oj.uz

답안 #241427

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
241427 2020-06-24T07:40:06 Z osaaateiasavtnl Long Distance Coach (JOI17_coach) C++17
71 / 100
 2000 ms 25104 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcountll
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC

const int N = 1e5+7;
struct SegTree {

int a[N];
void add(int l, int r, int x) {
    for (int i = l; i <= r; ++i)
        if (a[i] != -1)
            a[i] += x;
}
void ban(int l, int r) {
    for (int i = l; i <= r; ++i)
        a[i] = -1;        
}
int get(int l, int r) {
    int ans = -1;
    for (int i = l; i <= r; ++i)
        if (a[i] != -1)
            if (ans == -1 || ans > a[i])
                ans = a[i];
    return ans;
}   

} mag;

signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    #define endl '\n'
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif
    int x, n, m, w, t;
    cin >> x >> n >> m >> w >> t;
 
    //first - d, second - c
 
    vector <int> s(n);
    for (int i = 0; i < n; ++i) 
        cin >> s[i];
    sort(all(s));
    s.app(x);
 
    vector <ii> a(m);
    for (int i = 0; i < m; ++i) 
        cin >> a[i].f >> a[i].s;
 
    sort(all(a));
    reverse(all(a));
    a.insert(a.begin(), mp(0, 0));
 
    map <int, int> pos;
    for (int i = 0; i < a.size(); ++i)
        pos[a[i].f] = i;        
 
    vector <int> c;
    for (auto e : a)    
        c.app(e.f);
    sort(all(c));
 
    vector <int> last(s.size()), mem(a.size(), s.size());
    for (int i = 0; i < s.size(); ++i) {
        int p = lower_bound(all(c), s[i]%t) - c.begin();
        p = (p - 1 + c.size()) % c.size();
        last[i] = pos[c[p]];
        mem[last[i]] = min(mem[last[i]], i);
    }
    vector <int> dp(a.size()+1);
    dp[0] = (x/t+1)*w;
    mag.add(0, 0, dp[0]);
    const int INF = 1e9;
    vector <ii> lf;
    for (int j = 1; j <= a.size(); ++j) {
        if (mem[j-1] != s.size()) {
            auto add = mp(mem[j-1], j-1);
            while (lf.size() && add < lf.back()) {
                lf.pop_back();
            }   
            lf.app(add);
        }

        int l = 0;
        for (auto e : lf) {
            int lf = e.f;
            mag.add(l, e.s-1, a[j-1].s);
            if (s[lf] > a[j-1].f) {
                mag.add(l, e.s-1, (s[lf]/t+a[j-1].f/t+(s[lf]<a[j-1].f))*w);
            }
            l = e.s;
        }
        mag.ban(l, j - 2);

        int save = 0;
        if (j < a.size())
            save = (x/t+(a[j].f<=(x%t)))*w;
        int mn = mag.get(0, j - 1);
        if (mn != -1) {
            dp[j] = mn + save;
            mag.add(j, j, dp[j]);
        }
        else {
            dp[j] = -1;
            mag.ban(j, j);
        }
    }       

    cout << (int)dp[a.size()] << endl;
}

Compilation message

coach.cpp: In function 'int main()':
coach.cpp:65:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < a.size(); ++i)
                     ~~^~~~~~~~~~
coach.cpp:74:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); ++i) {
                     ~~^~~~~~~~~~
coach.cpp:85:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int j = 1; j <= a.size(); ++j) {
                     ~~^~~~~~~~~~~
coach.cpp:86:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (mem[j-1] != s.size()) {
coach.cpp:106:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (j < a.size())
             ~~^~~~~~~~~~
coach.cpp:83:15: warning: unused variable 'INF' [-Wunused-variable]
     const int INF = 1e9;
               ^~~

Subtask #1
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 22 ms 640 KB Output is correct
39 Correct 11 ms 640 KB Output is correct
40 Correct 12 ms 640 KB Output is correct
41 Correct 24 ms 640 KB Output is correct
42 Correct 24 ms 640 KB Output is correct
43 Correct 23 ms 640 KB Output is correct
44 Correct 29 ms 744 KB Output is correct
45 Correct 24 ms 640 KB Output is correct
46 Correct 11 ms 640 KB Output is correct
47 Correct 13 ms 768 KB Output is correct
48 Correct 22 ms 640 KB Output is correct
49 Correct 21 ms 640 KB Output is correct
50 Correct 22 ms 640 KB Output is correct
51 Correct 22 ms 640 KB Output is correct

Subtask #4
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 22 ms 640 KB Output is correct
39 Correct 11 ms 640 KB Output is correct
40 Correct 12 ms 640 KB Output is correct
41 Correct 24 ms 640 KB Output is correct
42 Correct 24 ms 640 KB Output is correct
43 Correct 23 ms 640 KB Output is correct
44 Correct 29 ms 744 KB Output is correct
45 Correct 24 ms 640 KB Output is correct
46 Correct 11 ms 640 KB Output is correct
47 Correct 13 ms 768 KB Output is correct
48 Correct 22 ms 640 KB Output is correct
49 Correct 21 ms 640 KB Output is correct
50 Correct 22 ms 640 KB Output is correct
51 Correct 22 ms 640 KB Output is correct
52 Execution timed out 2078 ms 25104 KB Time limit exceeded
53 Halted 0 ms 0 KB -