Compilare: user.c: In function ‘getVal’: user.c:24:41: warning: unused variable ‘i’ [-Wunused-variable] unsigned short m = (i1 + i2)/2, i, k, start, stop; ^ user.c: In function ‘main’: user.c:82:13: warning: unused variable ‘t’ [-Wunused-variable] clock_t t = clock(); ^ user.c:69:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fi , "%hd %hd %hd\n" , &n , &l , &u ); ^ user.c:73:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fi , "%hd " , &data[0][i] ); ^ user.c:74:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fi , "%hd\n" , &data[0][n] ); ^ user.c:76:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fi , "%hd " , &data[1][i] ); ^ user.c:77:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fi , "%hd" , &data[1][n] ); ^