Compilare: main.cpp: In function 'int main()': main.cpp:13:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d%d", &n, &k ); ^ main.cpp:16:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin, "%d", &v[i] ); ^ main.cpp:14:9: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] int pos; ^~~