oj.uz

답안 #496809

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
496809 2021-12-22T04:43:53 Z SirCovidThe19th Lightning Rod (NOI18_lightningrod) C++17
66 / 100
 2000 ms 262148 KB 
#include <bits/stdc++.h>
using namespace std; 

#define FOR(i, x, y) for (int i = x; i < y; i++)
#define pii pair<int, int>
#define f first
#define s second

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); 
    int n; cin >> n; 
    bool covered[n] = {}; pii A[n]; set<pii> S;

    FOR(i, 0, n){
        cin >> A[i].f >> A[i].s;
        while (!S.empty() and prev(S.end())->f >= A[i].f - A[i].s){
            covered[prev(S.end())->s] = 1;
            S.erase(prev(S.end()));
        }
        S.insert({A[i].f - A[i].s, i});
    }
    S.clear();
    for (int i = n - 1; ~i; i--) if (!covered[i]){
        while (!S.empty() and S.begin()->f <= A[i].f + A[i].s){
            covered[S.begin()->s] = 1;
            S.erase(S.begin());
        }
        S.insert({A[i].f + A[i].s, i});
    }
    cout<<n - accumulate(covered, covered + n, 0)<<endl;
}

Subtask #1
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1770 ms 262148 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct

Subtask #5
26.0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 57 ms 1936 KB Output is correct
15 Correct 54 ms 2020 KB Output is correct
16 Correct 82 ms 7216 KB Output is correct

Subtask #6
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2024 ms 250256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1770 ms 262148 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -