Submission #1300129

#	Time	Username	Problem	Language	Result	Execution time	Memory
1300129		lovezah	Reversing a Sequence (IOI16_reverse)	C++20	Compilation error	0 ms	0 KiB

reverse

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N;cin>>N;
  vector<int>A(N);
  for(int i=0;i<N;i++) cin>>A[i];
  for(int i=N-1;i>=0;i--) cout<<A[i]<<" \n"[i==N-1];
}

Compilation message (stderr)

reverse.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
reverse_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
/usr/bin/ld: /tmp/cc5JmZVW.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccR1ZWln.o:reverse.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cc5JmZVW.o: in function `main':
grader.cpp:(.text.startup+0x155): undefined reference to `reverse(std::vector<long long, std::allocator<long long> >)'
collect2: error: ld returned 1 exit status