View Compilation Error

0_0_23306590_5241.cpp:6:1: error: expected initializer before 'double'
 double max(double a , double b)  
 ^
0_0_23306590_5241.cpp: In function 'int main()':
0_0_23306590_5241.cpp:33:13: error: 'value' was not declared in this scope
             value[k++] = sum ;  
             ^
0_0_23306590_5241.cpp:33:26: error: 'sum' was not declared in this scope
             value[k++] = sum ;  
                          ^