Compilare: main.cpp: In function 'int main()': main.cpp:14:33: 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:17:47: 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:44:9: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] if(poz>=v[i].a) ^~