View Compilation Error

0_0_8783258_24108.cpp: In function `long long int gcd(long long int, long long int)':
0_0_8783258_24108.cpp:50: error: redefinition of `long long int gcd(long long int, long long int)'
0_0_8783258_24108.cpp:6: error: `long long int gcd(long long int, long long int)' previously defined here
0_0_8783258_24108.cpp: In function `int main()':
0_0_8783258_24108.cpp:54: error: redefinition of `int main()'
0_0_8783258_24108.cpp:10: error: `int main()' previously defined here