#include<bits/stdc++.h>
#define ll 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:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
34 | main(){
| ^~~~
ho_t3.cpp: In function 'int main()':
ho_t3.cpp:70:9: warning: unused variable 'ans' [-Wunused-variable]
70 | int ans = 0;
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
130 ms |
270072 KB |
Output is correct |
2 |
Correct |
136 ms |
270116 KB |
Output is correct |
3 |
Correct |
143 ms |
270164 KB |
Output is correct |
4 |
Correct |
130 ms |
270164 KB |
Output is correct |
5 |
Correct |
118 ms |
270160 KB |
Output is correct |
6 |
Correct |
128 ms |
270164 KB |
Output is correct |
7 |
Correct |
131 ms |
270160 KB |
Output is correct |
8 |
Correct |
118 ms |
270160 KB |
Output is correct |
9 |
Correct |
150 ms |
270096 KB |
Output is correct |
10 |
Correct |
127 ms |
269948 KB |
Output is correct |
11 |
Correct |
140 ms |
270180 KB |
Output is correct |
12 |
Correct |
125 ms |
270160 KB |
Output is correct |
13 |
Correct |
134 ms |
270164 KB |
Output is correct |
14 |
Correct |
118 ms |
270160 KB |
Output is correct |
15 |
Correct |
139 ms |
270088 KB |
Output is correct |
16 |
Correct |
158 ms |
269944 KB |
Output is correct |
17 |
Correct |
130 ms |
270076 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
130 ms |
270072 KB |
Output is correct |
2 |
Correct |
136 ms |
270116 KB |
Output is correct |
3 |
Correct |
143 ms |
270164 KB |
Output is correct |
4 |
Correct |
130 ms |
270164 KB |
Output is correct |
5 |
Correct |
118 ms |
270160 KB |
Output is correct |
6 |
Correct |
128 ms |
270164 KB |
Output is correct |
7 |
Correct |
131 ms |
270160 KB |
Output is correct |
8 |
Correct |
118 ms |
270160 KB |
Output is correct |
9 |
Correct |
150 ms |
270096 KB |
Output is correct |
10 |
Correct |
127 ms |
269948 KB |
Output is correct |
11 |
Correct |
140 ms |
270180 KB |
Output is correct |
12 |
Correct |
125 ms |
270160 KB |
Output is correct |
13 |
Correct |
134 ms |
270164 KB |
Output is correct |
14 |
Correct |
118 ms |
270160 KB |
Output is correct |
15 |
Correct |
139 ms |
270088 KB |
Output is correct |
16 |
Correct |
158 ms |
269944 KB |
Output is correct |
17 |
Correct |
130 ms |
270076 KB |
Output is correct |
18 |
Incorrect |
136 ms |
270160 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
130 ms |
270072 KB |
Output is correct |
2 |
Correct |
136 ms |
270116 KB |
Output is correct |
3 |
Correct |
143 ms |
270164 KB |
Output is correct |
4 |
Correct |
130 ms |
270164 KB |
Output is correct |
5 |
Correct |
118 ms |
270160 KB |
Output is correct |
6 |
Correct |
128 ms |
270164 KB |
Output is correct |
7 |
Correct |
131 ms |
270160 KB |
Output is correct |
8 |
Correct |
118 ms |
270160 KB |
Output is correct |
9 |
Correct |
150 ms |
270096 KB |
Output is correct |
10 |
Correct |
127 ms |
269948 KB |
Output is correct |
11 |
Correct |
140 ms |
270180 KB |
Output is correct |
12 |
Correct |
125 ms |
270160 KB |
Output is correct |
13 |
Correct |
134 ms |
270164 KB |
Output is correct |
14 |
Correct |
118 ms |
270160 KB |
Output is correct |
15 |
Correct |
139 ms |
270088 KB |
Output is correct |
16 |
Correct |
158 ms |
269944 KB |
Output is correct |
17 |
Correct |
130 ms |
270076 KB |
Output is correct |
18 |
Correct |
187 ms |
270136 KB |
Output is correct |
19 |
Correct |
160 ms |
270040 KB |
Output is correct |
20 |
Correct |
140 ms |
270080 KB |
Output is correct |
21 |
Correct |
143 ms |
270160 KB |
Output is correct |
22 |
Correct |
175 ms |
270160 KB |
Output is correct |
23 |
Correct |
130 ms |
270012 KB |
Output is correct |
24 |
Correct |
128 ms |
270192 KB |
Output is correct |
25 |
Correct |
142 ms |
270068 KB |
Output is correct |
26 |
Correct |
129 ms |
270164 KB |
Output is correct |
27 |
Correct |
123 ms |
270160 KB |
Output is correct |
28 |
Correct |
149 ms |
270008 KB |
Output is correct |
29 |
Correct |
149 ms |
270160 KB |
Output is correct |
30 |
Correct |
131 ms |
269964 KB |
Output is correct |
31 |
Correct |
127 ms |
270164 KB |
Output is correct |
32 |
Correct |
134 ms |
270264 KB |
Output is correct |
33 |
Correct |
145 ms |
269980 KB |
Output is correct |
34 |
Correct |
141 ms |
270012 KB |
Output is correct |
35 |
Correct |
136 ms |
270072 KB |
Output is correct |
36 |
Correct |
133 ms |
270160 KB |
Output is correct |
37 |
Correct |
143 ms |
270164 KB |
Output is correct |
38 |
Correct |
136 ms |
270164 KB |
Output is correct |
39 |
Correct |
145 ms |
270164 KB |
Output is correct |
40 |
Correct |
123 ms |
270160 KB |
Output is correct |
41 |
Correct |
196 ms |
270160 KB |
Output is correct |
42 |
Correct |
179 ms |
270164 KB |
Output is correct |
43 |
Correct |
161 ms |
270160 KB |
Output is correct |
44 |
Correct |
176 ms |
270164 KB |
Output is correct |
45 |
Correct |
162 ms |
269940 KB |
Output is correct |
46 |
Correct |
168 ms |
270160 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
130 ms |
270072 KB |
Output is correct |
2 |
Correct |
136 ms |
270116 KB |
Output is correct |
3 |
Correct |
143 ms |
270164 KB |
Output is correct |
4 |
Correct |
130 ms |
270164 KB |
Output is correct |
5 |
Correct |
118 ms |
270160 KB |
Output is correct |
6 |
Correct |
128 ms |
270164 KB |
Output is correct |
7 |
Correct |
131 ms |
270160 KB |
Output is correct |
8 |
Correct |
118 ms |
270160 KB |
Output is correct |
9 |
Correct |
150 ms |
270096 KB |
Output is correct |
10 |
Correct |
127 ms |
269948 KB |
Output is correct |
11 |
Correct |
140 ms |
270180 KB |
Output is correct |
12 |
Correct |
125 ms |
270160 KB |
Output is correct |
13 |
Correct |
134 ms |
270164 KB |
Output is correct |
14 |
Correct |
118 ms |
270160 KB |
Output is correct |
15 |
Correct |
139 ms |
270088 KB |
Output is correct |
16 |
Correct |
158 ms |
269944 KB |
Output is correct |
17 |
Correct |
130 ms |
270076 KB |
Output is correct |
18 |
Incorrect |
136 ms |
270160 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |