#include <bits/stdc++.h>
using namespace std;
#define int long long
const int INF = 1e18;
const int MAXN = 201;
int minTime[MAXN][MAXN][MAXN][2];
signed main(void)
{
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
for (int nbPref = 0; nbPref < MAXN; ++nbPref)
for (int nbSuff = 0; nbSuff < MAXN; ++nbSuff)
for (int nbPris = 0; nbPris < MAXN; ++nbPris)
for (int pos = 0; pos < 2; ++pos)
minTime[nbPref][nbSuff][nbPris][pos] = INF;
int nbStamps, longueur;
cin >> nbStamps >> longueur;
vector<int> positions(nbStamps);
vector<int> tempsMax(nbStamps);
for (auto &v : positions)
cin >> v;
for (auto &v : tempsMax)
cin >> v;
positions.insert(positions.begin(), 0);
tempsMax.insert(tempsMax.begin(), INF);
minTime[0][0][0][0] = 0;
int sol = 0;
for (int nbPref = 0; nbPref <= nbStamps; ++nbPref)
for (int nbSuff = 0; nbSuff <= nbStamps; ++nbSuff)
for (int nbPris = 0; nbPris <= nbStamps; ++nbPris)
for (int iPos(0); iPos < 2; ++iPos)
if (minTime[nbPref][nbSuff][nbPris][iPos] < INF)
{
sol = max(sol, nbPris);
int temps = minTime[nbPref][nbSuff][nbPris][iPos];
//cout << nbPref << ' ' << nbSuff << ' ' << nbPris << ' ' << iPos << ' ' << temps << endl;
if (nbPref + 1 + nbSuff > nbStamps) continue;
if (!iPos)
{
int nxtTemps = temps + positions[nbPref+1] - positions[nbPref];
int nxtPris = nbPris + (nxtTemps <= tempsMax[nbPref+1]);
minTime[nbPref+1][nbSuff][nxtPris][0] =
min(minTime[nbPref+1][nbSuff][nxtPris][0], nxtTemps);
nxtTemps = temps + positions[nbPref] + (longueur - positions[nbStamps - nbSuff]);
nxtPris = nbPris + (nxtTemps <= tempsMax[nbStamps-nbSuff]);
minTime[nbPref][nbSuff+1][nxtPris][1] =
min(minTime[nbPref][nbSuff+1][nxtPris][1], nxtTemps);
}
else if (nbSuff)
{
int nxtTemps = temps + positions[nbStamps-nbSuff+1]
- positions[nbStamps-nbSuff];
int nxtPris = nbPris + (nxtTemps <= tempsMax[nbStamps-nbSuff]);
minTime[nbPref][nbSuff+1][nxtPris][1] =
min(minTime[nbPref][nbSuff+1][nxtPris][1], nxtTemps);
nxtTemps = temps + (longueur - positions[nbStamps-nbSuff+1])
+ positions[nbPref+1];
nxtPris = nbPris + (nxtTemps <= tempsMax[nbPref+1]);
minTime[nbPref+1][nbSuff][nxtPris][0] =
min(minTime[nbPref+1][nbSuff][nxtPris][0], nxtTemps);
}
}
cout << sol << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 2 |
Correct |
72 ms |
127468 KB |
Output is correct |
| 3 |
Correct |
76 ms |
127468 KB |
Output is correct |
| 4 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 5 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 6 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 7 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 8 |
Correct |
69 ms |
127596 KB |
Output is correct |
| 9 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 10 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 11 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 12 |
Correct |
68 ms |
127472 KB |
Output is correct |
| 13 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 14 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 15 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 16 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 17 |
Correct |
69 ms |
127468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 2 |
Correct |
72 ms |
127468 KB |
Output is correct |
| 3 |
Correct |
76 ms |
127468 KB |
Output is correct |
| 4 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 5 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 6 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 7 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 8 |
Correct |
69 ms |
127596 KB |
Output is correct |
| 9 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 10 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 11 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 12 |
Correct |
68 ms |
127472 KB |
Output is correct |
| 13 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 14 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 15 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 16 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 17 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 18 |
Correct |
74 ms |
127596 KB |
Output is correct |
| 19 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 20 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 21 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 22 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 23 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 24 |
Correct |
79 ms |
127468 KB |
Output is correct |
| 25 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 26 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 27 |
Correct |
70 ms |
127596 KB |
Output is correct |
| 28 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 29 |
Correct |
71 ms |
127468 KB |
Output is correct |
| 30 |
Correct |
70 ms |
127596 KB |
Output is correct |
| 31 |
Correct |
79 ms |
127468 KB |
Output is correct |
| 32 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 33 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 34 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 35 |
Correct |
69 ms |
127468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 2 |
Correct |
72 ms |
127468 KB |
Output is correct |
| 3 |
Correct |
76 ms |
127468 KB |
Output is correct |
| 4 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 5 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 6 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 7 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 8 |
Correct |
69 ms |
127596 KB |
Output is correct |
| 9 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 10 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 11 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 12 |
Correct |
68 ms |
127472 KB |
Output is correct |
| 13 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 14 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 15 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 16 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 17 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 18 |
Correct |
121 ms |
127468 KB |
Output is correct |
| 19 |
Correct |
96 ms |
127596 KB |
Output is correct |
| 20 |
Correct |
81 ms |
127596 KB |
Output is correct |
| 21 |
Correct |
91 ms |
127468 KB |
Output is correct |
| 22 |
Correct |
104 ms |
127468 KB |
Output is correct |
| 23 |
Correct |
92 ms |
127616 KB |
Output is correct |
| 24 |
Correct |
75 ms |
127468 KB |
Output is correct |
| 25 |
Correct |
79 ms |
127468 KB |
Output is correct |
| 26 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 27 |
Correct |
78 ms |
127416 KB |
Output is correct |
| 28 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 29 |
Correct |
80 ms |
127724 KB |
Output is correct |
| 30 |
Correct |
75 ms |
127572 KB |
Output is correct |
| 31 |
Correct |
86 ms |
127468 KB |
Output is correct |
| 32 |
Correct |
74 ms |
127596 KB |
Output is correct |
| 33 |
Correct |
78 ms |
127596 KB |
Output is correct |
| 34 |
Correct |
72 ms |
127468 KB |
Output is correct |
| 35 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 36 |
Correct |
72 ms |
127456 KB |
Output is correct |
| 37 |
Correct |
79 ms |
127596 KB |
Output is correct |
| 38 |
Correct |
71 ms |
127468 KB |
Output is correct |
| 39 |
Correct |
75 ms |
127468 KB |
Output is correct |
| 40 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 41 |
Correct |
143 ms |
127596 KB |
Output is correct |
| 42 |
Correct |
98 ms |
127468 KB |
Output is correct |
| 43 |
Correct |
153 ms |
127596 KB |
Output is correct |
| 44 |
Correct |
92 ms |
127468 KB |
Output is correct |
| 45 |
Correct |
141 ms |
127468 KB |
Output is correct |
| 46 |
Correct |
91 ms |
127596 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 2 |
Correct |
72 ms |
127468 KB |
Output is correct |
| 3 |
Correct |
76 ms |
127468 KB |
Output is correct |
| 4 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 5 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 6 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 7 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 8 |
Correct |
69 ms |
127596 KB |
Output is correct |
| 9 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 10 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 11 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 12 |
Correct |
68 ms |
127472 KB |
Output is correct |
| 13 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 14 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 15 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 16 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 17 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 18 |
Correct |
74 ms |
127596 KB |
Output is correct |
| 19 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 20 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 21 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 22 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 23 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 24 |
Correct |
79 ms |
127468 KB |
Output is correct |
| 25 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 26 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 27 |
Correct |
70 ms |
127596 KB |
Output is correct |
| 28 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 29 |
Correct |
71 ms |
127468 KB |
Output is correct |
| 30 |
Correct |
70 ms |
127596 KB |
Output is correct |
| 31 |
Correct |
79 ms |
127468 KB |
Output is correct |
| 32 |
Correct |
68 ms |
127468 KB |
Output is correct |
| 33 |
Correct |
67 ms |
127468 KB |
Output is correct |
| 34 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 35 |
Correct |
69 ms |
127468 KB |
Output is correct |
| 36 |
Correct |
121 ms |
127468 KB |
Output is correct |
| 37 |
Correct |
96 ms |
127596 KB |
Output is correct |
| 38 |
Correct |
81 ms |
127596 KB |
Output is correct |
| 39 |
Correct |
91 ms |
127468 KB |
Output is correct |
| 40 |
Correct |
104 ms |
127468 KB |
Output is correct |
| 41 |
Correct |
92 ms |
127616 KB |
Output is correct |
| 42 |
Correct |
75 ms |
127468 KB |
Output is correct |
| 43 |
Correct |
79 ms |
127468 KB |
Output is correct |
| 44 |
Correct |
70 ms |
127468 KB |
Output is correct |
| 45 |
Correct |
78 ms |
127416 KB |
Output is correct |
| 46 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 47 |
Correct |
80 ms |
127724 KB |
Output is correct |
| 48 |
Correct |
75 ms |
127572 KB |
Output is correct |
| 49 |
Correct |
86 ms |
127468 KB |
Output is correct |
| 50 |
Correct |
74 ms |
127596 KB |
Output is correct |
| 51 |
Correct |
78 ms |
127596 KB |
Output is correct |
| 52 |
Correct |
72 ms |
127468 KB |
Output is correct |
| 53 |
Correct |
74 ms |
127468 KB |
Output is correct |
| 54 |
Correct |
72 ms |
127456 KB |
Output is correct |
| 55 |
Correct |
79 ms |
127596 KB |
Output is correct |
| 56 |
Correct |
71 ms |
127468 KB |
Output is correct |
| 57 |
Correct |
75 ms |
127468 KB |
Output is correct |
| 58 |
Correct |
73 ms |
127468 KB |
Output is correct |
| 59 |
Correct |
143 ms |
127596 KB |
Output is correct |
| 60 |
Correct |
98 ms |
127468 KB |
Output is correct |
| 61 |
Correct |
153 ms |
127596 KB |
Output is correct |
| 62 |
Correct |
92 ms |
127468 KB |
Output is correct |
| 63 |
Correct |
141 ms |
127468 KB |
Output is correct |
| 64 |
Correct |
91 ms |
127596 KB |
Output is correct |
| 65 |
Correct |
127 ms |
127468 KB |
Output is correct |
| 66 |
Correct |
123 ms |
127468 KB |
Output is correct |
| 67 |
Correct |
120 ms |
127724 KB |
Output is correct |
| 68 |
Correct |
112 ms |
127468 KB |
Output is correct |
| 69 |
Correct |
128 ms |
127468 KB |
Output is correct |
| 70 |
Correct |
130 ms |
127468 KB |
Output is correct |
| 71 |
Correct |
122 ms |
127468 KB |
Output is correct |
| 72 |
Correct |
141 ms |
127596 KB |
Output is correct |
| 73 |
Correct |
111 ms |
127468 KB |
Output is correct |
| 74 |
Correct |
120 ms |
127468 KB |
Output is correct |
| 75 |
Correct |
119 ms |
127468 KB |
Output is correct |
| 76 |
Correct |
139 ms |
127468 KB |
Output is correct |
| 77 |
Correct |
132 ms |
127468 KB |
Output is correct |
| 78 |
Correct |
115 ms |
127468 KB |
Output is correct |
| 79 |
Correct |
116 ms |
127468 KB |
Output is correct |
| 80 |
Correct |
137 ms |
127468 KB |
Output is correct |
| 81 |
Correct |
119 ms |
127468 KB |
Output is correct |
| 82 |
Correct |
112 ms |
127536 KB |
Output is correct |
| 83 |
Correct |
136 ms |
127468 KB |
Output is correct |
| 84 |
Correct |
116 ms |
127596 KB |
Output is correct |
| 85 |
Correct |
121 ms |
127596 KB |
Output is correct |
| 86 |
Correct |
120 ms |
127468 KB |
Output is correct |
| 87 |
Correct |
129 ms |
127596 KB |
Output is correct |
| 88 |
Correct |
148 ms |
127596 KB |
Output is correct |
| 89 |
Correct |
142 ms |
127468 KB |
Output is correct |
| 90 |
Correct |
101 ms |
127536 KB |
Output is correct |
| 91 |
Correct |
148 ms |
127596 KB |
Output is correct |
| 92 |
Correct |
143 ms |
127468 KB |
Output is correct |
| 93 |
Correct |
109 ms |
127468 KB |
Output is correct |
