Submission #20439

#	Time	Username	Problem	Language	Result	Execution time	Memory
20439		admin	복불복 (OJUZ11_luck)	C++14	0 / 100	223 ms	2024 KiB

luck

#include <bits/stdc++.h>
 
using namespace std;
int n, k;
int main() {
  scanf("%d", &n);
  if(n > 10) return 0;
  
  vector<int> a(n), b(n), p(n);
  for(int i = 0; i < n; i++) scanf("%d", &a[i]);
  for(int i = 0; i < n; i++) scanf("%d", &b[i]);
  sort(a.begin(), a.end(), greater<int>());
  sort(b.begin(), b.end(), greater<int>());
  for(int i= 0; i < n; i++) p[i] = i;
  
  int ans = 0;
  do {
    vector<int> sc(n);
    for(int i = 0; i < n; i++) sc[i] = a[i] + b[p[i]];
    bool good = true;
    for(int i = 0; i < k; i++) {
      int r = 0;
      for(int j = 0; j < n; j++) {
        if(sc[j] > sc[i]) r++;
      }
      if(r > k) good = false;
    }
    for(int i = 0; i < k; i++) {
      for(int j = k; j < n; j++) {
        if(sc[j] > sc[i]) good = false;
      }
    }
    if(good) ans += 1;
  }while(next_permutation(p.begin(), p.end()));
  printf("%d\n", ans);
  return 0;
}

Compilation message (stderr)

luck.cpp: In function 'int main()':
luck.cpp:6:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
luck.cpp:10:48: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for(int i = 0; i < n; i++) scanf("%d", &a[i]);
                                                ^
luck.cpp:11:48: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for(int i = 0; i < n; i++) scanf("%d", &b[i]);
                                                ^

• Subtask 1: 0 / 9
• Subtask 2: 0 / 13
• Subtask 3: 0 / 25
• Subtask 4: 0 / 26
• Subtask 5: 0 / 27