oj.uz

Submission #104727

# Submission time Handle Problem Language Result Execution time Memory
104727 2019-04-09T03:19:22 Z puyu_liao Travelling Merchant (APIO17_merchant) C++14
54 / 100
 204 ms 2228 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-4;

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<120;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 184 ms 2168 KB Output is correct
2 Incorrect 129 ms 1444 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 20 ms 1024 KB Output is correct
2 Correct 22 ms 972 KB Output is correct
3 Correct 22 ms 944 KB Output is correct
4 Correct 26 ms 944 KB Output is correct
5 Correct 26 ms 896 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 19 ms 1024 KB Output is correct
8 Correct 19 ms 896 KB Output is correct
9 Correct 18 ms 896 KB Output is correct
10 Correct 18 ms 896 KB Output is correct
11 Correct 21 ms 972 KB Output is correct
12 Correct 21 ms 896 KB Output is correct
13 Correct 20 ms 896 KB Output is correct
14 Correct 18 ms 896 KB Output is correct
15 Correct 19 ms 896 KB Output is correct
16 Correct 19 ms 896 KB Output is correct
17 Correct 22 ms 896 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 20 ms 896 KB Output is correct
20 Correct 19 ms 896 KB Output is correct
21 Correct 21 ms 896 KB Output is correct
22 Correct 22 ms 896 KB Output is correct
23 Correct 22 ms 896 KB Output is correct
24 Correct 20 ms 896 KB Output is correct
25 Correct 22 ms 896 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 26 ms 896 KB Output is correct
28 Correct 27 ms 896 KB Output is correct
29 Correct 21 ms 832 KB Output is correct
30 Correct 2 ms 512 KB Output is correct
31 Correct 23 ms 896 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 129 ms 1536 KB Output is correct
2 Correct 190 ms 2172 KB Output is correct
3 Correct 136 ms 1536 KB Output is correct
4 Correct 136 ms 1536 KB Output is correct
5 Correct 162 ms 1656 KB Output is correct
6 Correct 116 ms 1408 KB Output is correct
7 Correct 22 ms 896 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 20 ms 896 KB Output is correct
10 Correct 19 ms 896 KB Output is correct
11 Correct 21 ms 896 KB Output is correct
12 Correct 22 ms 896 KB Output is correct
13 Correct 22 ms 896 KB Output is correct

Subtask #4
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 1024 KB Output is correct
2 Correct 22 ms 972 KB Output is correct
3 Correct 22 ms 944 KB Output is correct
4 Correct 26 ms 944 KB Output is correct
5 Correct 26 ms 896 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 19 ms 1024 KB Output is correct
8 Correct 19 ms 896 KB Output is correct
9 Correct 18 ms 896 KB Output is correct
10 Correct 18 ms 896 KB Output is correct
11 Correct 21 ms 972 KB Output is correct
12 Correct 21 ms 896 KB Output is correct
13 Correct 20 ms 896 KB Output is correct
14 Correct 18 ms 896 KB Output is correct
15 Correct 19 ms 896 KB Output is correct
16 Correct 19 ms 896 KB Output is correct
17 Correct 129 ms 1536 KB Output is correct
18 Correct 190 ms 2172 KB Output is correct
19 Correct 136 ms 1536 KB Output is correct
20 Correct 136 ms 1536 KB Output is correct
21 Correct 162 ms 1656 KB Output is correct
22 Correct 116 ms 1408 KB Output is correct
23 Correct 22 ms 896 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 20 ms 896 KB Output is correct
26 Correct 19 ms 896 KB Output is correct
27 Correct 21 ms 896 KB Output is correct
28 Correct 22 ms 896 KB Output is correct
29 Correct 22 ms 896 KB Output is correct
30 Correct 138 ms 1548 KB Output is correct
31 Correct 138 ms 1688 KB Output is correct
32 Correct 152 ms 2168 KB Output is correct
33 Correct 131 ms 1600 KB Output is correct
34 Correct 124 ms 1616 KB Output is correct
35 Correct 126 ms 1616 KB Output is correct
36 Correct 200 ms 2168 KB Output is correct
37 Correct 2 ms 384 KB Output is correct
38 Correct 3 ms 512 KB Output is correct
39 Correct 113 ms 1408 KB Output is correct
40 Correct 133 ms 1476 KB Output is correct
41 Correct 124 ms 1504 KB Output is correct
42 Correct 134 ms 1528 KB Output is correct
43 Correct 133 ms 1408 KB Output is correct
44 Correct 2 ms 384 KB Output is correct
45 Correct 23 ms 996 KB Output is correct
46 Correct 19 ms 896 KB Output is correct
47 Correct 26 ms 1024 KB Output is correct
48 Correct 204 ms 2228 KB Output is correct
49 Correct 195 ms 2168 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 184 ms 2168 KB Output is correct
52 Incorrect 129 ms 1444 KB Output isn't correct
53 Halted 0 ms 0 KB -