View Compilation Error

0_0_16796145_24655.cpp:7:3: error: missing terminating " character
   printf("%,f/n/n,(1+n)/2.0*n);
   ^
0_0_16796145_24655.cpp: In function 'int main()':
0_0_16796145_24655.cpp:5:21: error: 'scant' was not declared in this scope
  while(scant("%d",&n)!=EOF)
                     ^
0_0_16796145_24655.cpp:8:2: error: expected primary-expression before '}' token
  }
  ^
0_0_16796145_24655.cpp:9:2: error: 'return0' was not declared in this scope
  return0;
  ^