Compilare: main.cpp: In function 'int main()': main.cpp:18:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &p ); ^ main.cpp:20:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &c[i] ); ^ main.cpp:55:10: warning: 'nr_min' may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf( fout, "\n%d", nr_min + 1 ); ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~