Submission #921610

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
921610	2024-02-04T08:03:46 Z	vjudge1	Lightning Rod (NOI18_lightningrod)	C++17	11 / 100	2000 ms	180520 KB

lightningrod

#include <bits/stdc++.h>
#define F first 
#define S second
#define ent '\n'
#define int long long
#define pb push_back

typedef long double ld;
typedef long long ll;
using namespace std;

const int maxn = 1e6+12;
const int T = 0;
const int mod = 1e9+7;

int n,m,k,x,y,l,r;
int p[maxn],pref[maxn],fact[maxn];

void solve(){
	cin>>n;
	int a[n+2],b[n+2];
	int cnt=0;
	for(int i=1;i<=n;i++){
		cin>>a[i]>>b[i];
		cnt+=(b[i]==1);
	}
	if(cnt==n){
		cout<<n;
		return;
	}
//	abs(x[i] - x[j]) <= abs(y[i] - y[j]);
	int ans=0;
	map<int,int>mp; 
	for(int i=1;i<=n;i++){
		if(!mp[i]){
			ans++;
			for(int j=i+1;j<=n;j++){
				if(abs(a[i] - a[j]) <= abs(b[i] - b[j]))mp[j]=1;
			}
		}
	}
	cout<<ans;
}	
//BEKSULTAN TOP
signed main(){	
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int t=1;
	if(T)cin>>t;
	while(t--)solve();
} 

Subtask #1

4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1096 ms	180388 KB	Output is correct
2	Correct	1086 ms	180520 KB	Output is correct
3	Correct	1144 ms	175428 KB	Output is correct

Subtask #2

7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	600 KB	Output is correct

Subtask #3

0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	600 KB	Output is correct
8	Incorrect	0 ms	348 KB	Output isn't correct
9	Halted	0 ms	0 KB	-

Subtask #4

0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	600 KB	Output is correct
8	Incorrect	0 ms	348 KB	Output isn't correct
9	Halted	0 ms	0 KB	-

Subtask #5

0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	600 KB	Output is correct
8	Incorrect	0 ms	348 KB	Output isn't correct
9	Halted	0 ms	0 KB	-

Subtask #6

0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	2075 ms	180444 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #7

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1096 ms	180388 KB	Output is correct
2	Correct	1086 ms	180520 KB	Output is correct
3	Correct	1144 ms	175428 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	600 KB	Output is correct
11	Incorrect	0 ms	348 KB	Output isn't correct
12	Halted	0 ms	0 KB	-