//#include "worldmap.h" #include <bits/stdc++.h> using namespace std; vector < vector <int> > create_map(int N, int M, vector<int> A, vector<int> B) { vector< vector <int> > answer( N, vector <int> ( N, 1 ) ); for ( int i = 0; i < N; i++ ) { fill ( a[i].begin(), a[i].end(), i + 1 ); } return answer; }

worldmap.cpp: In function 'std::vector<std::vector<int> > create_map(int, int, std::vector<int>, std::vector<int>)':
worldmap.cpp:12:24: error: 'a' was not declared in this scope
   12 |                 fill ( a[i].begin(), a[i].end(), i + 1 );
      |                        ^