답안 #54219 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
54219	2018-07-02T20:51:12 Z	ksun48	Long Distance Coach (JOI17_coach)	C++14	71 / 100	2000 ms	13412 KB

coach

#include <bits/stdc++.h>
typedef long long LL;
using namespace std;

LL cnt(LL m, LL a, LL b, LL T){
	a -= m;
	b -= m;
	if(b < 0) return 0;
	a = max(a, 0LL);
	b = max(b, 0LL);
	LL f = (a+T-1)/T;
	LL g = (b)/T;
	return max(g-f+1, 0LL);
}

int main(){
	cin.sync_with_stdio(0); cin.tie(0);
	LL X, N, M, W, T;
	cin >> X >> N >> M >> W >> T;
	// X = total duration
	// N = # stops
	// M = # passenges
	vector<LL> stop;
	stop.push_back(0);
	for(LL i = 0; i < N; i++){
		LL s;
		cin >> s;
		stop.push_back(s);
	}
	stop.push_back(X);
	sort(stop.begin(), stop.end());

	// W = cost
	vector<pair<LL,LL> > times;

	for(LL i = 0; i < M; i++){
		LL d, c;
		cin >> d >> c;
		times.push_back({d,c});
	}
	sort(times.begin(), times.end());

	vector<LL> t;
	vector<LL> refundcost;
	t.push_back(0);
	refundcost.push_back(0); // but you must always feed the driver
	LL totalrefundcost = 0;
	for(int i = 0; i < M; i++){
		t.push_back(times[i].first);
		refundcost.push_back(times[i].second);
		totalrefundcost += times[i].second;
	}
	t.push_back(T);
	refundcost.push_back(0); // should not use this result
	vector<LL> dp(refundcost.size(), W*(X+1));
	dp[0] = 0;
	vector<LL> minstopindex(refundcost.size(), stop.size());
	for(LL r = 1; r < stop.size(); r++){
		LL R = stop[r];
		for(int i = 0; i < t.size(); i++){
			if(t[i] < (R % T) && (R % T) < t[i+1]){
				minstopindex[i] = min(minstopindex[i], r);
				break;
			}
		}
	}
	for(int j = 1; j < refundcost.size(); j++){
		LL cost = 0;
		LL idx = stop.size();
		for(int i = j-1; i >= 0; i--){
			dp[j] = min(dp[j], dp[i] + W * cnt(t[i], 0, X, T) + cost - refundcost[i]);
			idx = min(idx, minstopindex[i]);
			if(idx == stop.size()){
				cost += W * cnt(t[i], 0, X, T);
			} else {
				cost += W * (cnt(t[i], 0, stop[idx], T) - 1);
			}
		}
	}
	// T = time delay
	cout << dp[refundcost.size()-1] + totalrefundcost << '\n';
}

Compilation message

coach.cpp: In function 'int main()':
coach.cpp:58:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(LL r = 1; r < stop.size(); r++){
                ~~^~~~~~~~~~~~~
coach.cpp:60:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < t.size(); i++){
                  ~~^~~~~~~~~~
coach.cpp:67:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int j = 1; j < refundcost.size(); j++){
                 ~~^~~~~~~~~~~~~~~~~~~
coach.cpp:73:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(idx == stop.size()){
       ~~~~^~~~~~~~~~~~~~

Subtask #1
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	2 ms	512 KB	Output is correct
5	Correct	3 ms	520 KB	Output is correct
6	Correct	2 ms	520 KB	Output is correct
7	Correct	3 ms	520 KB	Output is correct
8	Correct	2 ms	520 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	2 ms	564 KB	Output is correct
11	Correct	2 ms	596 KB	Output is correct
12	Correct	3 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	2 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	3 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct

Subtask #2
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	2 ms	512 KB	Output is correct
5	Correct	3 ms	520 KB	Output is correct
6	Correct	2 ms	520 KB	Output is correct
7	Correct	3 ms	520 KB	Output is correct
8	Correct	2 ms	520 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	2 ms	564 KB	Output is correct
11	Correct	2 ms	596 KB	Output is correct
12	Correct	3 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	2 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	3 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	620 KB	Output is correct
24	Correct	2 ms	736 KB	Output is correct
25	Correct	2 ms	736 KB	Output is correct
26	Correct	2 ms	736 KB	Output is correct
27	Correct	2 ms	736 KB	Output is correct
28	Correct	2 ms	736 KB	Output is correct
29	Correct	2 ms	736 KB	Output is correct
30	Correct	3 ms	736 KB	Output is correct
31	Correct	2 ms	736 KB	Output is correct
32	Correct	3 ms	736 KB	Output is correct
33	Correct	2 ms	736 KB	Output is correct
34	Correct	2 ms	736 KB	Output is correct
35	Correct	2 ms	736 KB	Output is correct
36	Correct	2 ms	736 KB	Output is correct
37	Correct	2 ms	736 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	2 ms	512 KB	Output is correct
5	Correct	3 ms	520 KB	Output is correct
6	Correct	2 ms	520 KB	Output is correct
7	Correct	3 ms	520 KB	Output is correct
8	Correct	2 ms	520 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	2 ms	564 KB	Output is correct
11	Correct	2 ms	596 KB	Output is correct
12	Correct	3 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	2 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	3 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	620 KB	Output is correct
24	Correct	2 ms	736 KB	Output is correct
25	Correct	2 ms	736 KB	Output is correct
26	Correct	2 ms	736 KB	Output is correct
27	Correct	2 ms	736 KB	Output is correct
28	Correct	2 ms	736 KB	Output is correct
29	Correct	2 ms	736 KB	Output is correct
30	Correct	3 ms	736 KB	Output is correct
31	Correct	2 ms	736 KB	Output is correct
32	Correct	3 ms	736 KB	Output is correct
33	Correct	2 ms	736 KB	Output is correct
34	Correct	2 ms	736 KB	Output is correct
35	Correct	2 ms	736 KB	Output is correct
36	Correct	2 ms	736 KB	Output is correct
37	Correct	2 ms	736 KB	Output is correct
38	Correct	111 ms	736 KB	Output is correct
39	Correct	136 ms	736 KB	Output is correct
40	Correct	119 ms	756 KB	Output is correct
41	Correct	111 ms	764 KB	Output is correct
42	Correct	111 ms	764 KB	Output is correct
43	Correct	110 ms	764 KB	Output is correct
44	Correct	112 ms	764 KB	Output is correct
45	Correct	111 ms	764 KB	Output is correct
46	Correct	111 ms	764 KB	Output is correct
47	Correct	112 ms	764 KB	Output is correct
48	Correct	112 ms	768 KB	Output is correct
49	Correct	111 ms	768 KB	Output is correct
50	Correct	112 ms	768 KB	Output is correct
51	Correct	115 ms	768 KB	Output is correct

Subtask #4
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	2 ms	512 KB	Output is correct
5	Correct	3 ms	520 KB	Output is correct
6	Correct	2 ms	520 KB	Output is correct
7	Correct	3 ms	520 KB	Output is correct
8	Correct	2 ms	520 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	2 ms	564 KB	Output is correct
11	Correct	2 ms	596 KB	Output is correct
12	Correct	3 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	2 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	3 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	620 KB	Output is correct
24	Correct	2 ms	736 KB	Output is correct
25	Correct	2 ms	736 KB	Output is correct
26	Correct	2 ms	736 KB	Output is correct
27	Correct	2 ms	736 KB	Output is correct
28	Correct	2 ms	736 KB	Output is correct
29	Correct	2 ms	736 KB	Output is correct
30	Correct	3 ms	736 KB	Output is correct
31	Correct	2 ms	736 KB	Output is correct
32	Correct	3 ms	736 KB	Output is correct
33	Correct	2 ms	736 KB	Output is correct
34	Correct	2 ms	736 KB	Output is correct
35	Correct	2 ms	736 KB	Output is correct
36	Correct	2 ms	736 KB	Output is correct
37	Correct	2 ms	736 KB	Output is correct
38	Correct	111 ms	736 KB	Output is correct
39	Correct	136 ms	736 KB	Output is correct
40	Correct	119 ms	756 KB	Output is correct
41	Correct	111 ms	764 KB	Output is correct
42	Correct	111 ms	764 KB	Output is correct
43	Correct	110 ms	764 KB	Output is correct
44	Correct	112 ms	764 KB	Output is correct
45	Correct	111 ms	764 KB	Output is correct
46	Correct	111 ms	764 KB	Output is correct
47	Correct	112 ms	764 KB	Output is correct
48	Correct	112 ms	768 KB	Output is correct
49	Correct	111 ms	768 KB	Output is correct
50	Correct	112 ms	768 KB	Output is correct
51	Correct	115 ms	768 KB	Output is correct
52	Execution timed out	2050 ms	13412 KB	Time limit exceeded
53	Halted	0 ms	0 KB	-

답안 #54219

Compilation message

Subtask #1 16.0 / 16.0

Subtask #2 30.0 / 30.0

Subtask #3 25.0 / 25.0

Subtask #4 0 / 29.0

Subtask #1
16.0 / 16.0

Subtask #2
30.0 / 30.0

Subtask #3
25.0 / 25.0

Subtask #4
0 / 29.0