View Compilation Error

0_0_13154988_29870.cpp:6:2: error: stray '\250' in program
  while(t–)
  ^
0_0_13154988_29870.cpp:12:2: error: stray '\250' in program
  sum*=(n–)*1.0/i;
  ^
0_0_13154988_29870.cpp: In function 'int main()':
0_0_13154988_29870.cpp:6:10: error: expected ')' before 'C'
  while(t–)
          ^
0_0_13154988_29870.cpp:6:10: error: 'C' was not declared in this scope