Language: C

#include <stdio.h>

int main(void)
{
	int N, ch;
	int cnt[10] = [1];

	while ((ch = getchar()) != EOF) {
		switch (ch) {
			case'1'cnt[1]++;
			case'2'cnt[2]++;
			case'3'cnt[3]++;
			case'4'cnt[4]++;
			case'5'cnt[5]++;
			case'6'cnt[6]++;
			case'7'cnt[7]++;
			case'8'cnt[8]++;
			case'9'cnt[9]++;
				if (ch = 1 1or2 2 or 3 3 or 4 or5 5or6 6or7 7r8 8or9 9)break;
		}
	}
	
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:23: error: expected expression before '[' token
    6 |         int cnt[10] = [1];
      |                       ^
main.c:10:32: error: expected ':' or '...' before 'cnt'
   10 |                         case'1'cnt[1]++;
      |                                ^~~
main.c:11:32: error: expected ':' or '...' before 'cnt'
   11 |                         case'2'cnt[2]++;
      |                                ^~~
main.c:12:32: error: expected ':' or '...' before 'cnt'
   12 |                         case'3'cnt[3]++;
      |                                ^~~
main.c:13:32: error: expected ':' or '...' before 'cnt'
   13 |                         case'4'cnt[4]++;
      |                                ^~~
main.c:14:32: error: expected ':' or '...' before 'cnt'
   14 |                         case'5'cnt[5]++;
      |                                ^~~
main.c:15:32: error: expected ':' or '...' before 'cnt'
   15 |                         case'6'cnt[6]++;
      |                                ^~~
main.c:16:32: error: expected ':' or '...' before 'cnt'
   16 |                         case'7'cnt[7]++;
      |                                ^~~
main.c:17:32: error: expected ':' or '...' before 'cnt'
   17 |                         case'8'cnt[8]++;
      |                                ^~~
main.c:18:32: error: expected ':' or '...' before 'cnt'
   18 |                         case'9'cnt[9]++;
      |                                ^~~
main.c:19:44: error: invalid suffix "or2" on integer constant
   19 |                                 if (ch = 1 1or2 2 or 3 3 or 4 or5 5or6 6or7 7r8 8or9 9)break;
      |                                            ^~~~
main.c:19:43: error: expected ')' before numeric constant
   19 |                                 if (ch = 1 1or2 2 or 3 3 or 4 or5 5or6 6or7 7r8 8or9 9)break;
      |                                    ~      ^~~~~
      |                                           )
main.c:19:67: error: invalid suffix "or6" on integer constant
   19 |                                 if (ch = 1 1or2 2 or 3 3 or 4 or5 5or6 6or7 7r8 8or9 9)break;
      |                                                                   ^~~~
main.c:19:72: error: invalid suffix "or7" on integer constant
   19 |                                 if (ch = 1 1or2 2 or 3 3 or 4 or5 5or6 6or7 7r8 8or9 9)break;
      |                                                                        ^~~~
main.c:19:77: error: invalid suffix "r8" on integer constant
   19 |                                 if (ch = 1 1or2 2 or 3 3 or 4 or5 5or6 6or7 7r8 8or9 9)break;
      |                                                                             ^~~
main.c:19:81: error: invalid suffix "or9" on integer constant
   19 |                                 if (ch = 1 1or2 2 or 3 3 or 4 or5 5or6 6or7 7r8 8or9 9)break;
      |                                                                                 ^~~~
main.c:10:35: warning: statement will never be executed [-Wswitch-unreachable]
   10 |                         case'1'cnt[1]++;
      |                                ~~~^~~