Submission #3819595

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Source Code Expand

#include<iostream>
#include<algorithm>
#include<vector>
typedef long long lint;
using namespace std;

int main()
{
	int N;
	int A[100010]={},B[100010]={},C[100010]={};
	int a,c;
	lint ans=0;
	
	cin >> N;
	for(int i=0;i<N;i++)cin >> A[i];
	for(int i=0;i<N;i++)cin >> B[i];
	for(int i=0;i<N;i++)cin >> C[i];
	
	sort(A.begin(),A.end());
	sort(B.begin(),B.end());
	sort(C.begin(),C.end());
	
	for(int i=0;i<N;i++)
	{
		a=lower_bound(A,A+N,B[i])-A;
		c=C+N-upper_bound(C,C+N,B[i]);
		ans+=a*c;
	}
	cout << ans << endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:19:9: error: request for member ‘begin’ in ‘A’, which is of non-class type ‘int [100010]’
  sort(A.begin(),A.end());
         ^
./Main.cpp:19:19: error: request for member ‘end’ in ‘A’, which is of non-class type ‘int [100010]’
  sort(A.begin(),A.end());
                   ^
./Main.cpp:20:9: error: request for member ‘begin’ in ‘B’, which is of non-class type ‘int [100010]’
  sort(B.begin(),B.end());
         ^
./Main.cpp:20:19: error: request for member ‘end’ in ‘B’, which is of non-class type ‘int [100010]’
  sort(B.begin(),B.end());
                   ^
./Main.cpp:21:9: error: request for member ‘begin’ in ‘C’, which is of non-class type ‘int [100010]’
  sort(C.begin(),C.end());
         ^
./Main.cpp:21:19: error: request for member ‘end’ in ‘C’, which is of non-class type ‘int [100010]’
  sort(C.begin(),C.end());
                   ^