Compilare: main.cpp: In function 'int main()': main.cpp:63:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%lld", &n,&m); ^ main.cpp:66:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lld", &x); ^ main.cpp: In function 'long long int root(long long int, long long int)': main.cpp:49:12: warning: 'rez' may be used uninitialized in this function [-Wmaybe-uninitialized] return rez; ^~~