Submission #844752

---

Source Code Expand

#include <bits/stdc++.h>
#define PB push_back
#define MP make_pair
#define F first
#define S second
#define SZ(x) ((int)(x).size())
#define ALL(x) (x).begin(),(x).end()
#ifdef _DEBUG_
	#define debug(...) printf(__VA_ARGS__)
#else
	#define debug(...) (void)0
#endif
using namespace std;
typedef long long ll;
typedef pair<int,int> PII;
typedef vector<int> VI;

const int MAXN=100050;
int a[MAXN];

int main() {
	int N; scanf("%d",&N);
	for(int i=0;i<N;i++) scanf("%d",a+i);
	ll ans=0;
	for(int i=0;i<N;i++) {
		ans+=a[i]/2;
		a[i]%=2;
		if(i+1<N && a[i]>0 && a[i+1]>0) ans++, a[i]--, a[i+1]--;
	}
	cout << ans << endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int N; scanf("%d",&N);
                       ^
./Main.cpp:23:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<N;i++) scanf("%d",a+i);
                                      ^

Judge Result