Compilare: user.cpp: In function ‘int main()’: user.cpp:37:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(out,"%d\n",R); ^ user.cpp:13:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&N,&M,&K); ^ user.cpp:23:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=K;i++) fscanf(in,"%d",&C[i]); ^ user.cpp:26:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&x,&y,&z); ^ user.cpp: In function ‘void ins(int, int)’: user.cpp:70:18: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(j=l+1;j>k+1;j--) ^