답안 #205115

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
205115	2020-02-28T04:10:01 Z	quocnguyen1012	Lightning Rod (NOI18_lightningrod)	C++14	100 / 100	540 ms	187040 KB

lightningrod

#include <bits/stdc++.h>
using namespace std;
inline int readInt() {
    int x = 0;
    char ch = getchar_unlocked();
    while (ch < '0' || ch > '9') ch = getchar_unlocked();
    while (ch >= '0' && ch <= '9'){
		x = (x << 3) + (x << 1) + ch - '0';
		ch = getchar_unlocked();
	}
    return x;
}
 
int x,y;
stack<pair<int,int> > chosen;
 
int main(){
	int n=readInt();
	for (int i = 0; i < n; i++) {
		x = readInt();
		y = readInt();
        if (!chosen.empty() && x-chosen.top().first<=chosen.top().second-y) continue;
        while (!chosen.empty() && x-chosen.top().first<=y-chosen.top().second){
            chosen.pop();
        }
        chosen.push(make_pair(x,y));
    }
	cout<<chosen.size();
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	322 ms	94320 KB	Output is correct
2	Correct	327 ms	155672 KB	Output is correct
3	Correct	338 ms	187040 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	256 KB	Output is correct
4	Correct	5 ms	256 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	256 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct

Subtask #3

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	256 KB	Output is correct
4	Correct	5 ms	256 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	256 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	256 KB	Output is correct
9	Correct	5 ms	256 KB	Output is correct
10	Correct	5 ms	256 KB	Output is correct

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	256 KB	Output is correct
4	Correct	5 ms	256 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	256 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	256 KB	Output is correct
9	Correct	5 ms	256 KB	Output is correct
10	Correct	5 ms	256 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	6 ms	376 KB	Output is correct

Subtask #5

26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	256 KB	Output is correct
4	Correct	5 ms	256 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	256 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	256 KB	Output is correct
9	Correct	5 ms	256 KB	Output is correct
10	Correct	5 ms	256 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	6 ms	376 KB	Output is correct
14	Correct	16 ms	3832 KB	Output is correct
15	Correct	16 ms	3704 KB	Output is correct
16	Correct	16 ms	3704 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	326 ms	63624 KB	Output is correct
2	Correct	331 ms	63736 KB	Output is correct
3	Correct	309 ms	62200 KB	Output is correct

Subtask #7

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	322 ms	94320 KB	Output is correct
2	Correct	327 ms	155672 KB	Output is correct
3	Correct	338 ms	187040 KB	Output is correct
4	Correct	5 ms	256 KB	Output is correct
5	Correct	5 ms	256 KB	Output is correct
6	Correct	5 ms	256 KB	Output is correct
7	Correct	5 ms	256 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	256 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	256 KB	Output is correct
12	Correct	5 ms	256 KB	Output is correct
13	Correct	5 ms	256 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	6 ms	376 KB	Output is correct
17	Correct	16 ms	3832 KB	Output is correct
18	Correct	16 ms	3704 KB	Output is correct
19	Correct	16 ms	3704 KB	Output is correct
20	Correct	326 ms	63624 KB	Output is correct
21	Correct	331 ms	63736 KB	Output is correct
22	Correct	309 ms	62200 KB	Output is correct
23	Correct	540 ms	175812 KB	Output is correct
24	Correct	477 ms	157188 KB	Output is correct
25	Correct	446 ms	140312 KB	Output is correct