제출 #497514

#제출 시각아이디문제언어결과실행 시간메모리
497514thekccXOR (IZhO12_xor)C++14
0 / 100
1 ms336 KiB
#include <bits/stdc++.h> using namespace std; const int N = 500001; int pre[N],a[N]; int bi,bk,n,x; int main(){ cin.tie(0)->sync_with_stdio(0); cin >> n; cin >> x; pre[0]=0; for(int i=1; i<=n; i++){ cin >> a[i]; pre[i]=pre[i-1]^a[i]; } bi=-1; bk=-1; int k; for(int i=0; i<n; i++){ for(int j=i+1; j<=n; j++){ if(x==pre[j]^pre[i]){ if(j-i>bk){ bi=i; bk=j-i; } } } } cout << bi+1 << " " << bk; }

컴파일 시 표준 에러 (stderr) 메시지

xor.cpp: In function 'int main()':
xor.cpp:23:17: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses]
   23 |             if(x==pre[j]^pre[i]){
      |                ~^~~~~~~~
xor.cpp:20:6: warning: unused variable 'k' [-Wunused-variable]
   20 |  int k;
      |      ^
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