답안 #200046

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
200046 2020-02-05T04:02:18 Z wilwxk Lightning Rod (NOI18_lightningrod) C++14
100 / 100
1719 ms 78424 KB
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 1e7+7;
pair<int, int> v[MAXN];
int n;

int getn() {
	char ch = getchar_unlocked();
    int ans = 0;
    while(!isdigit(ch)) {
        ch = getchar_unlocked();
    }
    while(isdigit(ch)) {
        ans = ans * 10 + ch - '0';
        ch = getchar_unlocked();
    }
    return ans;
}
 
int main() {
	n = getn();
	for(int i = 1; i <= n; i++) {
		int a = getn();
		int b = getn();
		v[i].first = a+b;
		v[i].second = b-a;
	}
	sort(v+1, v+1+n);
 
	int ans = 0; int mx = -(2e9+7);
	for(int i = n; i >= 1; i--) if(v[i].second > mx) mx = v[i].second, ans++;
 
	printf("%d\n", ans);
}
# 결과 실행 시간 메모리 Grader output
1 Correct 610 ms 76280 KB Output is correct
2 Correct 631 ms 75896 KB Output is correct
3 Correct 588 ms 74104 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 6 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 4 ms 256 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 6 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 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 6 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 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 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 5 ms 376 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 6 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 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 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 5 ms 376 KB Output is correct
14 Correct 34 ms 1784 KB Output is correct
15 Correct 29 ms 1912 KB Output is correct
16 Correct 21 ms 1784 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 653 ms 78424 KB Output is correct
2 Correct 660 ms 78332 KB Output is correct
3 Correct 634 ms 76280 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 610 ms 76280 KB Output is correct
2 Correct 631 ms 75896 KB Output is correct
3 Correct 588 ms 74104 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 6 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 4 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 5 ms 376 KB Output is correct
17 Correct 34 ms 1784 KB Output is correct
18 Correct 29 ms 1912 KB Output is correct
19 Correct 21 ms 1784 KB Output is correct
20 Correct 653 ms 78424 KB Output is correct
21 Correct 660 ms 78332 KB Output is correct
22 Correct 634 ms 76280 KB Output is correct
23 Correct 1719 ms 71392 KB Output is correct
24 Correct 1412 ms 71344 KB Output is correct
25 Correct 1052 ms 72056 KB Output is correct