제출 #67668

#제출 시각아이디문제언어결과실행 시간메모리
67668ekremXOR Sum (info1cup17_xorsum)C++98
7 / 100
1668 ms4308 KiB
#include <bits/stdc++.h> #define st first #define nd second #define mp make_pair #define pb push_back #define N 1000005 using namespace std; int n, a[N], ans; int main() { // freopen("in.txt", "r", stdin); // freopen("out.txt", "w", stdout); scanf("%d",&n); for(int i = 1; i <= n; i++) scanf("%d", a + i); for(int i = 1; i <= n; i++) for(int j = i; j <= n; j++) ans ^= a[i] + a[j]; printf("%d\n",ans); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

xorsum.cpp: In function 'int main()':
xorsum.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
xorsum.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", a + i);
   ~~~~~^~~~~~~~~~~~~
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