oj.uz

Submission #361195

# Submission time Handle Problem Language Result Execution time Memory
361195 2021-01-28T14:26:41 Z HoneyBadger Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 80 ms 65260 KB 
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <vector>
#include <bitset>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <utility>
#include <algorithm>
#include <random>
#include <cmath>
#include <cassert>
#include <climits>
#include <ctime>
#include <chrono>


/*
#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,tune=native")
*/


#ifdef LOCAL
    #define dbg(x) cout << #x << " : " << x << endl;
#else
    #define dbg(x)
#endif

#define int long long
#define pb push_back
#define ppb pop_back()
#define mp make_pair
#define fi(a, b) for (int i = a; i < b; i++)
#define fj(a, b) for (int j = a; j < b; j++)
#define fk(a, b) for (int k = a; k < b; k++)
#define fi1(a, b) for (int i = a - 1; i >= b; i--)
#define fj1(a, b) for (int j = a - 1; j >= b; j--)
#define fk1(a, b) for (int k = a - 1; k >= b; k--)
#define fx(x, a) for (auto& x : a)
#define rep(i, a, b) for (int i = a; i < b; ++i)
#define rep1(i, a, b) for (int i = a - 1; i >= b; --i)
#define siz(x) (int)x.size()
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()

using namespace std;

template<typename T1, typename T2>inline void mine(T1 &x, const T2 &y) { if (y < x) x = y; }
template<typename T1, typename T2>inline void maxe(T1 &x, const T2 &y) { if (x < y) x = y; }

ostream& operator << (ostream &out, const vector<int> &b) {
    for (auto k : b) out << k << ' ';
    return out;
}

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef char ch;
typedef string str;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pii> vpii;
typedef vector<vpii> vvpii;
typedef vector<ch> vch;
typedef vector<vch> vvch;
typedef vector<str> vs;



const int MOD = 1000000007;
const int INF = 1000000050;
const long long BIG = (long long)2e18 + 50;
const double EPS = 1e-9;


mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int xa[201];
int xb[201];
int ta[201];
int tb[201];
int dp[201][201][201][2];

int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int n, l;
    cin >> n >> l;
    for (int i = 0; i < n; ++i) {
    	int x;
    	cin >> x;
    	xb[i + 1] = x;
    	xa[n - i] = l - x;
    }
    for (int i = 0; i < n; ++i) {
    	int t;
    	cin >> t;
    	tb[i + 1] = t;
    	ta[n - i] = t;
    }
    for (int a = 0; a <= n; ++a) {
    	for (int b = 0; b + a <= n; ++b) {
    		for (int cnt = 0; cnt <= n; ++cnt) {
    			for (int ep = 0; ep < 2; ++ep) {
    				dp[a][b][cnt][ep] = BIG;
    			}
    		}
    	}
    }
    dp[0][0][0][1] = dp[0][0][0][0] = 0;
    for (int s = 0; s < n; ++s) {
    	for (int a = 0; a <= s; ++a) {
    		int b = s - a;
    		for (int cnt = 0; cnt <= s; ++cnt) {
	    		//ep = 0 - in a
    			int t2;
    			// a + 1
    			t2 = dp[a][b][cnt][0] + xa[a + 1] - xa[a];
    			mine(dp[a + 1][b][cnt + (t2 <= ta[a + 1])][0], t2); 
    			// b + 1
    			t2 = dp[a][b][cnt][0] + xa[a] + xb[b + 1];
    			mine(dp[a][b + 1][cnt + (t2 <= tb[b + 1])][1], t2);

	    		// ep = 1 - in b
    			// b + 1
	    		t2 = dp[a][b][cnt][1] + xb[b + 1] - xb[b];
	    		mine(dp[a][b + 1][cnt + (t2 <= tb[b + 1])][1], t2);
    			// a + 1
    			t2 = dp[a][b][cnt][1] + xb[b] + xa[a + 1];
    			mine(dp[a + 1][b][cnt + (t2 <= ta[a + 1])][0], t2);
    		}
    	}
    }
    for (int cnt = n; cnt >= 0; --cnt) {
    	for (int a = 0; a <= n; ++a) {
    		for (int b = max(0ll, cnt - a); a + b <= n; ++b) {
    			for (int ep = 0; ep < 2; ++ep) {
    				if (dp[a][b][cnt][ep] != BIG) {
    					cout << cnt << '\n';
    					exit(0);
    				}
    			}
    		}
    	}
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 620 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 620 KB Output is correct
9 Correct 1 ms 620 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 620 KB Output is correct
13 Correct 1 ms 620 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 620 KB Output is correct
17 Correct 1 ms 620 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 620 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 620 KB Output is correct
9 Correct 1 ms 620 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 620 KB Output is correct
13 Correct 1 ms 620 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 620 KB Output is correct
17 Correct 1 ms 620 KB Output is correct
18 Correct 1 ms 748 KB Output is correct
19 Correct 1 ms 620 KB Output is correct
20 Correct 1 ms 620 KB Output is correct
21 Correct 1 ms 748 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 1 ms 748 KB Output is correct
24 Correct 1 ms 748 KB Output is correct
25 Correct 1 ms 748 KB Output is correct
26 Correct 1 ms 748 KB Output is correct
27 Correct 1 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 748 KB Output is correct
30 Correct 1 ms 748 KB Output is correct
31 Correct 1 ms 748 KB Output is correct
32 Correct 1 ms 748 KB Output is correct
33 Correct 1 ms 748 KB Output is correct
34 Correct 1 ms 748 KB Output is correct
35 Correct 1 ms 748 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 620 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 620 KB Output is correct
9 Correct 1 ms 620 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 620 KB Output is correct
13 Correct 1 ms 620 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 620 KB Output is correct
17 Correct 1 ms 620 KB Output is correct
18 Correct 65 ms 52460 KB Output is correct
19 Correct 32 ms 31980 KB Output is correct
20 Correct 18 ms 17260 KB Output is correct
21 Correct 30 ms 30188 KB Output is correct
22 Correct 41 ms 39020 KB Output is correct
23 Correct 13 ms 14700 KB Output is correct
24 Correct 9 ms 11628 KB Output is correct
25 Correct 13 ms 14444 KB Output is correct
26 Correct 4 ms 5740 KB Output is correct
27 Correct 13 ms 14956 KB Output is correct
28 Correct 8 ms 10732 KB Output is correct
29 Correct 13 ms 15340 KB Output is correct
30 Correct 12 ms 12140 KB Output is correct
31 Correct 14 ms 14444 KB Output is correct
32 Correct 7 ms 7660 KB Output is correct
33 Correct 12 ms 14444 KB Output is correct
34 Correct 4 ms 5356 KB Output is correct
35 Correct 12 ms 14060 KB Output is correct
36 Correct 5 ms 6892 KB Output is correct
37 Correct 13 ms 14996 KB Output is correct
38 Correct 6 ms 8428 KB Output is correct
39 Correct 14 ms 15596 KB Output is correct
40 Correct 8 ms 9324 KB Output is correct
41 Correct 73 ms 64492 KB Output is correct
42 Correct 52 ms 43628 KB Output is correct
43 Correct 73 ms 64492 KB Output is correct
44 Correct 57 ms 43116 KB Output is correct
45 Correct 72 ms 64492 KB Output is correct
46 Correct 50 ms 43628 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 620 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 620 KB Output is correct
9 Correct 1 ms 620 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 620 KB Output is correct
13 Correct 1 ms 620 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 620 KB Output is correct
17 Correct 1 ms 620 KB Output is correct
18 Correct 1 ms 748 KB Output is correct
19 Correct 1 ms 620 KB Output is correct
20 Correct 1 ms 620 KB Output is correct
21 Correct 1 ms 748 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 1 ms 748 KB Output is correct
24 Correct 1 ms 748 KB Output is correct
25 Correct 1 ms 748 KB Output is correct
26 Correct 1 ms 748 KB Output is correct
27 Correct 1 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 748 KB Output is correct
30 Correct 1 ms 748 KB Output is correct
31 Correct 1 ms 748 KB Output is correct
32 Correct 1 ms 748 KB Output is correct
33 Correct 1 ms 748 KB Output is correct
34 Correct 1 ms 748 KB Output is correct
35 Correct 1 ms 748 KB Output is correct
36 Correct 65 ms 52460 KB Output is correct
37 Correct 32 ms 31980 KB Output is correct
38 Correct 18 ms 17260 KB Output is correct
39 Correct 30 ms 30188 KB Output is correct
40 Correct 41 ms 39020 KB Output is correct
41 Correct 13 ms 14700 KB Output is correct
42 Correct 9 ms 11628 KB Output is correct
43 Correct 13 ms 14444 KB Output is correct
44 Correct 4 ms 5740 KB Output is correct
45 Correct 13 ms 14956 KB Output is correct
46 Correct 8 ms 10732 KB Output is correct
47 Correct 13 ms 15340 KB Output is correct
48 Correct 12 ms 12140 KB Output is correct
49 Correct 14 ms 14444 KB Output is correct
50 Correct 7 ms 7660 KB Output is correct
51 Correct 12 ms 14444 KB Output is correct
52 Correct 4 ms 5356 KB Output is correct
53 Correct 12 ms 14060 KB Output is correct
54 Correct 5 ms 6892 KB Output is correct
55 Correct 13 ms 14996 KB Output is correct
56 Correct 6 ms 8428 KB Output is correct
57 Correct 14 ms 15596 KB Output is correct
58 Correct 8 ms 9324 KB Output is correct
59 Correct 73 ms 64492 KB Output is correct
60 Correct 52 ms 43628 KB Output is correct
61 Correct 73 ms 64492 KB Output is correct
62 Correct 57 ms 43116 KB Output is correct
63 Correct 72 ms 64492 KB Output is correct
64 Correct 50 ms 43628 KB Output is correct
65 Correct 67 ms 58368 KB Output is correct
66 Correct 64 ms 53484 KB Output is correct
67 Correct 63 ms 51308 KB Output is correct
68 Correct 54 ms 47340 KB Output is correct
69 Correct 66 ms 57708 KB Output is correct
70 Correct 69 ms 55276 KB Output is correct
71 Correct 62 ms 55916 KB Output is correct
72 Correct 64 ms 56684 KB Output is correct
73 Correct 55 ms 52332 KB Output is correct
74 Correct 53 ms 49004 KB Output is correct
75 Correct 60 ms 54124 KB Output is correct
76 Correct 72 ms 61932 KB Output is correct
77 Correct 80 ms 62080 KB Output is correct
78 Correct 51 ms 47852 KB Output is correct
79 Correct 65 ms 49516 KB Output is correct
80 Correct 68 ms 60780 KB Output is correct
81 Correct 56 ms 50028 KB Output is correct
82 Correct 60 ms 52972 KB Output is correct
83 Correct 78 ms 64492 KB Output is correct
84 Correct 64 ms 55276 KB Output is correct
85 Correct 66 ms 60140 KB Output is correct
86 Correct 76 ms 58988 KB Output is correct
87 Correct 64 ms 54124 KB Output is correct
88 Correct 80 ms 65132 KB Output is correct
89 Correct 73 ms 65132 KB Output is correct
90 Correct 79 ms 54764 KB Output is correct
91 Correct 77 ms 65132 KB Output is correct
92 Correct 77 ms 65260 KB Output is correct
93 Correct 80 ms 63852 KB Output is correct