답안 #263439

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
263439	2020-08-13T17:02:24 Z	shayan_p	여행하는 상인 (APIO17_merchant)	C++14	100 / 100	115 ms	1448 KB

merchant

// And you curse yourself for things you never done

#include<bits/stdc++.h>

#define F first
#define S second
#define PB push_back
#define sz(s) int((s).size())
#define bit(n,k) (((n)>>(k))&1)

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

const int maxn = 110, maxk = 1010, mod = 1e9 + 7, big = 1e9 + 10;
const ll inf = 4e18;

pii p[maxn][maxk];
ll d[maxn][maxn], dd[maxn][maxn], g[maxn][maxn];
int n;

bool floyd(ll a[][maxn]){    
    for(int i = 0; i < n; i++)
	for(int j = 0; j < n; j++)
	    for(int k = 0; k < n; k++)
		a[j][k] = min(a[j][k], a[j][i] + a[i][k]);
    for(int i = 0; i < n; i++)
	if(a[i][i] <= 0)
	    return 1;
    return 0;
}

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

    int m, k;
    cin >> n >> m >> k;
    for(int i = 0; i < n; i++){
	for(int j = 0; j < k; j++){
	    cin >> p[i][j].F >> p[i][j].S;
	}
    }
    for(int i = 0; i < n; i++){
	for(int j = 0; j < n; j++)
	    d[i][j] = inf;
	d[i][i] = 0;
    }
    for(int i = 0; i < m; i++){
	int a, b, c;
	cin >> a >> b >> c;
	--a, --b;
	d[a][b] = min(d[a][b], ll(c));
    }
    floyd(d);
    for(int i = 0; i < n; i++){
	for(int j = 0; j < n; j++){
	    if(d[i][j] != inf){
		for(int w = 0; w < k; w++){
		    if(p[i][w].F < p[j][w].S && p[i][w].F != -1 && p[j][w].S != -1)
			dd[i][j] = max(dd[i][j], ll(p[j][w].S - p[i][w].F));
		}
	    }
	}
    }
    
    for(int i = 0; i < n; i++)
	for(int j = 0; j < n; j++)
	    assert(d[i][j] == inf || d[i][j] <= big), assert(dd[i][j] <= big);
    
    int l = 0, r = big;
    while(r-l > 1){
	int mid = (l+r) >> 1;
	for(int i = 0; i < n; i++)
	    for(int j = 0; j < n; j++)
		g[i][j] = (d[i][j] == inf || i == j) ? (inf) : (1ll * mid * d[i][j] - dd[i][j]);
	if(floyd(g))
	    l = mid;
	else
	    r = mid;
    }
    assert(r != big);
    return cout << l << endl, 0;
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	66 ms	1272 KB	Output is correct
2	Correct	37 ms	968 KB	Output is correct
3	Correct	36 ms	896 KB	Output is correct
4	Correct	7 ms	640 KB	Output is correct
5	Correct	6 ms	640 KB	Output is correct
6	Correct	5 ms	640 KB	Output is correct
7	Correct	6 ms	640 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	6 ms	640 KB	Output is correct
10	Correct	6 ms	640 KB	Output is correct
11	Correct	7 ms	640 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	6 ms	640 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	640 KB	Output is correct
2	Correct	6 ms	640 KB	Output is correct
3	Correct	7 ms	640 KB	Output is correct
4	Correct	6 ms	640 KB	Output is correct
5	Correct	6 ms	640 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	6 ms	640 KB	Output is correct
8	Correct	6 ms	640 KB	Output is correct
9	Correct	7 ms	640 KB	Output is correct
10	Correct	6 ms	640 KB	Output is correct
11	Correct	6 ms	640 KB	Output is correct
12	Correct	7 ms	640 KB	Output is correct
13	Correct	6 ms	640 KB	Output is correct
14	Correct	6 ms	640 KB	Output is correct
15	Correct	7 ms	640 KB	Output is correct
16	Correct	6 ms	640 KB	Output is correct
17	Correct	7 ms	640 KB	Output is correct
18	Correct	0 ms	384 KB	Output is correct
19	Correct	9 ms	640 KB	Output is correct
20	Correct	7 ms	640 KB	Output is correct
21	Correct	8 ms	640 KB	Output is correct
22	Correct	8 ms	640 KB	Output is correct
23	Correct	6 ms	640 KB	Output is correct
24	Correct	5 ms	640 KB	Output is correct
25	Correct	6 ms	640 KB	Output is correct
26	Correct	0 ms	384 KB	Output is correct
27	Correct	6 ms	640 KB	Output is correct
28	Correct	6 ms	640 KB	Output is correct
29	Correct	7 ms	640 KB	Output is correct
30	Correct	1 ms	384 KB	Output is correct
31	Correct	6 ms	640 KB	Output is correct

Subtask #3
33.0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	41 ms	1024 KB	Output is correct
2	Correct	115 ms	1448 KB	Output is correct
3	Correct	41 ms	1144 KB	Output is correct
4	Correct	41 ms	1024 KB	Output is correct
5	Correct	48 ms	1112 KB	Output is correct
6	Correct	40 ms	1024 KB	Output is correct
7	Correct	7 ms	640 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	9 ms	640 KB	Output is correct
10	Correct	7 ms	640 KB	Output is correct
11	Correct	8 ms	640 KB	Output is correct
12	Correct	8 ms	640 KB	Output is correct
13	Correct	6 ms	640 KB	Output is correct

Subtask #4
34.0 / 34.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	640 KB	Output is correct
2	Correct	6 ms	640 KB	Output is correct
3	Correct	7 ms	640 KB	Output is correct
4	Correct	6 ms	640 KB	Output is correct
5	Correct	6 ms	640 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	6 ms	640 KB	Output is correct
8	Correct	6 ms	640 KB	Output is correct
9	Correct	7 ms	640 KB	Output is correct
10	Correct	6 ms	640 KB	Output is correct
11	Correct	6 ms	640 KB	Output is correct
12	Correct	7 ms	640 KB	Output is correct
13	Correct	6 ms	640 KB	Output is correct
14	Correct	6 ms	640 KB	Output is correct
15	Correct	7 ms	640 KB	Output is correct
16	Correct	6 ms	640 KB	Output is correct
17	Correct	41 ms	1024 KB	Output is correct
18	Correct	115 ms	1448 KB	Output is correct
19	Correct	41 ms	1144 KB	Output is correct
20	Correct	41 ms	1024 KB	Output is correct
21	Correct	48 ms	1112 KB	Output is correct
22	Correct	40 ms	1024 KB	Output is correct
23	Correct	7 ms	640 KB	Output is correct
24	Correct	0 ms	384 KB	Output is correct
25	Correct	9 ms	640 KB	Output is correct
26	Correct	7 ms	640 KB	Output is correct
27	Correct	8 ms	640 KB	Output is correct
28	Correct	8 ms	640 KB	Output is correct
29	Correct	6 ms	640 KB	Output is correct
30	Correct	36 ms	1024 KB	Output is correct
31	Correct	39 ms	1024 KB	Output is correct
32	Correct	55 ms	1408 KB	Output is correct
33	Correct	39 ms	1152 KB	Output is correct
34	Correct	39 ms	1144 KB	Output is correct
35	Correct	53 ms	1024 KB	Output is correct
36	Correct	73 ms	1400 KB	Output is correct
37	Correct	1 ms	384 KB	Output is correct
38	Correct	1 ms	384 KB	Output is correct
39	Correct	41 ms	896 KB	Output is correct
40	Correct	39 ms	896 KB	Output is correct
41	Correct	37 ms	1024 KB	Output is correct
42	Correct	48 ms	1024 KB	Output is correct
43	Correct	37 ms	896 KB	Output is correct
44	Correct	1 ms	384 KB	Output is correct
45	Correct	9 ms	640 KB	Output is correct
46	Correct	8 ms	640 KB	Output is correct
47	Correct	7 ms	640 KB	Output is correct
48	Correct	82 ms	1400 KB	Output is correct
49	Correct	80 ms	1424 KB	Output is correct
50	Correct	1 ms	384 KB	Output is correct
51	Correct	66 ms	1272 KB	Output is correct
52	Correct	37 ms	968 KB	Output is correct
53	Correct	36 ms	896 KB	Output is correct
54	Correct	7 ms	640 KB	Output is correct
55	Correct	6 ms	640 KB	Output is correct
56	Correct	5 ms	640 KB	Output is correct
57	Correct	6 ms	640 KB	Output is correct
58	Correct	0 ms	384 KB	Output is correct
59	Correct	6 ms	640 KB	Output is correct
60	Correct	6 ms	640 KB	Output is correct
61	Correct	7 ms	640 KB	Output is correct
62	Correct	1 ms	384 KB	Output is correct
63	Correct	6 ms	640 KB	Output is correct

답안 #263439

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