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Submission #519508

# Submission time Handle Problem Language Result Execution time Memory
519508 2022-01-26T13:07:39 Z sumit_kk10 Lightning Rod (NOI18_lightningrod) C++17
7 / 100
 151 ms 18892 KB 
#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL)
#define pb push_back
#define ll long long
#define F first 
#define S second
using namespace std;
const int N = 1e6 + 5, MOD = 1e9 + 7;
int n;
pair<int, int> a[N];

void solve(){
	cin >> n;
	for(int i = 0; i < n; ++i)
		cin >> a[i].S >> a[i].F;
	sort(a, a + n, greater<pair<int, int> >());
	int pre = 0, ans = 1, i = 1;
	while(i < n){
		if(a[pre].F - a[i].F < abs(a[i].S - a[pre].S)){
			++ans;
			pre = i;
		}
		++i;
	}
	cout << ans << '\n';
}

int main(){
	fast;
	int t = 1;
	// cin >> t;
	while(t--)
		solve();
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 151 ms 18892 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 320 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 324 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 320 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 324 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Incorrect 1 ms 320 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 320 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 324 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Incorrect 1 ms 320 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 320 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 324 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Incorrect 1 ms 320 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 137 ms 16960 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 151 ms 18892 KB Output isn't correct
2 Halted 0 ms 0 KB -