제출 #78799

실행 실패 (제출 코드 컴파일 에러)

Main.c: In function ‘compare’:
Main.c:11:25: error: ‘a’ undeclared (first use in this function)
   11 |          char current = a[x+i][y+j];
      |                         ^
Main.c:11:25: note: each undeclared identifier is reported only once for each function it appears in
Main.c: In function ‘main’:
Main.c:32:4: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   32 |    scanf("%d %d", &N, &M);
      |    ^~~~~~~~~~~~~~~~~~~~~~
Main.c:35:7: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   35 |       scanf("%s", a[i]);
      |       ^~~~~~~~~~~~~~~~~