Compilare: main.c: In function 'main': main.c:28:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^~~~~~~~~~~~~~~~~~~~~~~ main.c:31:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &a[i][j] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:53:55: warning: 'cst' may be used uninitialized in this function [-Wmaybe-uninitialized] while( j < 4 && ( a[lst][cst] > a[lst+dl[j]][cst+dc[j]] || d[lst+dl[j]][cst+dc[j]] != max - 1 ) ) ~~~^~~~~~ main.c:53:44: warning: 'lst' may be used uninitialized in this function [-Wmaybe-uninitialized] while( j < 4 && ( a[lst][cst] > a[lst+dl[j]][cst+dc[j]] || d[lst+dl[j]][cst+dc[j]] != max - 1 ) ) ~~~^~~~~~