Compilare: user.cpp: In function ‘int main()’: user.cpp:14:41: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 4 has type ‘int*’ [-Wformat=] fscanf(fi,"%d %lld %d " ,&n,&m,&x); ^ user.cpp:21:34: warning: format ‘%lf’ expects argument of type ‘double’, but argument 3 has type ‘int’ [-Wformat=] fprintf(fout,"%.9lf" ,1); ^ user.cpp:11:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&t); ^ user.cpp:14:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %lld %d " ,&n,&m,&x); ^ user.cpp:17:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%lf " ,&v[i]); ^