oj.uz

Submission #824442

# Submission time Handle Problem Language Result Execution time Memory
824442 2023-08-14T06:23:47 Z makanhulia Lightning Rod (NOI18_lightningrod) C++17
44 / 100
 2000 ms 262144 KB 
# include <bits/stdc++.h>
# define int long long
# define vi vector<int>
# define pb push_back
# define pii pair<int, int>
# define fi first
# define se second
# define endl '\n'
# define jess ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

using namespace std;

int n, x[10000005], y[10000005];
set<pii> s;

void solve() {
    cin >> n;
    bool ok=1;
    for(int i=1; i<=n; i++) {
        cin >> x[i] >> y[i];
        if(y[i]!=1) ok=0;
    }
    if(ok) {
        cout << n << endl;
        return;
    }
    for(int i=1; i<=n; i++) {
        s.insert({y[i], x[i]});
    }
    int ans=0;
    while(!s.empty()) {
        pii cur=*s.rbegin();
        ans++;
        vector<pii> v;
        for(pii i : s) {
            if(abs(i.se-cur.se)<=(cur.fi-i.fi)) {
                v.pb(i);
            }
        }
        for(pii i : v) s.erase(i);
    }
    cout << ans << endl;
}
 
signed main() {
    jess;
    solve();
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1158 ms 151960 KB Output is correct
2 Correct 1104 ms 151572 KB Output is correct
3 Correct 1047 ms 147516 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 3 ms 468 KB Output is correct
13 Correct 11 ms 468 KB Output is correct

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 3 ms 468 KB Output is correct
13 Correct 11 ms 468 KB Output is correct
14 Correct 123 ms 18936 KB Output is correct
15 Correct 438 ms 15668 KB Output is correct
16 Execution timed out 2063 ms 14560 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1258 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1158 ms 151960 KB Output is correct
2 Correct 1104 ms 151572 KB Output is correct
3 Correct 1047 ms 147516 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 11 ms 468 KB Output is correct
17 Correct 123 ms 18936 KB Output is correct
18 Correct 438 ms 15668 KB Output is correct
19 Execution timed out 2063 ms 14560 KB Time limit exceeded
20 Halted 0 ms 0 KB -