View Compilation Error

0_0_25734874_31672.cpp: In function 'int main()':
0_0_25734874_31672.cpp:53:13: error: expected initializer before 'unsigned'
             unsigned int v;
             ^
0_0_25734874_31672.cpp:55:13: error: 'r' was not declared in this scope
             r=max((f1%n)+1,(f2%n)+1);
             ^
0_0_25734874_31672.cpp:56:13: error: 'v' was not declared in this scope
             v=f3%((unsigned int)1<<30);
             ^