Compilare: main.cpp: In function 'int main()': main.cpp:18:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld",&n,&k); ^ main.cpp:21:47: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld",&v[i].b,&v[i].a); ^ main.cpp:45:17: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] nr=((poz-v[i].a)/v[i].b)+1; ~~~~^~~~~~~~