View Compilation Error

0_0_20291335_20430.cpp: In function 'int main()':
0_0_20291335_20430.cpp:28:5: error: redefinition of 'int main()'
 int main() 
     ^
0_0_20291335_20430.cpp:3:5: note: 'int main()' previously defined here
 int main() 
     ^
0_0_20291335_20430.cpp: In function 'int main()':
0_0_20291335_20430.cpp:42:5: error: redefinition of 'int main()'
 int main()  
     ^
0_0_20291335_20430.cpp:3:5: note: 'int main()' previously defined here
 int main() 
     ^