View Compilation Error

0_0_38763928_3505.cpp:46:5: error: redefinition of 'int a [5000005]'
   46 | int a[5000005];
      |     ^
0_0_38763928_3505.cpp:3:5: note: 'int a [5000005]' previously declared here
    3 | int a[5000005];
      |     ^
0_0_38763928_3505.cpp:49:6: error: redefinition of 'template<class T> void read(T&)'
   49 | void read(T &x) {
      |      ^~~~
0_0_38763928_3505.cpp:6:6: note: 'template<class T> void read(T&)' previously declared here
    6 | void read(T &x) {
      |      ^~~~
0_0_38763928_3505.cpp:58:5: error: redefinition of 'int main()'
   58 | int main() {
      |     ^~~~
0_0_38763928_3505.cpp:15:5: note: 'int main()' previously defined here
   15 | int main() {
      |     ^~~~