Submission #953489

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
953489	2024-03-26 03:24:05	Pacybwoah	양말 찾기 (KPI13_socks)	C++17	0 / 1	2245 ms	65536 KiB

socks

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#include <stdio.h>
#include <set>
using namespace std;
 
int n,v[31];
 
int main()
{
  scanf("%d", &n);
  for (int i = 0; i < n; i++) {
    int x; scanf("%d", &x);
    x += 1000000001;
    for (int j = 0; j < 31; j++) if (x & (1 << j)) v[j] ^= x;
  }
 
  set<int> ans; int u = 0;
  for (int j = 0; j < 31; j++) {
    if (v[j] & (1 << j)) ans.insert(v[j]);
    else if (v[j]) u = v[j];
  }
  if (ans.size() == 1) ans.insert(u^*ans.begin());
 
  for (auto &x : ans) printf("%d ", x - 1000000001);
 
  return 0;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

socks.cpp: In function 'int main()':
socks.cpp:9:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
socks.cpp:11:15: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |   int x; scanf("%d", &x);
      |          ~~~~~^~~~~~~~~~

• Subtask 1: 0 / 1