View Compilation Error

0_0_19276982_18306.c:6:5: error: variably modified 'a' at file scope
 int a[M]; 
     ^
0_0_19276982_18306.c:7:11: error: variably modified 'f' at file scope
 long long f[M],g[M]; 
           ^
0_0_19276982_18306.c:7:16: error: variably modified 'g' at file scope
 long long f[M],g[M]; 
                ^
0_0_19276982_18306.c: In function 'main':
0_0_19276982_18306.c:11:29: error: expected expression before '/' token
  while(~scanf("%d%d",&n,&m))//n组，m个数字 
                             ^
0_0_19276982_18306.c:11:29: error: stray '\327' in program
0_0_19276982_18306.c:11:29: error: stray '\351' in program
0_0_19276982_18306.c:11:29: error: stray '\243' in program
0_0_19276982_18306.c:11:29: error: stray '\254' in program
0_0_19276982_18306.c:11:29: error: stray '\270' in program
0_0_19276982_18306.c:11:29: error: stray '\366' in program
0_0_19276982_18306.c:11:29: error: stray '\312' in program
0_0_19276982_18306.c:11:29: error: stray '\375' in program
0_0_19276982_18306.c:11:29: error: stray '\327' in program
0_0_19276982_18306.c:11:29: error: stray '\326' in program