#include <iostream>
#include <bits/stdc++.h>
using namespace std;
typedef int64_t llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
int n,m;
int aa,bb;
int ss=180;
vector<pair<pair<int,int>,int>> adj[30001][180];//((index,power),dist)
int dist[30001][180];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin>>n>>m;
int st;
int endd;
memset(dist,-1,sizeof(dist));
for(int j=0;j<m;j++){
cin>>aa>>bb;
if(j==0){
st=aa;
}
if(j==1){
endd=aa;
}
if(bb>=ss){
for(int i=aa+bb;i<n;i+=bb){
adj[aa][0].pb({{i,0},(i-aa)/bb});
}
for(int i=aa-bb;i>=0;i-=bb){
adj[aa][0].pb({{i,0},(aa-i)/bb});
}
}
else{
adj[aa][0].pb({{aa,bb},0});
// adj[aa][bb].pb({{aa,0},0});
}
}
for(int i=0;i<n;i++){
for(int j=1;j<180;j++){
if(i+j<n){
adj[i][j].pb({{i+j,j},1});
}
if(i-j>=0 and i-j<n){
adj[i][j].pb({{i-j,j},1});
}
adj[i][j].pb({{i,0},0});
}
}
priority_queue<pair<int,pair<int,int>>> ac;
ac.push({0,{st,0}});
dist[st][0]=0;
while(ac.size()){
pair<int,pair<int,int>> no=ac.top();
ac.pop();
no.a=-no.a;
// cout<<no.b.a<<","<<no.b.b<<","<<no.a<<endl;
for(auto j:adj[no.b.a][no.b.b]){
if(dist[j.a.a][j.a.b]==-1 or dist[j.a.a][j.a.b]>dist[no.b.a][no.b.b]+j.b){
dist[j.a.a][j.a.b]=dist[no.b.a][no.b.b]+j.b;
ac.push({-dist[j.a.a][j.a.b],{j.a}});
}
}
}
cout<<dist[endd][0]<<endl;
return 0;
}
Compilation message
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:56:13: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
dist[st][0]=0;
~~~~~~~~~~~^~
skyscraper.cpp:69:20: warning: 'endd' may be used uninitialized in this function [-Wmaybe-uninitialized]
cout<<dist[endd][0]<<endl;
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
93 ms |
148344 KB |
Output is correct |
2 |
Correct |
91 ms |
148332 KB |
Output is correct |
3 |
Correct |
92 ms |
148344 KB |
Output is correct |
4 |
Correct |
93 ms |
148344 KB |
Output is correct |
5 |
Correct |
96 ms |
148344 KB |
Output is correct |
6 |
Correct |
95 ms |
148344 KB |
Output is correct |
7 |
Correct |
91 ms |
148348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
93 ms |
148344 KB |
Output is correct |
2 |
Correct |
91 ms |
148216 KB |
Output is correct |
3 |
Correct |
91 ms |
148344 KB |
Output is correct |
4 |
Correct |
92 ms |
148344 KB |
Output is correct |
5 |
Correct |
94 ms |
148344 KB |
Output is correct |
6 |
Correct |
96 ms |
148324 KB |
Output is correct |
7 |
Correct |
92 ms |
148344 KB |
Output is correct |
8 |
Correct |
94 ms |
148440 KB |
Output is correct |
9 |
Correct |
93 ms |
148600 KB |
Output is correct |
10 |
Correct |
91 ms |
148984 KB |
Output is correct |
11 |
Correct |
95 ms |
148984 KB |
Output is correct |
12 |
Correct |
92 ms |
148984 KB |
Output is correct |
13 |
Correct |
91 ms |
148984 KB |
Output is correct |
14 |
Correct |
98 ms |
148984 KB |
Output is correct |
15 |
Correct |
96 ms |
148988 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
95 ms |
148280 KB |
Output is correct |
2 |
Correct |
92 ms |
148216 KB |
Output is correct |
3 |
Correct |
91 ms |
148344 KB |
Output is correct |
4 |
Correct |
91 ms |
148344 KB |
Output is correct |
5 |
Correct |
89 ms |
148344 KB |
Output is correct |
6 |
Correct |
92 ms |
148344 KB |
Output is correct |
7 |
Correct |
92 ms |
148344 KB |
Output is correct |
8 |
Correct |
90 ms |
148472 KB |
Output is correct |
9 |
Correct |
90 ms |
148600 KB |
Output is correct |
10 |
Correct |
93 ms |
148984 KB |
Output is correct |
11 |
Correct |
91 ms |
148984 KB |
Output is correct |
12 |
Correct |
92 ms |
148984 KB |
Output is correct |
13 |
Correct |
94 ms |
148984 KB |
Output is correct |
14 |
Correct |
92 ms |
148984 KB |
Output is correct |
15 |
Correct |
102 ms |
149108 KB |
Output is correct |
16 |
Correct |
95 ms |
149752 KB |
Output is correct |
17 |
Correct |
116 ms |
155640 KB |
Output is correct |
18 |
Correct |
135 ms |
166904 KB |
Output is correct |
19 |
Correct |
148 ms |
169848 KB |
Output is correct |
20 |
Correct |
145 ms |
169820 KB |
Output is correct |
21 |
Correct |
108 ms |
151672 KB |
Output is correct |
22 |
Correct |
138 ms |
167292 KB |
Output is correct |
23 |
Correct |
134 ms |
165240 KB |
Output is correct |
24 |
Correct |
147 ms |
168700 KB |
Output is correct |
25 |
Correct |
150 ms |
169720 KB |
Output is correct |
26 |
Correct |
147 ms |
169720 KB |
Output is correct |
27 |
Correct |
146 ms |
169720 KB |
Output is correct |
28 |
Correct |
154 ms |
169848 KB |
Output is correct |
29 |
Correct |
163 ms |
169776 KB |
Output is correct |
30 |
Correct |
171 ms |
169688 KB |
Output is correct |
31 |
Correct |
156 ms |
169820 KB |
Output is correct |
32 |
Correct |
149 ms |
169720 KB |
Output is correct |
33 |
Correct |
174 ms |
169720 KB |
Output is correct |
34 |
Correct |
179 ms |
169736 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
91 ms |
148344 KB |
Output is correct |
2 |
Correct |
92 ms |
148216 KB |
Output is correct |
3 |
Correct |
90 ms |
148344 KB |
Output is correct |
4 |
Correct |
91 ms |
148320 KB |
Output is correct |
5 |
Correct |
92 ms |
148348 KB |
Output is correct |
6 |
Correct |
90 ms |
148344 KB |
Output is correct |
7 |
Correct |
90 ms |
148344 KB |
Output is correct |
8 |
Correct |
91 ms |
148476 KB |
Output is correct |
9 |
Correct |
92 ms |
148600 KB |
Output is correct |
10 |
Correct |
92 ms |
148984 KB |
Output is correct |
11 |
Correct |
94 ms |
149240 KB |
Output is correct |
12 |
Correct |
94 ms |
148920 KB |
Output is correct |
13 |
Correct |
92 ms |
148984 KB |
Output is correct |
14 |
Correct |
94 ms |
148984 KB |
Output is correct |
15 |
Correct |
92 ms |
148984 KB |
Output is correct |
16 |
Correct |
92 ms |
149752 KB |
Output is correct |
17 |
Correct |
111 ms |
155768 KB |
Output is correct |
18 |
Correct |
135 ms |
166904 KB |
Output is correct |
19 |
Correct |
150 ms |
169720 KB |
Output is correct |
20 |
Correct |
153 ms |
169720 KB |
Output is correct |
21 |
Correct |
103 ms |
151672 KB |
Output is correct |
22 |
Correct |
142 ms |
167288 KB |
Output is correct |
23 |
Correct |
137 ms |
165368 KB |
Output is correct |
24 |
Correct |
152 ms |
168696 KB |
Output is correct |
25 |
Correct |
152 ms |
169720 KB |
Output is correct |
26 |
Correct |
151 ms |
169720 KB |
Output is correct |
27 |
Correct |
155 ms |
169696 KB |
Output is correct |
28 |
Correct |
153 ms |
169848 KB |
Output is correct |
29 |
Correct |
161 ms |
169720 KB |
Output is correct |
30 |
Correct |
154 ms |
169720 KB |
Output is correct |
31 |
Correct |
156 ms |
169848 KB |
Output is correct |
32 |
Correct |
155 ms |
169720 KB |
Output is correct |
33 |
Correct |
182 ms |
169848 KB |
Output is correct |
34 |
Correct |
184 ms |
169976 KB |
Output is correct |
35 |
Correct |
163 ms |
164216 KB |
Output is correct |
36 |
Correct |
125 ms |
159608 KB |
Output is correct |
37 |
Correct |
211 ms |
170232 KB |
Output is correct |
38 |
Correct |
205 ms |
171064 KB |
Output is correct |
39 |
Correct |
196 ms |
171000 KB |
Output is correct |
40 |
Correct |
193 ms |
171004 KB |
Output is correct |
41 |
Correct |
199 ms |
171132 KB |
Output is correct |
42 |
Correct |
194 ms |
170228 KB |
Output is correct |
43 |
Correct |
168 ms |
170208 KB |
Output is correct |
44 |
Correct |
159 ms |
170248 KB |
Output is correct |
45 |
Correct |
275 ms |
172856 KB |
Output is correct |
46 |
Correct |
242 ms |
172800 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
98 ms |
148344 KB |
Output is correct |
2 |
Correct |
94 ms |
148216 KB |
Output is correct |
3 |
Correct |
91 ms |
148320 KB |
Output is correct |
4 |
Correct |
94 ms |
148344 KB |
Output is correct |
5 |
Correct |
99 ms |
148320 KB |
Output is correct |
6 |
Correct |
91 ms |
148320 KB |
Output is correct |
7 |
Correct |
96 ms |
148272 KB |
Output is correct |
8 |
Correct |
95 ms |
148472 KB |
Output is correct |
9 |
Correct |
90 ms |
148600 KB |
Output is correct |
10 |
Correct |
93 ms |
148984 KB |
Output is correct |
11 |
Correct |
105 ms |
148984 KB |
Output is correct |
12 |
Correct |
99 ms |
148988 KB |
Output is correct |
13 |
Correct |
94 ms |
148988 KB |
Output is correct |
14 |
Correct |
98 ms |
149012 KB |
Output is correct |
15 |
Correct |
93 ms |
148988 KB |
Output is correct |
16 |
Correct |
100 ms |
149752 KB |
Output is correct |
17 |
Correct |
113 ms |
155640 KB |
Output is correct |
18 |
Correct |
138 ms |
166904 KB |
Output is correct |
19 |
Correct |
146 ms |
169720 KB |
Output is correct |
20 |
Correct |
144 ms |
169720 KB |
Output is correct |
21 |
Correct |
103 ms |
151732 KB |
Output is correct |
22 |
Correct |
148 ms |
167416 KB |
Output is correct |
23 |
Correct |
137 ms |
165240 KB |
Output is correct |
24 |
Correct |
152 ms |
168696 KB |
Output is correct |
25 |
Correct |
161 ms |
169848 KB |
Output is correct |
26 |
Correct |
154 ms |
169696 KB |
Output is correct |
27 |
Correct |
150 ms |
169720 KB |
Output is correct |
28 |
Correct |
150 ms |
169720 KB |
Output is correct |
29 |
Correct |
170 ms |
169720 KB |
Output is correct |
30 |
Correct |
154 ms |
169848 KB |
Output is correct |
31 |
Correct |
153 ms |
169720 KB |
Output is correct |
32 |
Correct |
149 ms |
169720 KB |
Output is correct |
33 |
Correct |
183 ms |
169804 KB |
Output is correct |
34 |
Correct |
180 ms |
169848 KB |
Output is correct |
35 |
Correct |
161 ms |
164220 KB |
Output is correct |
36 |
Correct |
129 ms |
159612 KB |
Output is correct |
37 |
Correct |
197 ms |
170360 KB |
Output is correct |
38 |
Correct |
190 ms |
171000 KB |
Output is correct |
39 |
Correct |
200 ms |
171092 KB |
Output is correct |
40 |
Correct |
196 ms |
171000 KB |
Output is correct |
41 |
Correct |
189 ms |
171000 KB |
Output is correct |
42 |
Correct |
156 ms |
170356 KB |
Output is correct |
43 |
Correct |
164 ms |
170232 KB |
Output is correct |
44 |
Correct |
154 ms |
170376 KB |
Output is correct |
45 |
Correct |
245 ms |
172856 KB |
Output is correct |
46 |
Correct |
227 ms |
172976 KB |
Output is correct |
47 |
Runtime error |
343 ms |
262144 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
48 |
Halted |
0 ms |
0 KB |
- |