View Compilation Error

0_0_39246673_26295.c: In function 'main':
0_0_39246673_26295.c:9:9: error: 'cin' undeclared (first use in this function); did you mean 'sin'?
    9 |         cin >> n;
      |         ^~~
      |         sin
0_0_39246673_26295.c:9:9: note: each undeclared identifier is reported only once for each function it appears in