Compilare: user.c: In function ‘floodFill’: user.c:30:13: warning: implicit declaration of function ‘enqueue’ [-Wimplicit-function-declaration] enqueue( i + dirl[k], j + dirc[k] ); ^ user.c: At top level: user.c:36:6: warning: conflicting types for ‘enqueue’ void enqueue( int lin, int col ) { ^ user.c:30:13: note: previous implicit declaration of ‘enqueue’ was here enqueue( i + dirl[k], j + dirc[k] ); ^ user.c: In function ‘main’: user.c:89:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &p, &n ); ^ user.c:92:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &g ); ^ user.c:95:17: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &a[i][j] ); ^ user.c:100:17: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &a[i][j] ); ^