View Compilation Error

0_0_15375004_19969.cpp:3:1: error: stray '\241' in program
 void MaxSub(int *arr, int count, int &first, int &last, int ∑);  
 ^
0_0_15375004_19969.cpp:3:1: error: stray '\306' in program
0_0_15375004_19969.cpp:30:1: error: stray '\241' in program
 void MaxSub(int *arr, int count, int &first, int &last, int ∑)  
 ^
0_0_15375004_19969.cpp:30:1: error: stray '\306' in program
0_0_15375004_19969.cpp: In function 'void MaxSub(int*, int, int&, int&, int)':
0_0_15375004_19969.cpp:36:5: error: 'sum' was not declared in this scope
     sum = tSum = arr[0];  
     ^