Submission #1368867

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Source Code Expand

#include <cstdio>
#include <map>
#define maxn 100010
using namespace std;
int n,ans;
map<int, int> m;
int main() {
	scanf("%d",&n);
	for (int i=0;i<n;i++) {
		int ai;
		scanf("%d",&ai);
		m[ai]++;
	}
	ans = m.size();
	if (ans%2==0)
		ans--;
	printf("%d\n",ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:11:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&ai);
                  ^

Judge Result