View Compilation Error

0_0_17548277_6400.cpp: In function 'int main()':
0_0_17548277_6400.cpp:58:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_17548277_6400.cpp:8:5: note: 'int main()' previously defined here
 int main()
     ^
0_0_17548277_6400.cpp:64:27: error: 'time' was not declared in this scope
  srand((unsigned)time(NULL));
                           ^