Submission #1294500

#	Time	Username	Problem	Language	Result	Execution time	Memory
1294500		falmusharraf2025	Coins (IOI17_coins)	C++20	Compilation error	0 ms	0 KiB

coins

#include <bits/stdc++.h>
using namespace std;
vector<int> adj[100005];
#define int long long
signed main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n,m;
    cin>>n>>m;
    char arr[n][m];
    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            cin>>arr[i][j];
        }
    }
    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            if((i+j)%2==0){
                if(arr[i][j]!='A'){
                    cout<<'A';
                }else{
                    cout<<'C';
                }
            }else{
                if(arr[i][j]!='B'){
                    cout<<'B';
                }else{
                    cout<<'D';
                }
            }
        }
        cout<<"\n";
    }

    
    
    
    
    
 
    
 
    return 0;
}

Compilation message (stderr)

grader.cpp: In function 'void shuffle(std::vector<int>&)':
grader.cpp:88:23: warning: 'void std::random_shuffle(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<int*, vector<int> >]' is deprecated: use 'std::shuffle' instead [-Wdeprecated-declarations]
   88 |         random_shuffle(v.begin(), v.end());
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61,
                 from grader.cpp:5:
/usr/include/c++/13/bits/stl_algo.h:4581:5: note: declared here
 4581 |     random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last)
      |     ^~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccbZAw3n.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccTIdfZ4.o:coins.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccbZAw3n.o: in function `main':
grader.cpp:(.text.startup+0x331): undefined reference to `coin_flips(std::vector<int, std::allocator<int> >, int)'
/usr/bin/ld: grader.cpp:(.text.startup+0xa36): undefined reference to `find_coin(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status