View Compilation Error

0_0_38270412_9108.c:1:1: error: expected identifier or '(' before '/' token
 // #pragma GCC optomize ("Ofast")
 ^
0_0_38270412_9108.c:1:4: error: stray '#' in program
 // #pragma GCC optomize ("Ofast")
    ^
0_0_38270412_9108.c:2:4: error: stray '#' in program
 // #pragma GCC optomize ("unroll-loops")
    ^
0_0_38270412_9108.c:3:4: error: stray '#' in program
 // #pragma GCC target ("avx,avx2,fma")
    ^
0_0_38270412_9108.c:5:25: fatal error: bits/stdc++.h: No such file or directory
 #include <bits/stdc++.h>
                         ^
compilation terminated.