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Submission #407130

# Submission time Handle Problem Language Result Execution time Memory
407130 2021-05-18T14:24:08 Z inluminas Travelling Merchant (APIO17_merchant) C++14
100 / 100
 118 ms 4164 KB 
#include"bits/stdc++.h"
using namespace std;
 
#define ll long long
#define endl "\n"
#define fastio ios_base::sync_with_stdio(false)
 
const int lmt=1e3+10,lmt2=1e2+10;
const ll inf=2e9;
ll n,m,k;
ll b[lmt2][lmt],s[lmt2][lmt],dis[lmt2][lmt2],ok[lmt2][lmt2],lob[lmt2][lmt2];
 
int main(){
	fastio;
 
	cin>>n>>m>>k;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=k;j++) cin>>b[i][j]>>s[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<=m;i++){
		ll u,v,w;
		cin>>u>>v>>w;
		dis[u][v]=w;
	}
	for(int l=1;l<=n;l++){
		for(int i=1;i<=n;i++){
			for(int j=1;j<=n;j++){
				if(dis[i][j]>dis[i][l]+dis[l][j]){
					dis[i][j]=dis[i][l]+dis[l][j];
				}
			}
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(dis[i][j]>=inf){
				lob[i][j]=-inf;
				continue;
			}
			for(int item=1;item<=k;item++){
				if(s[j][item]==-1 || b[i][item]==-1) continue;
				lob[i][j]=max(lob[i][j],s[j][item]-b[i][item]);
			}
		}
	}
	ll lo=0,hi=inf;
	while(lo<hi){
		ll mid=(lo+hi+1)/2;
		for(int i=1;i<=n;i++){
			for(int j=1;j<=n;j++){
				if(dis[i][j]>=inf) ok[i][j]=-inf;
				else ok[i][j]=lob[i][j]-mid*dis[i][j];
			}
		}
		for(int l=1;l<=n;l++){
			for(int i=1;i<=n;i++){
				for(int j=1;j<=n;j++){
					if(dis[i][l]>=inf || dis[j][l]>=inf) continue;
					ok[i][j]=max(ok[i][j],ok[i][l]+ok[l][j]);
				}
			}
		}
		bool on=0;
		for(int i=1;i<=n;i++){
			if(ok[i][i]>=0){
				on=1;
				break;
			}
		}
		if(on) lo=mid;
		else hi=mid-1;
	}
	cout<<lo<<endl;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 2060 KB Output is correct
2 Correct 48 ms 1228 KB Output is correct
3 Correct 50 ms 1228 KB Output is correct
4 Correct 8 ms 716 KB Output is correct
5 Correct 8 ms 812 KB Output is correct
6 Correct 7 ms 716 KB Output is correct
7 Correct 11 ms 844 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 8 ms 808 KB Output is correct
10 Correct 9 ms 716 KB Output is correct
11 Correct 8 ms 816 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 7 ms 912 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 716 KB Output is correct
2 Correct 11 ms 844 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 8 ms 808 KB Output is correct
5 Correct 9 ms 716 KB Output is correct
6 Correct 8 ms 816 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 7 ms 912 KB Output is correct
9 Correct 10 ms 844 KB Output is correct
10 Correct 8 ms 856 KB Output is correct
11 Correct 8 ms 920 KB Output is correct
12 Correct 7 ms 880 KB Output is correct
13 Correct 9 ms 840 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 7 ms 868 KB Output is correct
16 Correct 7 ms 936 KB Output is correct
17 Correct 7 ms 844 KB Output is correct
18 Correct 7 ms 844 KB Output is correct
19 Correct 9 ms 844 KB Output is correct
20 Correct 8 ms 920 KB Output is correct
21 Correct 8 ms 844 KB Output is correct
22 Correct 8 ms 844 KB Output is correct
23 Correct 9 ms 840 KB Output is correct
24 Correct 8 ms 828 KB Output is correct
25 Correct 9 ms 840 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 9 ms 844 KB Output is correct
28 Correct 9 ms 844 KB Output is correct
29 Correct 8 ms 964 KB Output is correct
30 Correct 8 ms 848 KB Output is correct
31 Correct 7 ms 860 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 840 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 9 ms 844 KB Output is correct
4 Correct 9 ms 844 KB Output is correct
5 Correct 8 ms 964 KB Output is correct
6 Correct 8 ms 848 KB Output is correct
7 Correct 7 ms 860 KB Output is correct
8 Correct 55 ms 1484 KB Output is correct
9 Correct 106 ms 2116 KB Output is correct
10 Correct 53 ms 1356 KB Output is correct
11 Correct 57 ms 1484 KB Output is correct
12 Correct 56 ms 1500 KB Output is correct
13 Correct 55 ms 1484 KB Output is correct

Subtask #4
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 844 KB Output is correct
2 Correct 8 ms 856 KB Output is correct
3 Correct 8 ms 920 KB Output is correct
4 Correct 7 ms 880 KB Output is correct
5 Correct 9 ms 840 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 7 ms 868 KB Output is correct
8 Correct 7 ms 936 KB Output is correct
9 Correct 7 ms 844 KB Output is correct
10 Correct 7 ms 844 KB Output is correct
11 Correct 9 ms 844 KB Output is correct
12 Correct 8 ms 920 KB Output is correct
13 Correct 8 ms 844 KB Output is correct
14 Correct 8 ms 844 KB Output is correct
15 Correct 9 ms 840 KB Output is correct
16 Correct 8 ms 828 KB Output is correct
17 Correct 55 ms 1484 KB Output is correct
18 Correct 106 ms 2116 KB Output is correct
19 Correct 53 ms 1356 KB Output is correct
20 Correct 57 ms 1484 KB Output is correct
21 Correct 56 ms 1500 KB Output is correct
22 Correct 55 ms 1484 KB Output is correct
23 Correct 9 ms 840 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 9 ms 844 KB Output is correct
26 Correct 9 ms 844 KB Output is correct
27 Correct 8 ms 964 KB Output is correct
28 Correct 8 ms 848 KB Output is correct
29 Correct 7 ms 860 KB Output is correct
30 Correct 81 ms 2060 KB Output is correct
31 Correct 48 ms 1228 KB Output is correct
32 Correct 50 ms 1228 KB Output is correct
33 Correct 8 ms 716 KB Output is correct
34 Correct 8 ms 812 KB Output is correct
35 Correct 7 ms 716 KB Output is correct
36 Correct 11 ms 844 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 8 ms 808 KB Output is correct
39 Correct 9 ms 716 KB Output is correct
40 Correct 8 ms 816 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 7 ms 912 KB Output is correct
43 Correct 51 ms 1408 KB Output is correct
44 Correct 53 ms 1612 KB Output is correct
45 Correct 75 ms 2628 KB Output is correct
46 Correct 54 ms 1612 KB Output is correct
47 Correct 58 ms 1616 KB Output is correct
48 Correct 53 ms 1612 KB Output is correct
49 Correct 112 ms 4076 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 51 ms 1356 KB Output is correct
53 Correct 53 ms 1488 KB Output is correct
54 Correct 44 ms 1484 KB Output is correct
55 Correct 49 ms 1476 KB Output is correct
56 Correct 51 ms 1356 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 9 ms 968 KB Output is correct
59 Correct 11 ms 972 KB Output is correct
60 Correct 8 ms 992 KB Output is correct
61 Correct 118 ms 4164 KB Output is correct
62 Correct 117 ms 4156 KB Output is correct
63 Correct 1 ms 332 KB Output is correct