oj.uz

Submission #104729

# Submission time Handle Problem Language Result Execution time Memory
104729 2019-04-09T03:23:12 Z puyu_liao Travelling Merchant (APIO17_merchant) C++14
54 / 100
 531 ms 2300 KB 
#include<bits/stdc++.h>
#include<stdint.h>
using namespace std;
#define IOS {cin.tie(0);ios_base::sync_with_stdio(false);}
#define int int64_t
#define N 105
#define K 1005
const int INF = 1e14;
const double eps = 1e-6;

int bb[N][K],ss[N][K];
int w[N][N],dis[N][N];
double dp[N][N];
bitset<N> vis;
vector<pair<int,int> > v[N];

int32_t main()
{
	IOS;
	int n,m,k,a,b,t;
	cin >> n >> m >> k;
	for(int i=1;i<=n;i++) for(int j=1;j<=k;j++) cin >> bb[i][j] >> ss[i][j];
	
	for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) dis[i][j] = INF;
	for(int i=1;i<=n;i++) dis[i][i] = 0;
	for(int i=0;i<m;i++){
		cin >> a >> b >> t;
		dis[a][b] = t; 
	}
	for(int x=1;x<=n;x++) for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) 
			dis[i][j] = min(dis[i][j],dis[i][x] + dis[x][j]);

	for(int i=1;i<=n;i++) for(int j=1;j<=n;j++){
		if(j != i && dis[i][j] != INF) {
			for(int x=1;x<=k;x++) if(ss[j][x] >= 0 && bb[i][x] >= 0) w[i][j] = max(w[i][j],ss[j][x] - bb[i][x]);
		}
		else w[i][j] = 0;
	}

//	cout << "dis :\n";	
//	for(int i=1;i<=n;i++,cout << '\n') for(int j=1;j<=n;j++)cout << dis[i][j] << ' '; 
//	cout << "w :\n";
//	for(int i=1;i<=n;i++,cout << '\n') for(int j=1;j<=n;j++)cout << w[i][j] << ' '; 

	double l=0,r = INF;
	for(int cnt=0;cnt<400;cnt++){
		double mm = (l+r)*0.5;
		for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) {
			dp[i][j] = mm*dis[i][j] - w[i][j];
		}
//		cout << "mm = " << mm << '\n';
//		cout << "dp :\n";
//		for(int i=1;i<=n;i++,cout << '\n') for(int j=1;j<=n;j++)cout << fixed << setprecision(1) << dp[i][j] << ' '; 
		for(int x=1;x<=n;x++) for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) {
			dp[i][j] = min(dp[i][j],dp[i][x] + dp[x][j]);
		}
		bool gg = false;
		for(int i=1;i<=n;i++) if(dp[i][i] < 0) gg = true;
		if(gg) l = mm;
		else r = mm;
	}
	cout << (int)(floor(l+eps)+0.5) << '\n';
  return 0;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 477 ms 2300 KB Output is correct
2 Incorrect 404 ms 1408 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 896 KB Output is correct
2 Correct 62 ms 896 KB Output is correct
3 Correct 88 ms 896 KB Output is correct
4 Correct 50 ms 896 KB Output is correct
5 Correct 64 ms 896 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 67 ms 932 KB Output is correct
8 Correct 63 ms 896 KB Output is correct
9 Correct 85 ms 896 KB Output is correct
10 Correct 77 ms 948 KB Output is correct
11 Correct 63 ms 896 KB Output is correct
12 Correct 72 ms 896 KB Output is correct
13 Correct 61 ms 896 KB Output is correct
14 Correct 54 ms 896 KB Output is correct
15 Correct 58 ms 896 KB Output is correct
16 Correct 59 ms 896 KB Output is correct
17 Correct 56 ms 1000 KB Output is correct
18 Correct 3 ms 356 KB Output is correct
19 Correct 58 ms 988 KB Output is correct
20 Correct 72 ms 960 KB Output is correct
21 Correct 80 ms 896 KB Output is correct
22 Correct 75 ms 896 KB Output is correct
23 Correct 77 ms 896 KB Output is correct
24 Correct 56 ms 896 KB Output is correct
25 Correct 56 ms 896 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 55 ms 896 KB Output is correct
28 Correct 52 ms 896 KB Output is correct
29 Correct 57 ms 920 KB Output is correct
30 Correct 3 ms 384 KB Output is correct
31 Correct 62 ms 1016 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 395 ms 1612 KB Output is correct
2 Correct 460 ms 2216 KB Output is correct
3 Correct 531 ms 1528 KB Output is correct
4 Correct 477 ms 1656 KB Output is correct
5 Correct 445 ms 1536 KB Output is correct
6 Correct 444 ms 1528 KB Output is correct
7 Correct 56 ms 1000 KB Output is correct
8 Correct 3 ms 356 KB Output is correct
9 Correct 58 ms 988 KB Output is correct
10 Correct 72 ms 960 KB Output is correct
11 Correct 80 ms 896 KB Output is correct
12 Correct 75 ms 896 KB Output is correct
13 Correct 77 ms 896 KB Output is correct

Subtask #4
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 896 KB Output is correct
2 Correct 62 ms 896 KB Output is correct
3 Correct 88 ms 896 KB Output is correct
4 Correct 50 ms 896 KB Output is correct
5 Correct 64 ms 896 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 67 ms 932 KB Output is correct
8 Correct 63 ms 896 KB Output is correct
9 Correct 85 ms 896 KB Output is correct
10 Correct 77 ms 948 KB Output is correct
11 Correct 63 ms 896 KB Output is correct
12 Correct 72 ms 896 KB Output is correct
13 Correct 61 ms 896 KB Output is correct
14 Correct 54 ms 896 KB Output is correct
15 Correct 58 ms 896 KB Output is correct
16 Correct 59 ms 896 KB Output is correct
17 Correct 395 ms 1612 KB Output is correct
18 Correct 460 ms 2216 KB Output is correct
19 Correct 531 ms 1528 KB Output is correct
20 Correct 477 ms 1656 KB Output is correct
21 Correct 445 ms 1536 KB Output is correct
22 Correct 444 ms 1528 KB Output is correct
23 Correct 56 ms 1000 KB Output is correct
24 Correct 3 ms 356 KB Output is correct
25 Correct 58 ms 988 KB Output is correct
26 Correct 72 ms 960 KB Output is correct
27 Correct 80 ms 896 KB Output is correct
28 Correct 75 ms 896 KB Output is correct
29 Correct 77 ms 896 KB Output is correct
30 Correct 447 ms 1408 KB Output is correct
31 Correct 412 ms 1628 KB Output is correct
32 Correct 448 ms 2296 KB Output is correct
33 Correct 433 ms 1600 KB Output is correct
34 Correct 412 ms 1616 KB Output is correct
35 Correct 396 ms 1628 KB Output is correct
36 Correct 422 ms 2296 KB Output is correct
37 Correct 3 ms 384 KB Output is correct
38 Correct 3 ms 384 KB Output is correct
39 Correct 433 ms 1500 KB Output is correct
40 Correct 390 ms 1476 KB Output is correct
41 Correct 410 ms 1528 KB Output is correct
42 Correct 426 ms 1504 KB Output is correct
43 Correct 418 ms 1476 KB Output is correct
44 Correct 2 ms 384 KB Output is correct
45 Correct 65 ms 896 KB Output is correct
46 Correct 85 ms 1004 KB Output is correct
47 Correct 66 ms 908 KB Output is correct
48 Correct 430 ms 2228 KB Output is correct
49 Correct 495 ms 2220 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 477 ms 2300 KB Output is correct
52 Incorrect 404 ms 1408 KB Output isn't correct
53 Halted 0 ms 0 KB -