View Compilation Error

0_0_30461002_25249.cpp: In function 'int main()':
0_0_30461002_25249.cpp:55:5: error: redefinition of 'int main()'
 int main(){
     ^
0_0_30461002_25249.cpp:15:5: note: 'int main()' previously defined here
 int main(){
     ^