View Compilation Error

0_0_2805680_24426.cpp:8:42: invalid suffix "int" on integer constant
0_0_2805680_24426.cpp:8: error: expected `,' or `...' before numeric constant
0_0_2805680_24426.cpp: In function `unsigned int gcd(unsigned int, unsigned int)':
0_0_2805680_24426.cpp:10: error: invalid operands of types `unsigned int' and `int[30]' to binary `operator%'