#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#define f(i,a,b) for( ll i = a; i < b ; i++ )
#define af(i,a,b) for( ll i = a; i >= b ; i--)
#define rep(i,a,b,k) for(ll i = a; i < b ; i+= k )
#define arep(i,a,b,k) for( ll i = a; i >= b ; i-= k)
#define ones(ini) (ll) __builtin_popcountll(x)
#define cuantos(a,x) count(all(a),x)
#define fs first
#define sc second
#define pb push_back
#define po pop_back
#define sz(a) (ll) a.size()
#define all(a) a.begin(), a.end()
#define sor(a) sort( a.begin(), a.end() )
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define ller ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr)
#define watch(x) cout << (#x) << " is " << (x) <<"\n"
#define test ll deftestcases;cin>>deftestcases;while(deftestcases--)
#define PI acos(-1)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> ii;
typedef vector<ll> vi;
typedef vector<ii> vii;
template<class T> using ordered_set =tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update> ;
const ll inf = 2e18;
const ll mod = 1e9+7;
const ll MAX = 1e5+10;
vii adj[MAX];
vi aux[MAX];
ll dis[MAX];
void dijkstra(ll root,ll n){
f(i,0,n+4){
dis[i] = -1;
}
priority_queue<ii,vii,greater<ii>> pq;
dis[root] = 0;
pq.push({dis[root],root});
while(sz(pq)){
ll u = pq.top().sc;
ll d = pq.top().fs;
pq.pop();
if(dis[u]!=d) continue;
for(auto v : adj[u]){
ll to = v.fs,w = v.sc;
if(dis[to]==-1 || dis[u]+w<dis[to]){
dis[to] = dis[u]+w;
pq.push({dis[to],to});
}
}
}
}
void ida(ll u,ll n){
for(auto pod : aux[u]){
ll to = 0,mul=1;
while(to<=n){
to = pod*mul+u;
if(to>=n) break;
adj[u].pb({to,mul});
mul++;
}
}
}
void vuelta(ll u){
for(auto pod : aux[u]){
ll to = 0,mul=1;
while(to>=0){
to = u-pod*mul;
if(to<0) break;
adj[u].pb({to,mul});
mul++;
}
}
}
int main(){
fastio;
ll n,m;cin>>n>>m;
ll ini,meta;
f(i,0,m){
ll b,p;cin>>b>>p;
if(!i) ini = b;
if(i==1) meta = b;
aux[b].pb(p);
}
f(u,0,n){
ida(u,n);
vuelta(u);
}
dijkstra(ini,n);
cout<<dis[meta]<<"\n";
return 0;
}
Compilation message
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:97:19: warning: 'meta' may be used uninitialized in this function [-Wmaybe-uninitialized]
97 | cout<<dis[meta]<<"\n";
| ^
skyscraper.cpp:96:13: warning: 'ini' may be used uninitialized in this function [-Wmaybe-uninitialized]
96 | dijkstra(ini,n);
| ~~~~~~~~^~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4940 KB |
Output is correct |
2 |
Correct |
4 ms |
4940 KB |
Output is correct |
3 |
Correct |
3 ms |
5024 KB |
Output is correct |
4 |
Correct |
3 ms |
4940 KB |
Output is correct |
5 |
Correct |
3 ms |
4940 KB |
Output is correct |
6 |
Correct |
3 ms |
5024 KB |
Output is correct |
7 |
Correct |
3 ms |
4940 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5020 KB |
Output is correct |
2 |
Correct |
3 ms |
4940 KB |
Output is correct |
3 |
Correct |
3 ms |
4940 KB |
Output is correct |
4 |
Correct |
3 ms |
4940 KB |
Output is correct |
5 |
Correct |
3 ms |
5024 KB |
Output is correct |
6 |
Correct |
3 ms |
4940 KB |
Output is correct |
7 |
Correct |
3 ms |
5020 KB |
Output is correct |
8 |
Correct |
4 ms |
5068 KB |
Output is correct |
9 |
Correct |
3 ms |
4940 KB |
Output is correct |
10 |
Correct |
4 ms |
5020 KB |
Output is correct |
11 |
Correct |
4 ms |
5196 KB |
Output is correct |
12 |
Correct |
7 ms |
9288 KB |
Output is correct |
13 |
Correct |
8 ms |
9404 KB |
Output is correct |
14 |
Correct |
4 ms |
5068 KB |
Output is correct |
15 |
Correct |
4 ms |
5160 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5024 KB |
Output is correct |
2 |
Correct |
4 ms |
4940 KB |
Output is correct |
3 |
Correct |
4 ms |
4940 KB |
Output is correct |
4 |
Correct |
3 ms |
5024 KB |
Output is correct |
5 |
Correct |
4 ms |
4956 KB |
Output is correct |
6 |
Correct |
3 ms |
4940 KB |
Output is correct |
7 |
Correct |
4 ms |
4940 KB |
Output is correct |
8 |
Correct |
3 ms |
4940 KB |
Output is correct |
9 |
Correct |
4 ms |
4940 KB |
Output is correct |
10 |
Correct |
4 ms |
5068 KB |
Output is correct |
11 |
Correct |
4 ms |
5196 KB |
Output is correct |
12 |
Correct |
8 ms |
9252 KB |
Output is correct |
13 |
Correct |
8 ms |
9408 KB |
Output is correct |
14 |
Correct |
4 ms |
5068 KB |
Output is correct |
15 |
Correct |
4 ms |
5164 KB |
Output is correct |
16 |
Correct |
5 ms |
5068 KB |
Output is correct |
17 |
Correct |
5 ms |
5580 KB |
Output is correct |
18 |
Correct |
4 ms |
5196 KB |
Output is correct |
19 |
Correct |
4 ms |
5068 KB |
Output is correct |
20 |
Correct |
61 ms |
69248 KB |
Output is correct |
21 |
Correct |
4 ms |
5068 KB |
Output is correct |
22 |
Correct |
4 ms |
5068 KB |
Output is correct |
23 |
Correct |
4 ms |
5196 KB |
Output is correct |
24 |
Correct |
5 ms |
5324 KB |
Output is correct |
25 |
Correct |
4 ms |
5324 KB |
Output is correct |
26 |
Correct |
79 ms |
70884 KB |
Output is correct |
27 |
Correct |
74 ms |
70840 KB |
Output is correct |
28 |
Correct |
4 ms |
5452 KB |
Output is correct |
29 |
Correct |
6 ms |
6560 KB |
Output is correct |
30 |
Correct |
5 ms |
5536 KB |
Output is correct |
31 |
Correct |
5 ms |
5964 KB |
Output is correct |
32 |
Correct |
5 ms |
5580 KB |
Output is correct |
33 |
Correct |
8 ms |
7596 KB |
Output is correct |
34 |
Correct |
8 ms |
7500 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4940 KB |
Output is correct |
2 |
Correct |
3 ms |
4940 KB |
Output is correct |
3 |
Correct |
3 ms |
5024 KB |
Output is correct |
4 |
Correct |
3 ms |
4940 KB |
Output is correct |
5 |
Correct |
3 ms |
4940 KB |
Output is correct |
6 |
Correct |
3 ms |
4940 KB |
Output is correct |
7 |
Correct |
3 ms |
4940 KB |
Output is correct |
8 |
Correct |
3 ms |
5024 KB |
Output is correct |
9 |
Correct |
3 ms |
4940 KB |
Output is correct |
10 |
Correct |
4 ms |
5068 KB |
Output is correct |
11 |
Correct |
4 ms |
5196 KB |
Output is correct |
12 |
Correct |
8 ms |
9256 KB |
Output is correct |
13 |
Correct |
8 ms |
9404 KB |
Output is correct |
14 |
Correct |
4 ms |
5068 KB |
Output is correct |
15 |
Correct |
5 ms |
5156 KB |
Output is correct |
16 |
Correct |
5 ms |
5152 KB |
Output is correct |
17 |
Correct |
5 ms |
5548 KB |
Output is correct |
18 |
Correct |
4 ms |
5196 KB |
Output is correct |
19 |
Correct |
4 ms |
5156 KB |
Output is correct |
20 |
Correct |
62 ms |
69284 KB |
Output is correct |
21 |
Correct |
4 ms |
5028 KB |
Output is correct |
22 |
Correct |
4 ms |
5068 KB |
Output is correct |
23 |
Correct |
4 ms |
5196 KB |
Output is correct |
24 |
Correct |
5 ms |
5324 KB |
Output is correct |
25 |
Correct |
4 ms |
5324 KB |
Output is correct |
26 |
Correct |
76 ms |
70900 KB |
Output is correct |
27 |
Correct |
74 ms |
70856 KB |
Output is correct |
28 |
Correct |
5 ms |
5452 KB |
Output is correct |
29 |
Correct |
6 ms |
6564 KB |
Output is correct |
30 |
Correct |
4 ms |
5580 KB |
Output is correct |
31 |
Correct |
5 ms |
5964 KB |
Output is correct |
32 |
Correct |
4 ms |
5580 KB |
Output is correct |
33 |
Correct |
7 ms |
7500 KB |
Output is correct |
34 |
Correct |
8 ms |
7500 KB |
Output is correct |
35 |
Correct |
13 ms |
8524 KB |
Output is correct |
36 |
Correct |
5 ms |
5452 KB |
Output is correct |
37 |
Correct |
14 ms |
11568 KB |
Output is correct |
38 |
Correct |
16 ms |
10572 KB |
Output is correct |
39 |
Correct |
19 ms |
10812 KB |
Output is correct |
40 |
Correct |
16 ms |
10668 KB |
Output is correct |
41 |
Correct |
17 ms |
10444 KB |
Output is correct |
42 |
Runtime error |
252 ms |
262148 KB |
Execution killed with signal 9 |
43 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
5024 KB |
Output is correct |
2 |
Correct |
4 ms |
4940 KB |
Output is correct |
3 |
Correct |
3 ms |
5020 KB |
Output is correct |
4 |
Correct |
4 ms |
4940 KB |
Output is correct |
5 |
Correct |
3 ms |
4940 KB |
Output is correct |
6 |
Correct |
3 ms |
4940 KB |
Output is correct |
7 |
Correct |
3 ms |
4940 KB |
Output is correct |
8 |
Correct |
3 ms |
4940 KB |
Output is correct |
9 |
Correct |
4 ms |
4940 KB |
Output is correct |
10 |
Correct |
4 ms |
5068 KB |
Output is correct |
11 |
Correct |
5 ms |
5196 KB |
Output is correct |
12 |
Correct |
8 ms |
9244 KB |
Output is correct |
13 |
Correct |
8 ms |
9404 KB |
Output is correct |
14 |
Correct |
4 ms |
5068 KB |
Output is correct |
15 |
Correct |
4 ms |
5160 KB |
Output is correct |
16 |
Correct |
4 ms |
5068 KB |
Output is correct |
17 |
Correct |
5 ms |
5580 KB |
Output is correct |
18 |
Correct |
4 ms |
5196 KB |
Output is correct |
19 |
Correct |
5 ms |
5068 KB |
Output is correct |
20 |
Correct |
69 ms |
69324 KB |
Output is correct |
21 |
Correct |
4 ms |
5068 KB |
Output is correct |
22 |
Correct |
4 ms |
5156 KB |
Output is correct |
23 |
Correct |
4 ms |
5196 KB |
Output is correct |
24 |
Correct |
5 ms |
5344 KB |
Output is correct |
25 |
Correct |
5 ms |
5324 KB |
Output is correct |
26 |
Correct |
84 ms |
70996 KB |
Output is correct |
27 |
Correct |
81 ms |
70864 KB |
Output is correct |
28 |
Correct |
6 ms |
5452 KB |
Output is correct |
29 |
Correct |
6 ms |
6476 KB |
Output is correct |
30 |
Correct |
5 ms |
5580 KB |
Output is correct |
31 |
Correct |
6 ms |
5964 KB |
Output is correct |
32 |
Correct |
6 ms |
5580 KB |
Output is correct |
33 |
Correct |
8 ms |
7536 KB |
Output is correct |
34 |
Correct |
8 ms |
7500 KB |
Output is correct |
35 |
Correct |
13 ms |
8524 KB |
Output is correct |
36 |
Correct |
6 ms |
5548 KB |
Output is correct |
37 |
Correct |
15 ms |
11608 KB |
Output is correct |
38 |
Correct |
16 ms |
10572 KB |
Output is correct |
39 |
Correct |
17 ms |
10884 KB |
Output is correct |
40 |
Correct |
17 ms |
10828 KB |
Output is correct |
41 |
Correct |
16 ms |
10444 KB |
Output is correct |
42 |
Runtime error |
229 ms |
262148 KB |
Execution killed with signal 9 |
43 |
Halted |
0 ms |
0 KB |
- |