#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<vii> vvii;
int main(){
int l,n;
cin >> l >> n;
vii v(n);
int a=1,b=0;
//for (int i=0;i<n;i++){
// if (b<a) v[i]=pii{a*(a-1)/2+b,a};
// else{b=0;a++;};
//}
//v[1]=pii{n-1,n-1};
for (int i=0;i<n;i++) cin >> v[i].first >> v[i].second;
pii in=v[0];
pii fin=v[1];
sort(v.begin(),v.end());
int inicio,final;
for (int i=0;i<n;i++){
if (v[i]==in) inicio=i;
if (v[i]==fin) final=i;
}
vvii conexiones(n);
for (int i=0;i<n;i++){
pii x=v[i];
for (int j=i-1;j>=0;j--){
pii y=v[j];
if (y.first%x.second==x.first%x.second){
conexiones[i].push_back(pii{abs(x.first-y.first)/x.second,j});
if (x.second==y.second) break;
}
}
for (int j=i+1;j<n;j++){
pii y=v[j];
if (y.first%x.second==x.first%x.second){
conexiones[i].push_back(pii{abs(x.first-y.first)/x.second,j});
if (x.second==y.second) break;
}
}
}
priority_queue<pii> cola;
cola.push(pii{0,inicio});
bool T=true;
vi porvisitar(n,true);
//for (int i=0;i<n;i++){
// for (pii x:conexiones[i]) cerr << x.second<<' '<<x.first<<' '<<' ';
// cerr<<'\n';
//}
while (cola.size()){
pii x=cola.top();
cola.pop();
if (porvisitar[x.second]){
porvisitar[x.second]=false;
if (x.second==final){
T=false;
cout << -x.first << '\n';
break;
}
for (pii y:conexiones[x.second]){
if (porvisitar[y.second]) cola.push(pii{x.first-y.first,y.second});
}
}
}
if (T) cout << -1<<'\n';
}
Compilation message
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:14:9: warning: unused variable 'a' [-Wunused-variable]
14 | int a=1,b=0;
| ^
skyscraper.cpp:14:13: warning: unused variable 'b' [-Wunused-variable]
14 | int a=1,b=0;
| ^
skyscraper.cpp:69:13: warning: 'final' may be used uninitialized in this function [-Wmaybe-uninitialized]
69 | if (x.second==final){
| ^~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
2 ms |
204 KB |
Output is correct |
10 |
Correct |
2 ms |
332 KB |
Output is correct |
11 |
Correct |
22 ms |
1484 KB |
Output is correct |
12 |
Correct |
3 ms |
972 KB |
Output is correct |
13 |
Correct |
2 ms |
336 KB |
Output is correct |
14 |
Correct |
31 ms |
1740 KB |
Output is correct |
15 |
Correct |
30 ms |
1824 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
208 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
2 ms |
332 KB |
Output is correct |
11 |
Correct |
21 ms |
1484 KB |
Output is correct |
12 |
Correct |
3 ms |
972 KB |
Output is correct |
13 |
Correct |
2 ms |
332 KB |
Output is correct |
14 |
Correct |
30 ms |
1732 KB |
Output is correct |
15 |
Correct |
30 ms |
1784 KB |
Output is correct |
16 |
Correct |
5 ms |
444 KB |
Output is correct |
17 |
Correct |
21 ms |
968 KB |
Output is correct |
18 |
Correct |
7 ms |
332 KB |
Output is correct |
19 |
Correct |
3 ms |
332 KB |
Output is correct |
20 |
Correct |
2 ms |
332 KB |
Output is correct |
21 |
Correct |
9 ms |
332 KB |
Output is correct |
22 |
Correct |
5 ms |
424 KB |
Output is correct |
23 |
Correct |
7 ms |
332 KB |
Output is correct |
24 |
Correct |
22 ms |
476 KB |
Output is correct |
25 |
Correct |
24 ms |
400 KB |
Output is correct |
26 |
Correct |
4 ms |
460 KB |
Output is correct |
27 |
Correct |
19 ms |
7312 KB |
Output is correct |
28 |
Correct |
24 ms |
580 KB |
Output is correct |
29 |
Correct |
6 ms |
584 KB |
Output is correct |
30 |
Correct |
1 ms |
204 KB |
Output is correct |
31 |
Correct |
4 ms |
332 KB |
Output is correct |
32 |
Correct |
3 ms |
332 KB |
Output is correct |
33 |
Correct |
31 ms |
1852 KB |
Output is correct |
34 |
Correct |
31 ms |
1868 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
208 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
2 ms |
336 KB |
Output is correct |
11 |
Correct |
21 ms |
1604 KB |
Output is correct |
12 |
Correct |
3 ms |
972 KB |
Output is correct |
13 |
Correct |
2 ms |
332 KB |
Output is correct |
14 |
Correct |
31 ms |
1736 KB |
Output is correct |
15 |
Correct |
30 ms |
1760 KB |
Output is correct |
16 |
Correct |
5 ms |
460 KB |
Output is correct |
17 |
Correct |
21 ms |
972 KB |
Output is correct |
18 |
Correct |
7 ms |
336 KB |
Output is correct |
19 |
Correct |
3 ms |
332 KB |
Output is correct |
20 |
Correct |
2 ms |
332 KB |
Output is correct |
21 |
Correct |
9 ms |
360 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
7 ms |
332 KB |
Output is correct |
24 |
Correct |
22 ms |
460 KB |
Output is correct |
25 |
Correct |
26 ms |
432 KB |
Output is correct |
26 |
Correct |
3 ms |
460 KB |
Output is correct |
27 |
Correct |
19 ms |
7324 KB |
Output is correct |
28 |
Correct |
24 ms |
580 KB |
Output is correct |
29 |
Correct |
6 ms |
588 KB |
Output is correct |
30 |
Correct |
1 ms |
204 KB |
Output is correct |
31 |
Correct |
4 ms |
332 KB |
Output is correct |
32 |
Correct |
3 ms |
460 KB |
Output is correct |
33 |
Correct |
30 ms |
1800 KB |
Output is correct |
34 |
Correct |
33 ms |
1752 KB |
Output is correct |
35 |
Execution timed out |
1088 ms |
7768 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
208 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
208 KB |
Output is correct |
10 |
Correct |
2 ms |
332 KB |
Output is correct |
11 |
Correct |
22 ms |
1580 KB |
Output is correct |
12 |
Correct |
3 ms |
972 KB |
Output is correct |
13 |
Correct |
2 ms |
332 KB |
Output is correct |
14 |
Correct |
30 ms |
1840 KB |
Output is correct |
15 |
Correct |
31 ms |
1768 KB |
Output is correct |
16 |
Correct |
5 ms |
460 KB |
Output is correct |
17 |
Correct |
21 ms |
952 KB |
Output is correct |
18 |
Correct |
7 ms |
332 KB |
Output is correct |
19 |
Correct |
3 ms |
332 KB |
Output is correct |
20 |
Correct |
2 ms |
332 KB |
Output is correct |
21 |
Correct |
9 ms |
332 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
7 ms |
332 KB |
Output is correct |
24 |
Correct |
22 ms |
560 KB |
Output is correct |
25 |
Correct |
24 ms |
412 KB |
Output is correct |
26 |
Correct |
4 ms |
460 KB |
Output is correct |
27 |
Correct |
21 ms |
7584 KB |
Output is correct |
28 |
Correct |
24 ms |
588 KB |
Output is correct |
29 |
Correct |
6 ms |
588 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
4 ms |
332 KB |
Output is correct |
32 |
Correct |
3 ms |
332 KB |
Output is correct |
33 |
Correct |
31 ms |
1732 KB |
Output is correct |
34 |
Correct |
31 ms |
1760 KB |
Output is correct |
35 |
Execution timed out |
1090 ms |
7804 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |