View Compilation Error

0_0_23608640_14552.cpp:4:1: error: stray '\243' in program
 int n,a,c，t;  
 ^
0_0_23608640_14552.cpp:4:1: error: stray '\254' in program
0_0_23608640_14552.cpp: In function 'int main()':
0_0_23608640_14552.cpp:4:12: error: expected initializer before 't'
 int n,a,c，t;  
            ^
0_0_23608640_14552.cpp:7:3: error: 'c' was not declared in this scope
   c=0;t=0;  
   ^
0_0_23608640_14552.cpp:7:7: error: 't' was not declared in this scope
   c=0;t=0;  
       ^