oj.uz

Submission #104726

# Submission time Handle Problem Language Result Execution time Memory
104726 2019-04-09T03:17:55 Z puyu_liao Travelling Merchant (APIO17_merchant) C++14
54 / 100
 193 ms 4224 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 = 1e17;
const double eps = 1e-2;

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 = 1e14;
	for(int cnt=0;cnt<100;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 144 ms 2296 KB Output is correct
2 Incorrect 98 ms 1440 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 22 ms 896 KB Output is correct
2 Correct 22 ms 896 KB Output is correct
3 Correct 24 ms 896 KB Output is correct
4 Correct 18 ms 896 KB Output is correct
5 Correct 22 ms 1144 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 17 ms 1024 KB Output is correct
8 Correct 21 ms 896 KB Output is correct
9 Correct 16 ms 896 KB Output is correct
10 Correct 17 ms 896 KB Output is correct
11 Correct 17 ms 896 KB Output is correct
12 Correct 22 ms 896 KB Output is correct
13 Correct 19 ms 896 KB Output is correct
14 Correct 24 ms 944 KB Output is correct
15 Correct 24 ms 1016 KB Output is correct
16 Correct 15 ms 896 KB Output is correct
17 Correct 18 ms 896 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 18 ms 1024 KB Output is correct
20 Correct 21 ms 1024 KB Output is correct
21 Correct 25 ms 1024 KB Output is correct
22 Correct 24 ms 896 KB Output is correct
23 Correct 17 ms 896 KB Output is correct
24 Correct 23 ms 896 KB Output is correct
25 Correct 18 ms 896 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 17 ms 896 KB Output is correct
28 Correct 18 ms 896 KB Output is correct
29 Correct 17 ms 896 KB Output is correct
30 Correct 3 ms 512 KB Output is correct
31 Correct 24 ms 1016 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 121 ms 1784 KB Output is correct
2 Correct 170 ms 2140 KB Output is correct
3 Correct 120 ms 1408 KB Output is correct
4 Correct 127 ms 1536 KB Output is correct
5 Correct 114 ms 1536 KB Output is correct
6 Correct 125 ms 1408 KB Output is correct
7 Correct 18 ms 896 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 18 ms 1024 KB Output is correct
10 Correct 21 ms 1024 KB Output is correct
11 Correct 25 ms 1024 KB Output is correct
12 Correct 24 ms 896 KB Output is correct
13 Correct 17 ms 896 KB Output is correct

Subtask #4
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 896 KB Output is correct
2 Correct 22 ms 896 KB Output is correct
3 Correct 24 ms 896 KB Output is correct
4 Correct 18 ms 896 KB Output is correct
5 Correct 22 ms 1144 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 17 ms 1024 KB Output is correct
8 Correct 21 ms 896 KB Output is correct
9 Correct 16 ms 896 KB Output is correct
10 Correct 17 ms 896 KB Output is correct
11 Correct 17 ms 896 KB Output is correct
12 Correct 22 ms 896 KB Output is correct
13 Correct 19 ms 896 KB Output is correct
14 Correct 24 ms 944 KB Output is correct
15 Correct 24 ms 1016 KB Output is correct
16 Correct 15 ms 896 KB Output is correct
17 Correct 121 ms 1784 KB Output is correct
18 Correct 170 ms 2140 KB Output is correct
19 Correct 120 ms 1408 KB Output is correct
20 Correct 127 ms 1536 KB Output is correct
21 Correct 114 ms 1536 KB Output is correct
22 Correct 125 ms 1408 KB Output is correct
23 Correct 18 ms 896 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 18 ms 1024 KB Output is correct
26 Correct 21 ms 1024 KB Output is correct
27 Correct 25 ms 1024 KB Output is correct
28 Correct 24 ms 896 KB Output is correct
29 Correct 17 ms 896 KB Output is correct
30 Correct 132 ms 1380 KB Output is correct
31 Correct 128 ms 1784 KB Output is correct
32 Correct 133 ms 2728 KB Output is correct
33 Correct 116 ms 1656 KB Output is correct
34 Correct 139 ms 1664 KB Output is correct
35 Correct 114 ms 1760 KB Output is correct
36 Correct 159 ms 4224 KB Output is correct
37 Correct 3 ms 384 KB Output is correct
38 Correct 2 ms 512 KB Output is correct
39 Correct 152 ms 1408 KB Output is correct
40 Correct 107 ms 1536 KB Output is correct
41 Correct 109 ms 1656 KB Output is correct
42 Correct 109 ms 1556 KB Output is correct
43 Correct 103 ms 1520 KB Output is correct
44 Correct 3 ms 512 KB Output is correct
45 Correct 17 ms 1044 KB Output is correct
46 Correct 18 ms 1024 KB Output is correct
47 Correct 18 ms 1024 KB Output is correct
48 Correct 176 ms 4220 KB Output is correct
49 Correct 193 ms 4216 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 144 ms 2296 KB Output is correct
52 Incorrect 98 ms 1440 KB Output isn't correct
53 Halted 0 ms 0 KB -