View Compilation Error

0_0_33819209_26004.cpp: In function 'long long int solve(long long int)':
0_0_33819209_26004.cpp:41:9: error: expected unqualified-id before ',' token
     long,long sum = 0;
         ^
0_0_33819209_26004.cpp:41:10: error: expected unqualified-id before 'long'
     long,long sum = 0;
          ^
0_0_33819209_26004.cpp:53:13: error: 'sum' was not declared in this scope
             sum += cur;
             ^
0_0_33819209_26004.cpp:55:13: error: 'sum' was not declared in this scope
             sum -= cur;
             ^
0_0_33819209_26004.cpp:57:16: error: 'sum' was not declared in this scope
     return r - sum;//用总的数目-与n不互素的个数
                ^