답안 #423875

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
423875	2021-06-11T13:39:00 Z	faresbasbs	Lightning Rod (NOI18_lightningrod)	C++14	100 / 100	633 ms	262144 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[10000000], Y[10000000];

int main(){
	int N = readInt();
	stack<pair<int,int>> st;
	for(int i = 0; i < N; i++) {
		X[i] = readInt();
		Y[i] = readInt();
		while(true){
			if(st.size() && X[i]-st.top().first <= Y[i]-st.top().second){
				st.pop();
			}else if(st.size() && st.top().first-X[i] >= Y[i]-st.top().second){
				break;
			}else{
				st.push({X[i],Y[i]});
				break;
			}
		}
	}
	cout << st.size() << endl;
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	401 ms	262144 KB	Output is correct
2	Correct	408 ms	262144 KB	Output is correct
3	Correct	385 ms	260168 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	304 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct

Subtask #3

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	304 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 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	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	304 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 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	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct

Subtask #5

26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	304 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 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	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	12 ms	5324 KB	Output is correct
15	Correct	11 ms	5076 KB	Output is correct
16	Correct	11 ms	5196 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	390 ms	225108 KB	Output is correct
2	Correct	425 ms	219488 KB	Output is correct
3	Correct	419 ms	210524 KB	Output is correct

Subtask #7

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	401 ms	262144 KB	Output is correct
2	Correct	408 ms	262144 KB	Output is correct
3	Correct	385 ms	260168 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	1 ms	304 KB	Output is correct
8	Correct	1 ms	300 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	12 ms	5324 KB	Output is correct
18	Correct	11 ms	5076 KB	Output is correct
19	Correct	11 ms	5196 KB	Output is correct
20	Correct	390 ms	225108 KB	Output is correct
21	Correct	425 ms	219488 KB	Output is correct
22	Correct	419 ms	210524 KB	Output is correct
23	Correct	633 ms	224404 KB	Output is correct
24	Correct	608 ms	207440 KB	Output is correct
25	Correct	518 ms	203880 KB	Output is correct