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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