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Submission #961429

# Submission time Handle Problem Language Result Execution time Memory
961429 2024-04-12T05:37:30 Z vjudge1 Lightning Rod (NOI18_lightningrod) C++17
0 / 100
 59 ms 14964 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define ent "\n"

const int maxn = 5e5 + 100;
const ll INF = (ll)1e18 + 100;
const int inf = 1e9 + 100;
const int MOD = 1e9 + 7;
const int maxl = 30;
const int P = 31;

int n;
int a[maxn];
int b[maxn];
bool ok[maxn];

void test(){
	cin >> n;
	int mx = 0;
	for(int i = 1; i <= n; i++){
		cin >> a[i] >> b[i];
		if(a[i] - b[i] > mx){
			ok[i] = 1;
		}
		mx = max(mx, a[i] - b[i]);
	}
	int mn = inf * 2, cnt = 0;
	for(int i = n; i > 0; i--){
		if(a[i] + b[i] < mn && ok[i]) cnt++;
		mn = min(mn, a[i] + b[i]);
	}
	cout << cnt;
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int t = 1; t = 1;
	while(t--) test();
	cout << ent;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 14964 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 4440 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 4440 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 4440 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 4440 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 54 ms 9192 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 14964 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -