View Compilation Error

0_0_21738443_21129.cpp: In function 'int main()':
0_0_21738443_21129.cpp:20:42: error: expected initializer before 'a'
         ll ans = 0 , l = 0 , r = 0 , tmp a , b;
                                          ^
0_0_21738443_21129.cpp:59:17: error: 'a' was not declared in this scope
         p = 0 , a = l , b = r;
                 ^
0_0_21738443_21129.cpp:59:25: error: 'b' was not declared in this scope
         p = 0 , a = l , b = r;
                         ^
0_0_21738443_21129.cpp:68:13: error: 'tmp' was not declared in this scope
             tmp = l * r;
             ^
0_0_21738443_21129.cpp:82:13: error: 'tmp' was not declared in this scope
             tmp = l * r;
             ^