Compilare: main.c: In function 'read': main.c:27:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &C); ^~~~~~~~~~~~~~~~~~~~ main.c:28:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &N); ^~~~~~~~~~~~~~~~~~~~ main.c:32:13: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%hd", &A[i][j]); ^~~~~~~~~~~~~~~~~~~~~~~~~~~