oj.uz

답안 #201816

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
201816 2020-02-12T05:48:15 Z abil Sure Bet (CEOI17_sure) C++14
60 / 100
 247 ms 33784 KB 
#include <bits/stdc++.h>
 
#define fr first
#define sc second
#define pb push_back
#define all(s) s.begin(),s.end()
//#define int long long
 
using namespace std;
 
const int N = (1e6 + 12);
const int mod = (1e9 + 12);
const int inf = (1e9 + 12);
 
double a[N], b[N], pr[N];
 
bool cmp(double x, double y){
  return x >= y;
}
 
main()
{
  int n;
  scanf("%d", &n);
  for(int i = 1;i <= n; i++){
    cin >> a[i] >> b[i];
  }
  sort(a + 1,a + 1 + n, cmp);
  sort(b + 1,b + 1 + n, cmp);
  double ans = 0.0, sum = 0.0;
  for(int j = 1;j <= n; j++){
    pr[j] = pr[j - 1] + b[j];
  }
  for(int i = 1;i <= n; i++){
    sum += a[i];
    int l = 0, r = n;
    while(r - l > 1){
      int mid = (r + l) >> 1;
      if(pr[mid] - mid - i > sum - mid - i){
        r = mid;
      }
      else{
        l = mid;
      }
    }
    ans = max(ans, min(pr[r] - r - i, sum - r - i));
    ans = max(ans, min(pr[l] - l - i, sum - l - i));
  }
  cout << fixed << setprecision(4) << ans;
}

Compilation message

sure.cpp:21:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
sure.cpp: In function 'int main()':
sure.cpp:24:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ~~~~~^~~~~~~~~~

Subtask #1
20.0 / 20.0

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

Subtask #2
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 6 ms 376 KB Output is correct
13 Correct 7 ms 376 KB Output is correct
14 Correct 7 ms 376 KB Output is correct
15 Correct 9 ms 376 KB Output is correct
16 Correct 7 ms 376 KB Output is correct

Subtask #3
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 6 ms 376 KB Output is correct
13 Correct 7 ms 376 KB Output is correct
14 Correct 7 ms 376 KB Output is correct
15 Correct 9 ms 376 KB Output is correct
16 Correct 7 ms 376 KB Output is correct
17 Correct 203 ms 2680 KB Output is correct
18 Correct 205 ms 2680 KB Output is correct
19 Correct 200 ms 2680 KB Output is correct
20 Correct 207 ms 2808 KB Output is correct
21 Correct 223 ms 2680 KB Output is correct
22 Correct 208 ms 2808 KB Output is correct
23 Runtime error 247 ms 33784 KB Execution killed with signal 11 (could be triggered by violating memory limits)
24 Halted 0 ms 0 KB -