#include<bits/stdc++.h>
#define f first
#define s second
using namespace std;
const int N=1e7+5,mod=1e9+7;
int t,x[N],y[N],n;
stack<int> s;
main(){
ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
cin>>n;
for(int i=1;i<=n;i++){
cin>>x[i]>>y[i];
while(s.size() && x[s.top()]-y[s.top()]>=x[i]-y[i]) s.pop();
if(!s.size() || x[s.top()]+y[s.top()]<x[i]+y[i]) s.push(i);
}
cout<<s.size();
}
Compilation message
lightningrod.cpp:8:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
8 | main(){
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1837 ms |
148448 KB |
Output is correct |
2 |
Correct |
1822 ms |
154840 KB |
Output is correct |
3 |
Correct |
1779 ms |
147164 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Correct |
0 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Correct |
0 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Correct |
0 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Correct |
0 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
45 ms |
1772 KB |
Output is correct |
15 |
Correct |
46 ms |
1900 KB |
Output is correct |
16 |
Correct |
48 ms |
2156 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1861 ms |
120456 KB |
Output is correct |
2 |
Correct |
1860 ms |
132304 KB |
Output is correct |
3 |
Correct |
1802 ms |
128984 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1837 ms |
148448 KB |
Output is correct |
2 |
Correct |
1822 ms |
154840 KB |
Output is correct |
3 |
Correct |
1779 ms |
147164 KB |
Output is correct |
4 |
Correct |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
0 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
0 ms |
364 KB |
Output is correct |
10 |
Correct |
0 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
1 ms |
364 KB |
Output is correct |
17 |
Correct |
45 ms |
1772 KB |
Output is correct |
18 |
Correct |
46 ms |
1900 KB |
Output is correct |
19 |
Correct |
48 ms |
2156 KB |
Output is correct |
20 |
Correct |
1861 ms |
120456 KB |
Output is correct |
21 |
Correct |
1860 ms |
132304 KB |
Output is correct |
22 |
Correct |
1802 ms |
128984 KB |
Output is correct |
23 |
Execution timed out |
2041 ms |
120244 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |