Compilare: main.c: In function 'main': main.c:16:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d" , &n ); ^~~~~~~~~~~~~~~~~~~~~~~~~ main.c:17:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d" , &m ); ^~~~~~~~~~~~~~~~~~~~~~~~~ main.c:21:13: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d" , &v[ i ][ j ] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~