oj.uz

답안 #51378

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
51378 2018-06-17T18:41:56 Z adamczh1 Sure Bet (CEOI17_sure) C++17
20 / 100
 77 ms 744 KB 
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 1e5 + 5;

int n;
double a[MAXN], b[MAXN];

int main() {
	scanf("%d", &n);
	for (int i = 0; i < n; i++) {
		scanf("%lf %lf", &a[i], &b[i]);
	}
	double res = 0;
	for (int mask = 0; mask < (1 << (2 * n)); mask++) {
		double x = 0, y = 0;
		for (int i = 0; i < n; i++) {
			if ((mask >> (2 * i)) & 1) {
				x += a[i] - 1;
				y--;
			}
			if ((mask >> (2 * i + 1)) & 1) {
				x--;
				y += b[i] - 1;
			}
		}
		res = max(res, min(x, y));
	}
	printf("%.4lf", res);
	return 0;
}

Compilation message

sure.cpp: In function 'int main()':
sure.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
sure.cpp:12:8: 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 248 KB Output is correct
2 Correct 2 ms 360 KB Output is correct
3 Correct 76 ms 472 KB Output is correct
4 Correct 76 ms 584 KB Output is correct
5 Correct 77 ms 604 KB Output is correct
6 Correct 77 ms 616 KB Output is correct

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 360 KB Output is correct
3 Correct 76 ms 472 KB Output is correct
4 Correct 76 ms 584 KB Output is correct
5 Correct 77 ms 604 KB Output is correct
6 Correct 77 ms 616 KB Output is correct
7 Incorrect 3 ms 744 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 360 KB Output is correct
3 Correct 76 ms 472 KB Output is correct
4 Correct 76 ms 584 KB Output is correct
5 Correct 77 ms 604 KB Output is correct
6 Correct 77 ms 616 KB Output is correct
7 Incorrect 3 ms 744 KB Output isn't correct
8 Halted 0 ms 0 KB -