Compilare: main.cpp: In function 'int main()': main.cpp:10:29: 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:13:31: 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:9:13: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] int poz,st,dr=0,n,i,mij,nr,k,s; ^~