oj.uz

Submission #104087

# Submission time Handle Problem Language Result Execution time Memory
104087 2019-04-04T00:26:00 Z autumn_eel Travelling Merchant (APIO17_merchant) C++14
100 / 100
 937 ms 4472 KB 
#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
#define INF 0x3f3f3f3f3f3f3f3f
using namespace std;
typedef long long ll;

int n,m,K;
ll d[200][200],a[200][200];
int b[200][2000],s[200][2000];

bool C(ll t){
	rep(i,n)rep(j,n)a[i][j]=-INF;
	rep(i,n)rep(j,n){
		if(i==j||d[i][j]==INF)continue;
		a[i][j]=-t*d[i][j];
		rep(k,K){
			if(b[i][k]==-1||s[j][k]==-1)continue;
			a[i][j]=max(a[i][j],s[j][k]-b[i][k]-t*d[i][j]);
		}
	}
	rep(k,n)rep(i,n)rep(j,n){
		a[i][j]=max(a[i][j],a[i][k]+a[k][j]);
	}
	rep(i,n){
		if(a[i][i]>=0)return true;
	}
	return false;
}
int main(){
	cin>>n>>m>>K;
	rep(i,n)rep(j,K)scanf("%d%d",&b[i][j],&s[i][j]);
	memset(d,0x3f,sizeof(d));
	rep(i,n)d[i][i]=0;
	rep(i,m){
		int a,b,c;scanf("%d%d%d",&a,&b,&c);a--;b--;
		d[a][b]=c;
	}
	rep(k,n)rep(i,n)rep(j,n){
		d[i][j]=min(d[i][j],d[i][k]+d[k][j]);
	}
	ll l=0,r=INT_MAX;
	while(r-l>1){
		ll t=(l+r)/2;
		if(C(t))l=t;
		else r=t;
	}
	cout<<l<<endl;
}

Compilation message

merchant.cpp: In function 'int main()':
merchant.cpp:31:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  rep(i,n)rep(j,K)scanf("%d%d",&b[i][j],&s[i][j]);
                  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
merchant.cpp:35:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int a,b,c;scanf("%d%d%d",&a,&b,&c);a--;b--;
             ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 330 ms 2552 KB Output is correct
2 Correct 40 ms 1664 KB Output is correct
3 Correct 47 ms 1536 KB Output is correct
4 Correct 11 ms 1152 KB Output is correct
5 Correct 8 ms 1152 KB Output is correct
6 Correct 8 ms 1152 KB Output is correct
7 Correct 14 ms 1152 KB Output is correct
8 Correct 3 ms 640 KB Output is correct
9 Correct 9 ms 1280 KB Output is correct
10 Correct 9 ms 1152 KB Output is correct
11 Correct 7 ms 1152 KB Output is correct
12 Correct 3 ms 768 KB Output is correct
13 Correct 10 ms 1280 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1152 KB Output is correct
2 Correct 11 ms 1292 KB Output is correct
3 Correct 13 ms 1152 KB Output is correct
4 Correct 12 ms 1280 KB Output is correct
5 Correct 18 ms 1152 KB Output is correct
6 Correct 2 ms 768 KB Output is correct
7 Correct 8 ms 1148 KB Output is correct
8 Correct 17 ms 1152 KB Output is correct
9 Correct 11 ms 1152 KB Output is correct
10 Correct 12 ms 1152 KB Output is correct
11 Correct 24 ms 1256 KB Output is correct
12 Correct 16 ms 1152 KB Output is correct
13 Correct 11 ms 1152 KB Output is correct
14 Correct 12 ms 1152 KB Output is correct
15 Correct 19 ms 1152 KB Output is correct
16 Correct 9 ms 1152 KB Output is correct
17 Correct 20 ms 1164 KB Output is correct
18 Correct 2 ms 640 KB Output is correct
19 Correct 17 ms 1152 KB Output is correct
20 Correct 19 ms 1152 KB Output is correct
21 Correct 15 ms 1152 KB Output is correct
22 Correct 14 ms 1152 KB Output is correct
23 Correct 13 ms 1152 KB Output is correct
24 Correct 8 ms 1152 KB Output is correct
25 Correct 14 ms 1152 KB Output is correct
26 Correct 3 ms 640 KB Output is correct
27 Correct 9 ms 1280 KB Output is correct
28 Correct 9 ms 1152 KB Output is correct
29 Correct 7 ms 1152 KB Output is correct
30 Correct 3 ms 768 KB Output is correct
31 Correct 10 ms 1280 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 1664 KB Output is correct
2 Correct 846 ms 2336 KB Output is correct
3 Correct 83 ms 1664 KB Output is correct
4 Correct 122 ms 1664 KB Output is correct
5 Correct 143 ms 1784 KB Output is correct
6 Correct 77 ms 1664 KB Output is correct
7 Correct 20 ms 1164 KB Output is correct
8 Correct 2 ms 640 KB Output is correct
9 Correct 17 ms 1152 KB Output is correct
10 Correct 19 ms 1152 KB Output is correct
11 Correct 15 ms 1152 KB Output is correct
12 Correct 14 ms 1152 KB Output is correct
13 Correct 13 ms 1152 KB Output is correct

Subtask #4
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1152 KB Output is correct
2 Correct 11 ms 1292 KB Output is correct
3 Correct 13 ms 1152 KB Output is correct
4 Correct 12 ms 1280 KB Output is correct
5 Correct 18 ms 1152 KB Output is correct
6 Correct 2 ms 768 KB Output is correct
7 Correct 8 ms 1148 KB Output is correct
8 Correct 17 ms 1152 KB Output is correct
9 Correct 11 ms 1152 KB Output is correct
10 Correct 12 ms 1152 KB Output is correct
11 Correct 24 ms 1256 KB Output is correct
12 Correct 16 ms 1152 KB Output is correct
13 Correct 11 ms 1152 KB Output is correct
14 Correct 12 ms 1152 KB Output is correct
15 Correct 19 ms 1152 KB Output is correct
16 Correct 9 ms 1152 KB Output is correct
17 Correct 134 ms 1664 KB Output is correct
18 Correct 846 ms 2336 KB Output is correct
19 Correct 83 ms 1664 KB Output is correct
20 Correct 122 ms 1664 KB Output is correct
21 Correct 143 ms 1784 KB Output is correct
22 Correct 77 ms 1664 KB Output is correct
23 Correct 20 ms 1164 KB Output is correct
24 Correct 2 ms 640 KB Output is correct
25 Correct 17 ms 1152 KB Output is correct
26 Correct 19 ms 1152 KB Output is correct
27 Correct 15 ms 1152 KB Output is correct
28 Correct 14 ms 1152 KB Output is correct
29 Correct 13 ms 1152 KB Output is correct
30 Correct 52 ms 1692 KB Output is correct
31 Correct 101 ms 1772 KB Output is correct
32 Correct 302 ms 2688 KB Output is correct
33 Correct 80 ms 1792 KB Output is correct
34 Correct 86 ms 1784 KB Output is correct
35 Correct 82 ms 1792 KB Output is correct
36 Correct 908 ms 4316 KB Output is correct
37 Correct 3 ms 768 KB Output is correct
38 Correct 3 ms 768 KB Output is correct
39 Correct 55 ms 1788 KB Output is correct
40 Correct 52 ms 1664 KB Output is correct
41 Correct 65 ms 1784 KB Output is correct
42 Correct 52 ms 1664 KB Output is correct
43 Correct 45 ms 1664 KB Output is correct
44 Correct 3 ms 640 KB Output is correct
45 Correct 27 ms 1280 KB Output is correct
46 Correct 24 ms 1280 KB Output is correct
47 Correct 20 ms 1280 KB Output is correct
48 Correct 916 ms 4472 KB Output is correct
49 Correct 937 ms 4472 KB Output is correct
50 Correct 3 ms 640 KB Output is correct
51 Correct 330 ms 2552 KB Output is correct
52 Correct 40 ms 1664 KB Output is correct
53 Correct 47 ms 1536 KB Output is correct
54 Correct 11 ms 1152 KB Output is correct
55 Correct 8 ms 1152 KB Output is correct
56 Correct 8 ms 1152 KB Output is correct
57 Correct 14 ms 1152 KB Output is correct
58 Correct 3 ms 640 KB Output is correct
59 Correct 9 ms 1280 KB Output is correct
60 Correct 9 ms 1152 KB Output is correct
61 Correct 7 ms 1152 KB Output is correct
62 Correct 3 ms 768 KB Output is correct
63 Correct 10 ms 1280 KB Output is correct