답안 #289760

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
289760	2020-09-03T03:16:58 Z	wwdd	여행하는 상인 (APIO17_merchant)	C++14	100 / 100	119 ms	4344 KB

merchant

// i don't understand
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INFL = 2e18;
const int MN = 105;
const int MK = 1010;
ll am[MN][MN];
ll pr[MN][MN];
ll ro[MN][MN];
ll bro[MN][MK],slo[MN][MK];
int main() {
	ios::sync_with_stdio(0);cin.tie(0);
	ll n,m,ks;
	cin >> n >> m >> ks;
	for(int i=0;i<n;i++) {
		for(int j=0;j<n;j++) {
			am[i][j] = INFL;
		}
	}
	for(int i=0;i<n;i++) {
		for(int j=0;j<ks;j++) {
			cin >> bro[i][j] >> slo[i][j];
		}
	}
	for(int i=0;i<m;i++) {
		ll a,b,c;
		cin >> a >> b >> c;
		a--;b--;
		am[a][b] = c;
	}
	for(int k=0;k<n;k++) {
		for(int i=0;i<n;i++) {
			for(int j=0;j<n;j++) {
				am[i][j] = min(am[i][j],am[i][k]+am[k][j]);
			}
		}
	}
	memset(pr,0,sizeof(pr));
	for(int i=0;i<n;i++) {
		for(int j=0;j<n;j++) {
			for(int k=0;k<ks;k++) {
				if(slo[j][k] == -1) {continue;}
				if(bro[i][k] == -1) {continue;}
				pr[i][j] = max(pr[i][j],slo[j][k]-bro[i][k]);
			}
		}
	}
	ll st = 1,ed = 1e9+2;
	ll ls = 0;
	while(st <= ed) {
		ll md = (st+ed)/2;
		for(int i=0;i<n;i++) {
			for(int j=0;j<n;j++) {
				if(i == j) {
					ro[i][j] = -1;
				} else if(am[i][j] == INFL) {
					ro[i][j] = -INFL;
				} else {
					ro[i][j] = pr[i][j]-md*am[i][j];
				}
			}
		}
		for(int k=0;k<n;k++) {
			for(int i=0;i<n;i++) {
				for(int j=0;j<n;j++) {
					ro[i][j] = max(ro[i][j],ro[i][k]+ro[k][j]);
					ro[i][j] = min(ro[i][j],INFL);
				}
			}
		}
		bool lol = false;
		for(int i=0;i<n;i++) {
			if(ro[i][i] >= 0) {
				lol = true;break;
			}
		}
		if(lol) {
			ls = md;
			st = md+1;
		} else {
			ed = md-1;
		}
	}
	cout << ls << '\n';
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	92 ms	3544 KB	Output is correct
2	Correct	52 ms	1408 KB	Output is correct
3	Correct	54 ms	1408 KB	Output is correct
4	Correct	8 ms	896 KB	Output is correct
5	Correct	8 ms	896 KB	Output is correct
6	Correct	7 ms	896 KB	Output is correct
7	Correct	24 ms	1024 KB	Output is correct
8	Correct	1 ms	512 KB	Output is correct
9	Correct	23 ms	896 KB	Output is correct
10	Correct	8 ms	896 KB	Output is correct
11	Correct	8 ms	896 KB	Output is correct
12	Correct	1 ms	512 KB	Output is correct
13	Correct	19 ms	1024 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	896 KB	Output is correct
2	Correct	8 ms	896 KB	Output is correct
3	Correct	8 ms	896 KB	Output is correct
4	Correct	7 ms	896 KB	Output is correct
5	Correct	9 ms	1024 KB	Output is correct
6	Correct	1 ms	416 KB	Output is correct
7	Correct	8 ms	896 KB	Output is correct
8	Correct	8 ms	1024 KB	Output is correct
9	Correct	11 ms	896 KB	Output is correct
10	Correct	9 ms	896 KB	Output is correct
11	Correct	9 ms	1024 KB	Output is correct
12	Correct	12 ms	1024 KB	Output is correct
13	Correct	8 ms	896 KB	Output is correct
14	Correct	8 ms	896 KB	Output is correct
15	Correct	9 ms	1024 KB	Output is correct
16	Correct	8 ms	896 KB	Output is correct
17	Correct	8 ms	1024 KB	Output is correct
18	Correct	1 ms	512 KB	Output is correct
19	Correct	9 ms	1024 KB	Output is correct
20	Correct	9 ms	1024 KB	Output is correct
21	Correct	9 ms	1024 KB	Output is correct
22	Correct	10 ms	896 KB	Output is correct
23	Correct	8 ms	896 KB	Output is correct
24	Correct	7 ms	896 KB	Output is correct
25	Correct	24 ms	1024 KB	Output is correct
26	Correct	1 ms	512 KB	Output is correct
27	Correct	23 ms	896 KB	Output is correct
28	Correct	8 ms	896 KB	Output is correct
29	Correct	8 ms	896 KB	Output is correct
30	Correct	1 ms	512 KB	Output is correct
31	Correct	19 ms	1024 KB	Output is correct

Subtask #3
33.0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	56 ms	1664 KB	Output is correct
2	Correct	113 ms	3960 KB	Output is correct
3	Correct	119 ms	1536 KB	Output is correct
4	Correct	57 ms	1792 KB	Output is correct
5	Correct	57 ms	1792 KB	Output is correct
6	Correct	56 ms	1536 KB	Output is correct
7	Correct	8 ms	1024 KB	Output is correct
8	Correct	1 ms	512 KB	Output is correct
9	Correct	9 ms	1024 KB	Output is correct
10	Correct	9 ms	1024 KB	Output is correct
11	Correct	9 ms	1024 KB	Output is correct
12	Correct	10 ms	896 KB	Output is correct
13	Correct	8 ms	896 KB	Output is correct

Subtask #4
34.0 / 34.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	896 KB	Output is correct
2	Correct	8 ms	896 KB	Output is correct
3	Correct	8 ms	896 KB	Output is correct
4	Correct	7 ms	896 KB	Output is correct
5	Correct	9 ms	1024 KB	Output is correct
6	Correct	1 ms	416 KB	Output is correct
7	Correct	8 ms	896 KB	Output is correct
8	Correct	8 ms	1024 KB	Output is correct
9	Correct	11 ms	896 KB	Output is correct
10	Correct	9 ms	896 KB	Output is correct
11	Correct	9 ms	1024 KB	Output is correct
12	Correct	12 ms	1024 KB	Output is correct
13	Correct	8 ms	896 KB	Output is correct
14	Correct	8 ms	896 KB	Output is correct
15	Correct	9 ms	1024 KB	Output is correct
16	Correct	8 ms	896 KB	Output is correct
17	Correct	56 ms	1664 KB	Output is correct
18	Correct	113 ms	3960 KB	Output is correct
19	Correct	119 ms	1536 KB	Output is correct
20	Correct	57 ms	1792 KB	Output is correct
21	Correct	57 ms	1792 KB	Output is correct
22	Correct	56 ms	1536 KB	Output is correct
23	Correct	8 ms	1024 KB	Output is correct
24	Correct	1 ms	512 KB	Output is correct
25	Correct	9 ms	1024 KB	Output is correct
26	Correct	9 ms	1024 KB	Output is correct
27	Correct	9 ms	1024 KB	Output is correct
28	Correct	10 ms	896 KB	Output is correct
29	Correct	8 ms	896 KB	Output is correct
30	Correct	51 ms	1408 KB	Output is correct
31	Correct	55 ms	1664 KB	Output is correct
32	Correct	71 ms	2680 KB	Output is correct
33	Correct	52 ms	1536 KB	Output is correct
34	Correct	53 ms	1664 KB	Output is correct
35	Correct	53 ms	1664 KB	Output is correct
36	Correct	111 ms	4096 KB	Output is correct
37	Correct	1 ms	512 KB	Output is correct
38	Correct	1 ms	512 KB	Output is correct
39	Correct	77 ms	1528 KB	Output is correct
40	Correct	53 ms	1584 KB	Output is correct
41	Correct	52 ms	1536 KB	Output is correct
42	Correct	79 ms	1408 KB	Output is correct
43	Correct	52 ms	1408 KB	Output is correct
44	Correct	1 ms	512 KB	Output is correct
45	Correct	10 ms	1152 KB	Output is correct
46	Correct	10 ms	1152 KB	Output is correct
47	Correct	10 ms	1152 KB	Output is correct
48	Correct	117 ms	4344 KB	Output is correct
49	Correct	112 ms	4216 KB	Output is correct
50	Correct	1 ms	512 KB	Output is correct
51	Correct	92 ms	3544 KB	Output is correct
52	Correct	52 ms	1408 KB	Output is correct
53	Correct	54 ms	1408 KB	Output is correct
54	Correct	8 ms	896 KB	Output is correct
55	Correct	8 ms	896 KB	Output is correct
56	Correct	7 ms	896 KB	Output is correct
57	Correct	24 ms	1024 KB	Output is correct
58	Correct	1 ms	512 KB	Output is correct
59	Correct	23 ms	896 KB	Output is correct
60	Correct	8 ms	896 KB	Output is correct
61	Correct	8 ms	896 KB	Output is correct
62	Correct	1 ms	512 KB	Output is correct
63	Correct	19 ms	1024 KB	Output is correct

답안 #289760

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 21.0 / 21.0

Subtask #3 33.0 / 33.0

Subtask #4 34.0 / 34.0

Subtask #1
12.0 / 12.0

Subtask #2
21.0 / 21.0

Subtask #3
33.0 / 33.0

Subtask #4
34.0 / 34.0