Compilare: main.cpp: In function 'int main()': main.cpp:12:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d",&p,&n,&k); ^ main.cpp:14:28: 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:64:14: warning: iteration 1001 invokes undefined behavior [-Waggressive-loop-optimizations] vv[j]=0; ~~~~~^~ main.cpp:63:16: note: within this loop for(j=0;j<=1001;j++) ~^~~~~~