View Compilation Error

0_0_21601061_2762.cpp:10:24: error: stray '#' in program
         for(i=0;a[i]!='\0';i++)
                        ^
0_0_21601061_2762.cpp:10:9: error: stray '\' in program
         for(i=0;a[i]!='\0';i++)
         ^
0_0_21601061_2762.cpp:10:31: error: stray '#' in program
         for(i=0;a[i]!='\0';i++)
                               ^
0_0_21601061_2762.cpp:12:26: error: stray '#' in program
             r=r*10+a[i]-'0';
                          ^
0_0_21601061_2762.cpp:12:32: error: stray '#' in program
             r=r*10+a[i]-'0';
                                ^
0_0_21601061_2762.cpp: In function 'int main()':
0_0_21601061_2762.cpp:10:25: error: lvalue required as unary '&' operand
         for(i=0;a[i]!='\0';i++)
                         ^
0_0_21601061_2762.cpp:10:34: error: expected ')' before ';' token
         for(i=0;a[i]!='\0';i++)
                                  ^
0_0_21601061_2762.cpp:10:39: error: expected ';' before ')' token
         for(i=0;a[i]!='\0';i++)
                                       ^