
}
++m;
f[m][m][0][0] = f[m][m][0][1] = 0;
// cout << cost(m, m, m - 1, 2) << ' ';
for(int i = m; i >= 1; --i){
for(int j = m; j <= n; ++j){
for(int k = 0; k <= m; ++k){
int res = a[m] - a[i];
if(j != m) res += a[j];
ckmin(f[i][j][k][0], f[i][j][k][1] + res);
ckmin(f[i][j][k][1], f[i][j][k][0] + res);
//
ll cur = f[i][j][k][0] + abs(a[i - 1] - a[i]);
ckmin(f[i - 1][j][k + cost(i, j, i - 1, cur)][0], cur);
cur = f[i][j][k][1];
if(j == m) cur += a[j + 1];
else cur += a[j + 1] - a[j];
ckmin(f[i][j + 1][k + cost(i, j, j + 1, cur)][1], cur);
}
}
}
// cout << f[5][m + 1][2][1] << ' ';
int ans = 0;
for(int k = m; k >= 0; --k){
for(int i = 1; i <= m; ++i){
for(int j = m; j <= n; ++j){
if(min(f[i][j][k][0], f[i][j][k][1]) < oo) cout << k, exit(0);
}
}
}
}
/*
4 5
3 1 3 7
3 2 0 4
1 2 5 1
4 2 4 9
3 4 3 9
*/
Compilation message
ho_t3.cpp:35:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
35 | main(){
| ^~~~
ho_t3.cpp: In function 'int main()':
ho_t3.cpp:71:9: warning: unused variable 'ans' [-Wunused-variable]
71 | int ans = 0;
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
97 ms |
270160 KB |
Output is correct |
2 |
Correct |
110 ms |
269984 KB |
Output is correct |
3 |
Correct |
104 ms |
270160 KB |
Output is correct |
4 |
Correct |
108 ms |
270164 KB |
Output is correct |
5 |
Correct |
93 ms |
270108 KB |
Output is correct |
6 |
Correct |
104 ms |
270176 KB |
Output is correct |
7 |
Correct |
114 ms |
269936 KB |
Output is correct |
8 |
Correct |
91 ms |
270012 KB |
Output is correct |
9 |
Correct |
104 ms |
269984 KB |
Output is correct |
10 |
Correct |
95 ms |
269948 KB |
Output is correct |
11 |
Correct |
99 ms |
270028 KB |
Output is correct |
12 |
Correct |
95 ms |
270164 KB |
Output is correct |
13 |
Correct |
98 ms |
270164 KB |
Output is correct |
14 |
Correct |
93 ms |
270164 KB |
Output is correct |
15 |
Correct |
106 ms |
270164 KB |
Output is correct |
16 |
Correct |
92 ms |
269976 KB |
Output is correct |
17 |
Correct |
101 ms |
270056 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
97 ms |
270160 KB |
Output is correct |
2 |
Correct |
110 ms |
269984 KB |
Output is correct |
3 |
Correct |
104 ms |
270160 KB |
Output is correct |
4 |
Correct |
108 ms |
270164 KB |
Output is correct |
5 |
Correct |
93 ms |
270108 KB |
Output is correct |
6 |
Correct |
104 ms |
270176 KB |
Output is correct |
7 |
Correct |
114 ms |
269936 KB |
Output is correct |
8 |
Correct |
91 ms |
270012 KB |
Output is correct |
9 |
Correct |
104 ms |
269984 KB |
Output is correct |
10 |
Correct |
95 ms |
269948 KB |
Output is correct |
11 |
Correct |
99 ms |
270028 KB |
Output is correct |
12 |
Correct |
95 ms |
270164 KB |
Output is correct |
13 |
Correct |
98 ms |
270164 KB |
Output is correct |
14 |
Correct |
93 ms |
270164 KB |
Output is correct |
15 |
Correct |
106 ms |
270164 KB |
Output is correct |
16 |
Correct |
92 ms |
269976 KB |
Output is correct |
17 |
Correct |
101 ms |
270056 KB |
Output is correct |
18 |
Correct |
97 ms |
270096 KB |
Output is correct |
19 |
Correct |
94 ms |
270044 KB |
Output is correct |
20 |
Correct |
102 ms |
269964 KB |
Output is correct |
21 |
Correct |
93 ms |
269976 KB |
Output is correct |
22 |
Correct |
99 ms |
269952 KB |
Output is correct |
23 |
Correct |
105 ms |
269980 KB |
Output is correct |
24 |
Correct |
90 ms |
270164 KB |
Output is correct |
25 |
Correct |
110 ms |
270124 KB |
Output is correct |
26 |
Correct |
106 ms |
270024 KB |
Output is correct |
27 |
Correct |
108 ms |
270004 KB |
Output is correct |
28 |
Correct |
91 ms |
270160 KB |
Output is correct |
29 |
Correct |
92 ms |
270160 KB |
Output is correct |
30 |
Correct |
96 ms |
270164 KB |
Output is correct |
31 |
Correct |
90 ms |
270060 KB |
Output is correct |
32 |
Correct |
89 ms |
270164 KB |
Output is correct |
33 |
Correct |
88 ms |
270008 KB |
Output is correct |
34 |
Correct |
89 ms |
270040 KB |
Output is correct |
35 |
Correct |
94 ms |
270164 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
97 ms |
270160 KB |
Output is correct |
2 |
Correct |
110 ms |
269984 KB |
Output is correct |
3 |
Correct |
104 ms |
270160 KB |
Output is correct |
4 |
Correct |
108 ms |
270164 KB |
Output is correct |
5 |
Correct |
93 ms |
270108 KB |
Output is correct |
6 |
Correct |
104 ms |
270176 KB |
Output is correct |
7 |
Correct |
114 ms |
269936 KB |
Output is correct |
8 |
Correct |
91 ms |
270012 KB |
Output is correct |
9 |
Correct |
104 ms |
269984 KB |
Output is correct |
10 |
Correct |
95 ms |
269948 KB |
Output is correct |
11 |
Correct |
99 ms |
270028 KB |
Output is correct |
12 |
Correct |
95 ms |
270164 KB |
Output is correct |
13 |
Correct |
98 ms |
270164 KB |
Output is correct |
14 |
Correct |
93 ms |
270164 KB |
Output is correct |
15 |
Correct |
106 ms |
270164 KB |
Output is correct |
16 |
Correct |
92 ms |
269976 KB |
Output is correct |
17 |
Correct |
101 ms |
270056 KB |
Output is correct |
18 |
Correct |
140 ms |
270112 KB |
Output is correct |
19 |
Correct |
108 ms |
270052 KB |
Output is correct |
20 |
Correct |
101 ms |
270160 KB |
Output is correct |
21 |
Correct |
111 ms |
270164 KB |
Output is correct |
22 |
Correct |
111 ms |
270160 KB |
Output is correct |
23 |
Correct |
98 ms |
270088 KB |
Output is correct |
24 |
Correct |
86 ms |
270160 KB |
Output is correct |
25 |
Correct |
93 ms |
270160 KB |
Output is correct |
26 |
Correct |
95 ms |
270160 KB |
Output is correct |
27 |
Correct |
107 ms |
270164 KB |
Output is correct |
28 |
Correct |
93 ms |
270160 KB |
Output is correct |
29 |
Correct |
99 ms |
270160 KB |
Output is correct |
30 |
Correct |
91 ms |
270160 KB |
Output is correct |
31 |
Correct |
95 ms |
270160 KB |
Output is correct |
32 |
Correct |
89 ms |
270120 KB |
Output is correct |
33 |
Correct |
98 ms |
270164 KB |
Output is correct |
34 |
Correct |
92 ms |
269944 KB |
Output is correct |
35 |
Correct |
96 ms |
270156 KB |
Output is correct |
36 |
Correct |
88 ms |
270164 KB |
Output is correct |
37 |
Correct |
111 ms |
270160 KB |
Output is correct |
38 |
Correct |
96 ms |
270160 KB |
Output is correct |
39 |
Correct |
114 ms |
269996 KB |
Output is correct |
40 |
Correct |
94 ms |
270168 KB |
Output is correct |
41 |
Correct |
131 ms |
270160 KB |
Output is correct |
42 |
Correct |
127 ms |
270056 KB |
Output is correct |
43 |
Correct |
126 ms |
270160 KB |
Output is correct |
44 |
Correct |
125 ms |
270164 KB |
Output is correct |
45 |
Correct |
133 ms |
270164 KB |
Output is correct |
46 |
Correct |
154 ms |
270160 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
97 ms |
270160 KB |
Output is correct |
2 |
Correct |
110 ms |
269984 KB |
Output is correct |
3 |
Correct |
104 ms |
270160 KB |
Output is correct |
4 |
Correct |
108 ms |
270164 KB |
Output is correct |
5 |
Correct |
93 ms |
270108 KB |
Output is correct |
6 |
Correct |
104 ms |
270176 KB |
Output is correct |
7 |
Correct |
114 ms |
269936 KB |
Output is correct |
8 |
Correct |
91 ms |
270012 KB |
Output is correct |
9 |
Correct |
104 ms |
269984 KB |
Output is correct |
10 |
Correct |
95 ms |
269948 KB |
Output is correct |
11 |
Correct |
99 ms |
270028 KB |
Output is correct |
12 |
Correct |
95 ms |
270164 KB |
Output is correct |
13 |
Correct |
98 ms |
270164 KB |
Output is correct |
14 |
Correct |
93 ms |
270164 KB |
Output is correct |
15 |
Correct |
106 ms |
270164 KB |
Output is correct |
16 |
Correct |
92 ms |
269976 KB |
Output is correct |
17 |
Correct |
101 ms |
270056 KB |
Output is correct |
18 |
Correct |
97 ms |
270096 KB |
Output is correct |
19 |
Correct |
94 ms |
270044 KB |
Output is correct |
20 |
Correct |
102 ms |
269964 KB |
Output is correct |
21 |
Correct |
93 ms |
269976 KB |
Output is correct |
22 |
Correct |
99 ms |
269952 KB |
Output is correct |
23 |
Correct |
105 ms |
269980 KB |
Output is correct |
24 |
Correct |
90 ms |
270164 KB |
Output is correct |
25 |
Correct |
110 ms |
270124 KB |
Output is correct |
26 |
Correct |
106 ms |
270024 KB |
Output is correct |
27 |
Correct |
108 ms |
270004 KB |
Output is correct |
28 |
Correct |
91 ms |
270160 KB |
Output is correct |
29 |
Correct |
92 ms |
270160 KB |
Output is correct |
30 |
Correct |
96 ms |
270164 KB |
Output is correct |
31 |
Correct |
90 ms |
270060 KB |
Output is correct |
32 |
Correct |
89 ms |
270164 KB |
Output is correct |
33 |
Correct |
88 ms |
270008 KB |
Output is correct |
34 |
Correct |
89 ms |
270040 KB |
Output is correct |
35 |
Correct |
94 ms |
270164 KB |
Output is correct |
36 |
Correct |
140 ms |
270112 KB |
Output is correct |
37 |
Correct |
108 ms |
270052 KB |
Output is correct |
38 |
Correct |
101 ms |
270160 KB |
Output is correct |
39 |
Correct |
111 ms |
270164 KB |
Output is correct |
40 |
Correct |
111 ms |
270160 KB |
Output is correct |
41 |
Correct |
98 ms |
270088 KB |
Output is correct |
42 |
Correct |
86 ms |
270160 KB |
Output is correct |
43 |
Correct |
93 ms |
270160 KB |
Output is correct |
44 |
Correct |
95 ms |
270160 KB |
Output is correct |
45 |
Correct |
107 ms |
270164 KB |
Output is correct |
46 |
Correct |
93 ms |
270160 KB |
Output is correct |
47 |
Correct |
99 ms |
270160 KB |
Output is correct |
48 |
Correct |
91 ms |
270160 KB |
Output is correct |
49 |
Correct |
95 ms |
270160 KB |
Output is correct |
50 |
Correct |
89 ms |
270120 KB |
Output is correct |
51 |
Correct |
98 ms |
270164 KB |
Output is correct |
52 |
Correct |
92 ms |
269944 KB |
Output is correct |
53 |
Correct |
96 ms |
270156 KB |
Output is correct |
54 |
Correct |
88 ms |
270164 KB |
Output is correct |
55 |
Correct |
111 ms |
270160 KB |
Output is correct |
56 |
Correct |
96 ms |
270160 KB |
Output is correct |
57 |
Correct |
114 ms |
269996 KB |
Output is correct |
58 |
Correct |
94 ms |
270168 KB |
Output is correct |
59 |
Correct |
131 ms |
270160 KB |
Output is correct |
60 |
Correct |
127 ms |
270056 KB |
Output is correct |
61 |
Correct |
126 ms |
270160 KB |
Output is correct |
62 |
Correct |
125 ms |
270164 KB |
Output is correct |
63 |
Correct |
133 ms |
270164 KB |
Output is correct |
64 |
Correct |
154 ms |
270160 KB |
Output is correct |
65 |
Correct |
129 ms |
270160 KB |
Output is correct |
66 |
Correct |
131 ms |
270080 KB |
Output is correct |
67 |
Correct |
139 ms |
270080 KB |
Output is correct |
68 |
Correct |
129 ms |
270028 KB |
Output is correct |
69 |
Correct |
126 ms |
270108 KB |
Output is correct |
70 |
Correct |
135 ms |
270160 KB |
Output is correct |
71 |
Correct |
180 ms |
270164 KB |
Output is correct |
72 |
Correct |
113 ms |
269976 KB |
Output is correct |
73 |
Correct |
128 ms |
270164 KB |
Output is correct |
74 |
Correct |
114 ms |
269976 KB |
Output is correct |
75 |
Correct |
128 ms |
270164 KB |
Output is correct |
76 |
Correct |
128 ms |
270164 KB |
Output is correct |
77 |
Correct |
130 ms |
270160 KB |
Output is correct |
78 |
Correct |
112 ms |
270160 KB |
Output is correct |
79 |
Correct |
126 ms |
270160 KB |
Output is correct |
80 |
Correct |
119 ms |
270160 KB |
Output is correct |
81 |
Correct |
130 ms |
270164 KB |
Output is correct |
82 |
Correct |
138 ms |
270164 KB |
Output is correct |
83 |
Correct |
147 ms |
270048 KB |
Output is correct |
84 |
Correct |
133 ms |
270188 KB |
Output is correct |
85 |
Correct |
127 ms |
269944 KB |
Output is correct |
86 |
Correct |
140 ms |
270160 KB |
Output is correct |
87 |
Correct |
136 ms |
269956 KB |
Output is correct |
88 |
Correct |
139 ms |
270164 KB |
Output is correct |
89 |
Correct |
140 ms |
270192 KB |
Output is correct |
90 |
Correct |
149 ms |
270160 KB |
Output is correct |
91 |
Correct |
127 ms |
270008 KB |
Output is correct |
92 |
Correct |
134 ms |
269996 KB |
Output is correct |
93 |
Correct |
178 ms |
270136 KB |
Output is correct |