#include <cstdio>
#include <queue>
#include <vector>
#include <cstring>
#include <algorithm>
using namespace std;
struct data{
int to,dist;
};
struct cmp{
bool operator()(data d1,data d2){
return d1.dist>d2.dist;
}
};
int n,m;
int dist[2010];
int graph[2010][2010];
data arr[30010];
bool visit[2010];
void dij(int a){
int i,j,flag=1,now;
data s;
while(flag){
flag=0; now=21e8;
for(i=0;i<n;i++){
if(!visit[i] && dist[i] && dist[i]<now) a=i,flag=1,now=dist[i];
}
if(!flag) break; visit[a]=1;
for(i=0;i<n;i++){
if(!graph[a][i]) continue;
if(!dist[i] || dist[i]>dist[a]+graph[a][i]) dist[i]=dist[a]+graph[a][i];
}
}
}
int main(){
int i,j;
scanf("%d %d",&n,&m);
for(i=0;i<m;i++) scanf("%d %d",&arr[i].to,&arr[i].dist),visit[arr[i].to]=1;
for(i=0;i<m;i++){
for(j=0;j<n;j++){
if(!(abs(arr[i].to-j)%arr[i].dist)){
if(!graph[arr[i].to][j]) graph[arr[i].to][j]=abs(arr[i].to-j)/arr[i].dist;
else graph[arr[i].to][j]=min(graph[arr[i].to][j],abs(arr[i].to-j)/arr[i].dist);
}
}
}
memset(visit,0,sizeof(visit));
dist[arr[0].to]=1;
dij(0);
if(!visit[arr[1].to]) printf("-1");
else printf("%d",dist[arr[1].to]-1);
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
17108 KB |
Output is correct |
2 |
Correct |
0 ms |
17108 KB |
Output is correct |
3 |
Correct |
0 ms |
17108 KB |
Output is correct |
4 |
Correct |
0 ms |
17108 KB |
Output is correct |
5 |
Correct |
0 ms |
17108 KB |
Output is correct |
6 |
Correct |
0 ms |
17108 KB |
Output is correct |
7 |
Correct |
0 ms |
17108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
17108 KB |
Output is correct |
2 |
Correct |
0 ms |
17108 KB |
Output is correct |
3 |
Correct |
0 ms |
17108 KB |
Output is correct |
4 |
Correct |
0 ms |
17108 KB |
Output is correct |
5 |
Correct |
0 ms |
17108 KB |
Output is correct |
6 |
Correct |
0 ms |
17108 KB |
Output is correct |
7 |
Correct |
0 ms |
17108 KB |
Output is correct |
8 |
Correct |
0 ms |
17108 KB |
Output is correct |
9 |
Correct |
0 ms |
17108 KB |
Output is correct |
10 |
Correct |
0 ms |
17108 KB |
Output is correct |
11 |
Correct |
0 ms |
17108 KB |
Output is correct |
12 |
Correct |
0 ms |
17108 KB |
Output is correct |
13 |
Correct |
0 ms |
17108 KB |
Output is correct |
14 |
Correct |
0 ms |
17108 KB |
Output is correct |
15 |
Correct |
0 ms |
17108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
17108 KB |
Output is correct |
2 |
Correct |
0 ms |
17108 KB |
Output is correct |
3 |
Correct |
0 ms |
17108 KB |
Output is correct |
4 |
Correct |
0 ms |
17108 KB |
Output is correct |
5 |
Correct |
0 ms |
17108 KB |
Output is correct |
6 |
Correct |
0 ms |
17108 KB |
Output is correct |
7 |
Correct |
0 ms |
17108 KB |
Output is correct |
8 |
Correct |
0 ms |
17108 KB |
Output is correct |
9 |
Correct |
0 ms |
17108 KB |
Output is correct |
10 |
Correct |
0 ms |
17108 KB |
Output is correct |
11 |
Correct |
2 ms |
17108 KB |
Output is correct |
12 |
Correct |
0 ms |
17108 KB |
Output is correct |
13 |
Correct |
2 ms |
17108 KB |
Output is correct |
14 |
Correct |
0 ms |
17108 KB |
Output is correct |
15 |
Correct |
2 ms |
17108 KB |
Output is correct |
16 |
Correct |
2 ms |
17108 KB |
Output is correct |
17 |
Correct |
13 ms |
17108 KB |
Output is correct |
18 |
Correct |
13 ms |
17108 KB |
Output is correct |
19 |
Correct |
9 ms |
17108 KB |
Output is correct |
20 |
Correct |
41 ms |
17108 KB |
Output is correct |
21 |
Correct |
4 ms |
17108 KB |
Output is correct |
22 |
Correct |
10 ms |
17108 KB |
Output is correct |
23 |
Correct |
24 ms |
17108 KB |
Output is correct |
24 |
Correct |
37 ms |
17108 KB |
Output is correct |
25 |
Correct |
30 ms |
17108 KB |
Output is correct |
26 |
Correct |
45 ms |
17108 KB |
Output is correct |
27 |
Correct |
40 ms |
17108 KB |
Output is correct |
28 |
Correct |
42 ms |
17108 KB |
Output is correct |
29 |
Correct |
22 ms |
17108 KB |
Output is correct |
30 |
Correct |
15 ms |
17108 KB |
Output is correct |
31 |
Correct |
21 ms |
17108 KB |
Output is correct |
32 |
Correct |
19 ms |
17108 KB |
Output is correct |
33 |
Correct |
40 ms |
17108 KB |
Output is correct |
34 |
Correct |
39 ms |
17108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
17108 KB |
Output is correct |
2 |
Correct |
0 ms |
17108 KB |
Output is correct |
3 |
Correct |
0 ms |
17108 KB |
Output is correct |
4 |
Correct |
0 ms |
17108 KB |
Output is correct |
5 |
Correct |
0 ms |
17108 KB |
Output is correct |
6 |
Correct |
0 ms |
17108 KB |
Output is correct |
7 |
Correct |
0 ms |
17108 KB |
Output is correct |
8 |
Correct |
0 ms |
17108 KB |
Output is correct |
9 |
Correct |
0 ms |
17108 KB |
Output is correct |
10 |
Correct |
0 ms |
17108 KB |
Output is correct |
11 |
Correct |
0 ms |
17108 KB |
Output is correct |
12 |
Correct |
0 ms |
17108 KB |
Output is correct |
13 |
Correct |
0 ms |
17108 KB |
Output is correct |
14 |
Correct |
2 ms |
17108 KB |
Output is correct |
15 |
Correct |
0 ms |
17108 KB |
Output is correct |
16 |
Correct |
2 ms |
17108 KB |
Output is correct |
17 |
Correct |
12 ms |
17108 KB |
Output is correct |
18 |
Correct |
13 ms |
17108 KB |
Output is correct |
19 |
Correct |
9 ms |
17108 KB |
Output is correct |
20 |
Correct |
38 ms |
17108 KB |
Output is correct |
21 |
Correct |
4 ms |
17108 KB |
Output is correct |
22 |
Correct |
7 ms |
17108 KB |
Output is correct |
23 |
Correct |
20 ms |
17108 KB |
Output is correct |
24 |
Correct |
40 ms |
17108 KB |
Output is correct |
25 |
Correct |
41 ms |
17108 KB |
Output is correct |
26 |
Correct |
45 ms |
17108 KB |
Output is correct |
27 |
Correct |
41 ms |
17108 KB |
Output is correct |
28 |
Correct |
38 ms |
17108 KB |
Output is correct |
29 |
Correct |
19 ms |
17108 KB |
Output is correct |
30 |
Correct |
15 ms |
17108 KB |
Output is correct |
31 |
Correct |
21 ms |
17108 KB |
Output is correct |
32 |
Correct |
19 ms |
17108 KB |
Output is correct |
33 |
Correct |
40 ms |
17108 KB |
Output is correct |
34 |
Correct |
40 ms |
17108 KB |
Output is correct |
35 |
Correct |
226 ms |
17108 KB |
Output is correct |
36 |
Correct |
36 ms |
17108 KB |
Output is correct |
37 |
Correct |
247 ms |
17108 KB |
Output is correct |
38 |
Correct |
367 ms |
17108 KB |
Output is correct |
39 |
Correct |
372 ms |
17108 KB |
Output is correct |
40 |
Correct |
374 ms |
17108 KB |
Output is correct |
41 |
Correct |
372 ms |
17108 KB |
Output is correct |
42 |
Correct |
354 ms |
17108 KB |
Output is correct |
43 |
Correct |
355 ms |
17108 KB |
Output is correct |
44 |
Correct |
352 ms |
17108 KB |
Output is correct |
45 |
Correct |
399 ms |
17108 KB |
Output is correct |
46 |
Correct |
408 ms |
17108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
17108 KB |
Output is correct |
2 |
Correct |
0 ms |
17108 KB |
Output is correct |
3 |
Correct |
0 ms |
17108 KB |
Output is correct |
4 |
Correct |
0 ms |
17108 KB |
Output is correct |
5 |
Correct |
0 ms |
17108 KB |
Output is correct |
6 |
Correct |
0 ms |
17108 KB |
Output is correct |
7 |
Correct |
0 ms |
17108 KB |
Output is correct |
8 |
Correct |
0 ms |
17108 KB |
Output is correct |
9 |
Correct |
0 ms |
17108 KB |
Output is correct |
10 |
Correct |
0 ms |
17108 KB |
Output is correct |
11 |
Correct |
0 ms |
17108 KB |
Output is correct |
12 |
Correct |
0 ms |
17108 KB |
Output is correct |
13 |
Correct |
0 ms |
17108 KB |
Output is correct |
14 |
Correct |
2 ms |
17108 KB |
Output is correct |
15 |
Correct |
0 ms |
17108 KB |
Output is correct |
16 |
Correct |
0 ms |
17108 KB |
Output is correct |
17 |
Correct |
8 ms |
17108 KB |
Output is correct |
18 |
Correct |
12 ms |
17108 KB |
Output is correct |
19 |
Correct |
9 ms |
17108 KB |
Output is correct |
20 |
Correct |
41 ms |
17108 KB |
Output is correct |
21 |
Correct |
4 ms |
17108 KB |
Output is correct |
22 |
Correct |
6 ms |
17108 KB |
Output is correct |
23 |
Correct |
24 ms |
17108 KB |
Output is correct |
24 |
Correct |
40 ms |
17108 KB |
Output is correct |
25 |
Correct |
37 ms |
17108 KB |
Output is correct |
26 |
Correct |
41 ms |
17108 KB |
Output is correct |
27 |
Correct |
44 ms |
17108 KB |
Output is correct |
28 |
Correct |
38 ms |
17108 KB |
Output is correct |
29 |
Correct |
22 ms |
17108 KB |
Output is correct |
30 |
Correct |
11 ms |
17108 KB |
Output is correct |
31 |
Correct |
16 ms |
17108 KB |
Output is correct |
32 |
Correct |
19 ms |
17108 KB |
Output is correct |
33 |
Correct |
40 ms |
17108 KB |
Output is correct |
34 |
Correct |
39 ms |
17108 KB |
Output is correct |
35 |
Correct |
220 ms |
17108 KB |
Output is correct |
36 |
Correct |
37 ms |
17108 KB |
Output is correct |
37 |
Correct |
256 ms |
17108 KB |
Output is correct |
38 |
Correct |
364 ms |
17108 KB |
Output is correct |
39 |
Correct |
370 ms |
17108 KB |
Output is correct |
40 |
Correct |
369 ms |
17108 KB |
Output is correct |
41 |
Correct |
366 ms |
17108 KB |
Output is correct |
42 |
Correct |
356 ms |
17108 KB |
Output is correct |
43 |
Correct |
360 ms |
17108 KB |
Output is correct |
44 |
Correct |
352 ms |
17108 KB |
Output is correct |
45 |
Correct |
405 ms |
17108 KB |
Output is correct |
46 |
Correct |
404 ms |
17108 KB |
Output is correct |
47 |
Runtime error |
0 ms |
17104 KB |
SIGSEGV Segmentation fault |
48 |
Halted |
0 ms |
0 KB |
- |