oj.uz

답안 #369158

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
369158 2021-02-20T15:34:21 Z wiwiho Collecting Stamps 3 (JOI20_ho_t3) C++14
15 / 100
 229 ms 129260 KB 
#include <bits/stdc++.h>
#include <bits/extc++.h>

#define StarBurstStream ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define iter(a) a.begin(), a.end()
#define riter(a) a.rbegin(), a.rend()
#define lsort(a) sort(iter(a))
#define gsort(a) sort(riter(a))
#define pb(a) push_back(a)
#define eb(a) emplace_back(a)
#define pf(a) push_front(a)
#define ef(a) emplace_front(a)
#define pob pop_back()
#define pof pop_front()
#define mp(a, b) make_pair(a, b)
#define F first
#define S second
#define mt make_tuple
#define gt(t, i) get<i>(t)
#define iceil(a, b) (((a) + (b) - 1) / (b))
#define tomax(a, b) ((a) = max((a), (b)))
#define tomin(a, b) ((a) = min((a), (b)))
#define topos(a) ((a) = (((a) % MOD + MOD) % MOD))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define printv(a, b) {bool pvaspace=false; \
for(auto pva : a){ \
    if(pvaspace) b << " "; pvaspace=true;\
    b << pva;\
}\
b << "\n";}

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pdd = pair<ld, ld>;
using tiii = tuple<int, int, int>;

const ll MOD = 1000000007;
const ll MAX = 1LL << 60;

template<typename A, typename B>
ostream& operator<<(ostream& o, pair<A, B> p){
    return o << '(' << p.F << ',' << p.S << ')';
}

int n;
ll L;
vector<ll> x;

ll dis(int a, int b){
    if(a > b) swap(a, b);
    return min(x[b] - x[a], L - x[b] + x[a]);
}

int main(){
    StarBurstStream

    cin >> n >> L;
    x.resize(n + 1);
    for(int i = 1; i <= n; i++) cin >> x[i];
    vector<ll> t(n + 1);
    for(int i = 1; i <= n; i++) cin >> t[i];

    vector<vector<vector<ll>>> dpl(n + 1, vector<vector<ll>>(n + 1, vector<ll>(n + 1, MAX)));
    vector<vector<vector<ll>>> dpr(n + 1, vector<vector<ll>>(n + 1, vector<ll>(n + 1, MAX)));
    dpl[0][0][0] = 0;
    dpr[0][0][0] = 0;

    for(int len = 0; len <= n; len++){
        for(int l = 0; l <= n; l++){
            int r = (l + len) % (n + 1);
            if(l < r && l != 0) continue;

            int tl = (l + 1) % (n + 1);
            int tr = (r - 1 + n + 1) % (n + 1);

            for(int k = 0; k <= n; k++){
                if(dpl[tl][r][k - 1] + dis(tl, l) <= t[l]) dpl[l][r][k] = min(dpl[l][r][k], dpl[tl][r][k - 1] + dis(tl, l));
                if(dpr[tl][r][k - 1] + dis(r, l) <= t[l]) dpl[l][r][k] = min(dpl[l][r][k], dpr[tl][r][k - 1] + dis(r, l));
                dpl[l][r][k] = min({dpl[l][r][k], dpl[tl][r][k] + dis(tl, l), dpr[tl][r][k] + dis(r, l)});

                if(dpl[l][tr][k - 1] + dis(l, r) <= t[r]) dpr[l][r][k] = min(dpr[l][r][k], dpl[l][tr][k - 1] + dis(l, r));
                if(dpr[l][tr][k - 1] + dis(tr, r) <= t[r]) dpr[l][r][k] = min(dpr[l][r][k], dpr[l][tr][k - 1] + dis(tr, r));
                dpr[l][r][k] = min({dpr[l][r][k], dpl[l][tr][k] + dis(l, r), dpr[l][tr][k] + dis(tr, r)});
            }
        }
    }

//    for(int i = 0; i <= n; i++){
//        for(int j = 0; j <= n; j++){
//            cerr << i << " " << j << "\n";
//            printv(dpl[i][j], cerr);
//            printv(dpr[i][j], cerr);
//        }
//    }

    int ans = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 0; j <= n; j++){
            for(int k = 0; k <= n; k++){
                if(dpl[j][k][i] < MAX || dpr[j][k][i] < MAX) ans = i;
            }
        }
    }
    cout << ans << "\n";

    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 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 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 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 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Incorrect 1 ms 364 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 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 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 153 ms 94444 KB Output is correct
19 Correct 67 ms 45036 KB Output is correct
20 Correct 24 ms 17900 KB Output is correct
21 Correct 61 ms 41324 KB Output is correct
22 Correct 90 ms 60396 KB Output is correct
23 Correct 22 ms 14060 KB Output is correct
24 Correct 13 ms 9836 KB Output is correct
25 Correct 20 ms 13548 KB Output is correct
26 Correct 4 ms 3436 KB Output is correct
27 Correct 20 ms 14444 KB Output is correct
28 Correct 12 ms 8940 KB Output is correct
29 Correct 21 ms 14956 KB Output is correct
30 Correct 15 ms 10476 KB Output is correct
31 Correct 19 ms 13548 KB Output is correct
32 Correct 7 ms 5356 KB Output is correct
33 Correct 19 ms 13548 KB Output is correct
34 Correct 4 ms 3180 KB Output is correct
35 Correct 21 ms 13292 KB Output is correct
36 Correct 6 ms 4588 KB Output is correct
37 Correct 20 ms 14444 KB Output is correct
38 Correct 8 ms 6124 KB Output is correct
39 Correct 22 ms 15340 KB Output is correct
40 Correct 12 ms 7148 KB Output is correct
41 Correct 229 ms 129260 KB Output is correct
42 Correct 122 ms 71808 KB Output is correct
43 Correct 217 ms 129004 KB Output is correct
44 Correct 111 ms 69996 KB Output is correct
45 Correct 223 ms 129152 KB Output is correct
46 Correct 114 ms 71660 KB Output is correct

Subtask #4
0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 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 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Incorrect 1 ms 364 KB Output isn't correct
25 Halted 0 ms 0 KB -