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Submission #163272

# Submission time Handle Problem Language Result Execution time Memory
163272 2019-11-12T06:01:35 Z HungAnhGoldIBO2020 Travelling Merchant (APIO17_merchant) C++14
100 / 100
 108 ms 4332 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=101;
const int K=1001;
const int inf=1e9+7;
int dis[N][N],b[N][K],s[N][K],max1[N][N],maxdis[N][N];
signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n,i,j,k,l,num,m;
	cin>>n>>m>>num;
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			if(i==j){
				continue;
			}
			dis[i][j]=inf;
		}
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=num;j++){
			cin>>b[i][j]>>s[i][j];
		}
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			for(k=1;k<=num;k++){
				if(b[i][k]!=-1&&s[j][k]!=-1){
					max1[i][j]=max(max1[i][j],s[j][k]-b[i][k]);
				}
			}
		}
	}
	for(i=1;i<=m;i++){
		cin>>j>>k>>l;
		dis[j][k]=min(dis[j][k],l);
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			for(k=1;k<=n;k++){
				if(dis[j][k]>dis[j][i]+dis[i][k]){
					dis[j][k]=dis[j][i]+dis[i][k];
				}
			}
		}
	}
//	for(i=1;i<=n;i++){
//		for(j=1;j<=n;j++){
//			cout<<dis[i][j]<<' ';
//		}
//		cout<<endl;
//	}
//	for(i=1;i<=n;i++){
//		for(j=1;j<=n;j++){
//			cout<<max1[i][j]<<' ';
//		}
//		cout<<endl;
//	}
	int lef=0,rig=inf,mid;
	while(rig>lef){
		mid=(lef+rig+1)/2;
		for(i=1;i<=n;i++){
			for(j=1;j<=n;j++){
				maxdis[i][j]=max1[i][j]-dis[i][j]*mid;
				if(i==j){
					maxdis[i][i]=-inf;
				}
			}
		}
		for(i=1;i<=n;i++){
			for(j=1;j<=n;j++){
				for(k=1;k<=n;k++){
					maxdis[j][k]=max(maxdis[j][k],maxdis[j][i]+maxdis[i][k]);
				}
			}
		}
		bool cac=true;
		for(i=1;i<=n;i++){
			if(maxdis[i][i]>=0){
				lef=mid;
				cac=false;
				break;
			}
		}
		//cout<<"???"<<endl;
		if(cac){
			rig=mid-1;	
		}
	}
	cout<<lef;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 3448 KB Output is correct
2 Correct 45 ms 1272 KB Output is correct
3 Correct 42 ms 1276 KB Output is correct
4 Correct 21 ms 888 KB Output is correct
5 Correct 8 ms 760 KB Output is correct
6 Correct 8 ms 760 KB Output is correct
7 Correct 9 ms 888 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 18 ms 760 KB Output is correct
10 Correct 8 ms 888 KB Output is correct
11 Correct 8 ms 888 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 9 ms 888 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1016 KB Output is correct
2 Correct 8 ms 888 KB Output is correct
3 Correct 9 ms 968 KB Output is correct
4 Correct 8 ms 888 KB Output is correct
5 Correct 10 ms 1016 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 9 ms 888 KB Output is correct
8 Correct 9 ms 888 KB Output is correct
9 Correct 9 ms 936 KB Output is correct
10 Correct 9 ms 892 KB Output is correct
11 Correct 9 ms 1016 KB Output is correct
12 Correct 9 ms 888 KB Output is correct
13 Correct 9 ms 888 KB Output is correct
14 Correct 9 ms 888 KB Output is correct
15 Correct 10 ms 1016 KB Output is correct
16 Correct 8 ms 888 KB Output is correct
17 Correct 9 ms 888 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 9 ms 892 KB Output is correct
20 Correct 9 ms 1016 KB Output is correct
21 Correct 10 ms 1016 KB Output is correct
22 Correct 9 ms 888 KB Output is correct
23 Correct 8 ms 888 KB Output is correct
24 Correct 8 ms 760 KB Output is correct
25 Correct 9 ms 888 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 18 ms 760 KB Output is correct
28 Correct 8 ms 888 KB Output is correct
29 Correct 8 ms 888 KB Output is correct
30 Correct 2 ms 504 KB Output is correct
31 Correct 9 ms 888 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 1784 KB Output is correct
2 Correct 97 ms 4088 KB Output is correct
3 Correct 47 ms 1528 KB Output is correct
4 Correct 51 ms 1784 KB Output is correct
5 Correct 50 ms 1784 KB Output is correct
6 Correct 45 ms 1656 KB Output is correct
7 Correct 9 ms 888 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 9 ms 892 KB Output is correct
10 Correct 9 ms 1016 KB Output is correct
11 Correct 10 ms 1016 KB Output is correct
12 Correct 9 ms 888 KB Output is correct
13 Correct 8 ms 888 KB Output is correct

Subtask #4
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1016 KB Output is correct
2 Correct 8 ms 888 KB Output is correct
3 Correct 9 ms 968 KB Output is correct
4 Correct 8 ms 888 KB Output is correct
5 Correct 10 ms 1016 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 9 ms 888 KB Output is correct
8 Correct 9 ms 888 KB Output is correct
9 Correct 9 ms 936 KB Output is correct
10 Correct 9 ms 892 KB Output is correct
11 Correct 9 ms 1016 KB Output is correct
12 Correct 9 ms 888 KB Output is correct
13 Correct 9 ms 888 KB Output is correct
14 Correct 9 ms 888 KB Output is correct
15 Correct 10 ms 1016 KB Output is correct
16 Correct 8 ms 888 KB Output is correct
17 Correct 49 ms 1784 KB Output is correct
18 Correct 97 ms 4088 KB Output is correct
19 Correct 47 ms 1528 KB Output is correct
20 Correct 51 ms 1784 KB Output is correct
21 Correct 50 ms 1784 KB Output is correct
22 Correct 45 ms 1656 KB Output is correct
23 Correct 9 ms 888 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 9 ms 892 KB Output is correct
26 Correct 9 ms 1016 KB Output is correct
27 Correct 10 ms 1016 KB Output is correct
28 Correct 9 ms 888 KB Output is correct
29 Correct 8 ms 888 KB Output is correct
30 Correct 43 ms 1632 KB Output is correct
31 Correct 46 ms 1732 KB Output is correct
32 Correct 69 ms 2680 KB Output is correct
33 Correct 48 ms 1528 KB Output is correct
34 Correct 46 ms 1656 KB Output is correct
35 Correct 46 ms 1656 KB Output is correct
36 Correct 108 ms 4148 KB Output is correct
37 Correct 2 ms 504 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 44 ms 1400 KB Output is correct
40 Correct 45 ms 1528 KB Output is correct
41 Correct 44 ms 1528 KB Output is correct
42 Correct 44 ms 1400 KB Output is correct
43 Correct 43 ms 1528 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 11 ms 1068 KB Output is correct
46 Correct 11 ms 1144 KB Output is correct
47 Correct 29 ms 1048 KB Output is correct
48 Correct 108 ms 4332 KB Output is correct
49 Correct 106 ms 4216 KB Output is correct
50 Correct 2 ms 504 KB Output is correct
51 Correct 74 ms 3448 KB Output is correct
52 Correct 45 ms 1272 KB Output is correct
53 Correct 42 ms 1276 KB Output is correct
54 Correct 21 ms 888 KB Output is correct
55 Correct 8 ms 760 KB Output is correct
56 Correct 8 ms 760 KB Output is correct
57 Correct 9 ms 888 KB Output is correct
58 Correct 2 ms 376 KB Output is correct
59 Correct 18 ms 760 KB Output is correct
60 Correct 8 ms 888 KB Output is correct
61 Correct 8 ms 888 KB Output is correct
62 Correct 2 ms 504 KB Output is correct
63 Correct 9 ms 888 KB Output is correct