제출 #67694

#제출 시각아이디문제언어결과실행 시간메모리
67694tatatanXOR Sum (info1cup17_xorsum)C++11
7 / 100
1675 ms8320 KiB
#include <bits/stdc++.h> #define mp make_pair #define pb push_back #define pii pair<int,int> #define LL long long #define st first #define nd second #define endl '\n' using namespace std; const int MAXN=1000005; LL n,a[MAXN],b[MAXN]; LL ans; int main() { scanf("%lld",&n); for(int i=0;i<n;++i) scanf("%lld",&a[i]); LL ans2=0; for(int i=0;i<n;++i) for(int j=i;j<n;++j) ans2^=a[i]+a[j]; printf("%lld\n",ans2); }

컴파일 시 표준 에러 (stderr) 메시지

xorsum.cpp: In function 'int main()':
xorsum.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
xorsum.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a[i]);
   ~~~~~^~~~~~~~~~~~~~
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