답안 #98925

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
98925	2019-02-27T12:36:23 Z	arman_ferdous	Sure Bet (CEOI17_sure)	C++17	100 / 100	94 ms	3684 KB

sure

#include <bits/stdc++.h>
using namespace std;

const int N = 1e5+10;
int n; double a[N], b[N];

int main() {
	scanf("%d", &n);
	for(int i = 0; i < n; i++)
		scanf("%lf %lf", &a[i], &b[i]);
	sort(a,a+n); sort(b,b+n);

	int p1 = n-1, p2 = n-1;
	double ans = 0, A = 0, B = 0;
	for(int i = 1; i <= (n<<1); i++) {
		if(p1 < 0) B += b[p2--];
		else if(p2 < 0) A += a[p1--];
		else if(B > A) A += a[p1--];
		else B += b[p2--];
		ans = max(ans, min(A - i, B - i));
	} printf("%.4lf\n", ans);
	return 0;
}

Compilation message

sure.cpp: In function 'int main()':
sure.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
sure.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lf %lf", &a[i], &b[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	400 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Correct	2 ms	336 KB	Output is correct
6	Correct	3 ms	356 KB	Output is correct

Subtask #2

40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	400 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Correct	2 ms	336 KB	Output is correct
6	Correct	3 ms	356 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	3 ms	384 KB	Output is correct
9	Correct	3 ms	384 KB	Output is correct
10	Correct	3 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	3 ms	396 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	3 ms	316 KB	Output is correct
16	Correct	4 ms	384 KB	Output is correct

Subtask #3

40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	400 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Correct	2 ms	336 KB	Output is correct
6	Correct	3 ms	356 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	3 ms	384 KB	Output is correct
9	Correct	3 ms	384 KB	Output is correct
10	Correct	3 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	3 ms	396 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	3 ms	316 KB	Output is correct
16	Correct	4 ms	384 KB	Output is correct
17	Correct	74 ms	3300 KB	Output is correct
18	Correct	77 ms	3276 KB	Output is correct
19	Correct	94 ms	3240 KB	Output is correct
20	Correct	94 ms	3320 KB	Output is correct
21	Correct	78 ms	3684 KB	Output is correct
22	Correct	82 ms	3312 KB	Output is correct
23	Correct	86 ms	3320 KB	Output is correct
24	Correct	82 ms	3320 KB	Output is correct
25	Correct	83 ms	3320 KB	Output is correct
26	Correct	71 ms	3576 KB	Output is correct