Submission #1858729

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Source Code Expand

#include <iostream>
#include <algorithm>
using namespace std;
main()
{
    int n;
    cin>> n;
    int a[2n];
    for(int i=0;i<2n;i++)
cin >> a[i];
sort (a,a+2n);
int s=0;
for(int i=0;i<2n;i+=2)
{
s=s+((a[i]>a[i+1])?a[i+1]:a[i]);
}
cout << s;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:11: error: unable to find numeric literal operator ‘operator""n’
     int a[2n];
           ^
./Main.cpp:9:19: error: unable to find numeric literal operator ‘operator""n’
     for(int i=0;i<2n;i++)
                   ^
./Main.cpp:10:8: error: ‘a’ was not declared in this scope
 cin >> a[i];
        ^
./Main.cpp:11:7: error: ‘a’ was not declared in this scope
 sort (a,a+2n);
       ^
./Main.cpp:11:11: error: unable to find numeric literal operator ‘operator""n’
 sort (a,a+2n);
           ^
./Main.cpp:13:15: error: unable to find numeric literal operator ‘operator""n’
 for(int i=0;i<2n;i+=2)
               ^